SlideShare ist ein Scribd-Unternehmen logo
1 von 64
Ionizing radiation : Historical
perspective and its use in
cancer patient

Dr.Ritam Joarder
Wave theory of light

Particle theory of light

Aristotle
Democrates
Descartes

Robert Hooke

Huygens
Fresnel
Thomas Young

Newton

Qu a n t u m
t he or y of
Plank
l i ght

Maxwell

Einstein
Faraday

William
Crookes

Eugene

Geissler
Wilhelm Conrad Röntgen: Discovery of X-ray
( November 8 ,1895 )
1896 : Controversial claims of Emil Grubbe
“First, that I was the
first person exposed
to x-rays who
received sufficient
cumulative effects to
develop x-ray
dermatitis.

Second, that I was
the first person to
apply x-rays to
pathologic lesions on
living human subjects
for therapeutic
purposes.”

Treated a woman with breast cancer in 1896
1896 : Victor Despeignes

Treated a case of
gastric carcinoma
with 80 sessions
lasting between 15
and 30 min daily
1896 : Therapeutic use of X-rays
1903 : Authored first textbook of radiotherapy

A five yr old girl with
pigmented hairy
naevus all over her

back treated and
cured , then lived
upto 75 yrs.
Leopold Freund
Di s c o v e r y o f

Ra d i o a

The Nobel Prize in Physics
1903.......awarded to
Antoine Henri Becquerel
"in recognition of the
extraordinary services he
has rendered by his
discovery of spontaneous
radioactivity"
1897 : Discovery of Electrons by
J . J . Thompson

Received
Nobel Prize
in Physics
1906
1898: Discovery of Radium And Polonium

Marie and
Pierre Curie
shared 1903
Nobel prize
in physics
with
Becquerel
1899 : Cure of Skin Cancer
Thor Stenbeck
cured BCC of
Nose with 100
treatments over 9
months in
Stockholm

Tage Sjoegren treated
sq. cell epithelioma
with 50 treatments over
30 months
1899: Discovery of α & β particles ( E. Rutherford )
1900: Proposal of Radioactive Decay & Half life

Received Noble prize

in Chemistry 1908 for
“Disintegration
theory “ of elements
1900 : Discovery of γ-rays

Paul Ulrich Villard
discovered gamma radiation
in 1900, while studying
radiation emitted from
radium. Villard's radiation
was named "gamma rays"
by Ernest Rutherford in 1903
1900: Formulation of Quantum theory

Awarded with
Noble prize in
Physics 1918
1903 : Law of the Photo electric effect

Albert Einstein
was awarded
with Noble
prize in Physics
1921
1903: Noble Prize in medicine for
Neils Ryberg Finsen

Used UV rays
to treat Lupus
Vulgaris , which
also used to
treat cancer
later on.
1904 : Fluorescent lamp of Edison
~ Death of Clarence Dally
.. . I started in to make a
number of these lamps,
but I soon found that the xray had affected
poisonously my assistant,
Mr. Daily, so that his hair
came out and his flesh
commenced to ulcerate. I
then concluded it would
not do, and that it would
not be a very popular kind
of light, so I dropped it...
1920s-1930s : Radioactive Quackery

Case of
“Radium
Girls”

1932 : Death of
Eben Beyers
Roentgen therapy Vs Radium therapy
1913: Hot Cathode tube ~ W D Coolidge
• Peak voltage of 140 Kv

with 5 mAmp current
• Max. dose at skin with

rapid dose fall-off with
depth inside tissue
1922: Discovery of Compton Scattering

Received Noble Prize
in Physics 1927
1923 : Grenz Ray therapy ( Gustav Bucky )

 < 20kV Voltage
 Filtration of 1.0 mm Al

 Used to treat skin
lesions
Contact Therapy Or Chaoul Therapy
 40-50 kV potential
 2mA current
 SSD 2cm or less
 0.5-1.0mm thickness

Al filter
 Rapidly decreasing
depth dose in tissue
Papillon technique for Superficial Rectal Cancer
Superficial Therapy

 50 – 150 Kv Voltage

 1- 6mm Al filtration
 1- 8 mm Al HVL
 15- 20 cm SSD
 Operated at 5- 8 mA
current
1930s:Orthovoltage therapy or Deep Therapy
( Sieman’s Stabilapan )






150-500 Kv voltage
10-20 mA current
50 cm SSD
HVL 1-4mm Cu

 Disadvantage :
High skin dose
Increased absorbed dose in bone
Increased Scattering
Telecurietherapy ( Radium bomb )

Sluys-Kessler Radium bomb

Failla's Radium bombs
Giaocchino Failla
1920s : Radiation dosimetry

R . Sievert

E.Quimby
1929 : Invention of Cyclotron

Ernest Lawrence
received Noble
prize in Physics
1939
1931 : Van de Graaff Generator (MIT)

40 feet high
Electrostatic device
capable of operating
at 5,000,000 volts

Robert van de Graaff

2 MeV Clinical
Van de Graaff
X-ray machine
1932 : Discovery of Neutron
James
Chadwick
received Noble
prize in Physics
1935
1934 : Artificial Radioactivity
Irène and
Frédéric Joliot
Curie shared
Noble prize in
Chemistry 1935
1938 : Discovery of Co60 isotope

Glenn T Seaborg
shared Noble prize
in Chemistry 1951
with Edwin M
McMillan for
discovery of
transuranium
elements
Glenn T Seaborg
1940 : Betatron ( Donald W Krest )

20 MeV Betatron created by Krest in University of
Ilionis , USA (originally planned by Achen Widroe)
1945 : Development of Synchrotron
Originally the principle had been published by Vladimir
Veksler

Edwin Mattison McMillan
later shared Noble Prize in
Chemistry In 1951 with Glenn
Seaborg for discovery in
chemistry of transuranium
elements
The Most Shameful day for Mankind

On Monday, August 6,
1945, at 8:15 AM, the
Atomic Bomb “ Little
Boy" was dropped on
Hiroshima by an
American B-29
bomber, the Enola
Gay directly killing
an estimated 80,000
people
1951 : Cobalt Bomb ( H.E.Johns)

First Cobalt 60 machine
in Saskatoon ,Canada
1953: First Linear Accelerator
1956: First pt treated with LINAC

Henry Kaplan

Gordon Issac,2yr old pt
of B/l Retinoblastoma
1958 : Computerized treatment planning introduced
:J. Laughlin, T. D. Sterling,
K. C. Tsien, R. Wood
1962 : Electronic portal imaging introduced: S.
Benner
1965: Conformal radiation therapy with multileaf
collimation introduced : S. Takahashi
1968: Gamma Knife introduced :Leksell

1969: First commercial treatment planning
systems :R. Bentley, J. Cox, W. Powers
1968 : Computer-assisted Tomography

Shared
Noble Prize
in Medicine
1979

Allan M Cormack Godfrey N. Hounsfield
1973 : Zeugmatography

Shared Noble
prize in
Medicine 2003
for their
discovery

Paul C. Lauterbur

Sir Peter Mansfield
1979 : Concepts of BEV, DVH,
Digital reconstructed radiographs

DVHs were introduced
by Michael Goitein and
Verhey in 1979 in a
publication by Shipley
et al
Brief History of Brachytherapy
1920s : Radium Surface therapy

Radium surface
brachytherapy
treatment of skin
cancer at the
Institut Curie, Paris,
1922
1920s : Use of needle implants

Interstitial implantation
of radon seeds for a
carcinoma
of the rectum, 1929, at
the London Hospital
1910-24 : Stockholm technique

Dr.Gosta Forssell : Started
radium treatment in Ca Cervix
in 1912

James Heyman :
Published “Stockholm
method in
radiotherapy of
uterine cencer “ in
1924

„Intensive, intermittent and intracavitary radium treatment method‟.
1934 : Manchester Dosage System

Ralston Paterson And
Herbert M Parker
developed Manchester
Dosage system for
surface applicators of
radium in 1934

Later revised by Margaret C Tod and W J Meredith
as Dosage System for Cancer of the Cervix in 1938
1978 : Paris System

B Pierquin ; A Deutreix
et al published Paris
system for Interstitial
brachytherapy in 1978
1904 : Earliest intracavitary applicator

Used by Wickham
and Degrais in
Paris from 1904.
Early Concepts of Radiobiology
1906 : Law of Bergonie And Tribondeau

cells tend to be
radiosensitive
if they have
•High division rate
• Long dividing
future
•Unspecialized
phenotype

Jean A Bergonie

L M Tribondeau
1911 : Concept of

fractionation

Sterilization of
ram's testis without
excessive skin
reactions using
fractionated
radiation ( Claude
Regaud )
1934 : Time –dose factor concept

Henri Coutard showed
that both skin and
mucosal reactions
depended on the dose,
the treatment time
and the no. of
treatment sessions.
1967 : Concept of Dose –volume Relationship

Hypothesized that in
addition to time-dose
factor , irradiation
damage to normal
tissue also depends
upon the volume
irradiated.

Francois Baclesse
Realizing the importance of oxygen
Louis Harold Gray and RH Thomlinson
established the relation of chronic
hypoxia and Radiosensitivity (1955)

The ability to quantitate cell killing.
1956, the cell-survival assay was
developed by Theodore T Puck and
Philip I Marcus
1963 : Variation of Radiosensitivity through the
cell cycle
: Toyozo Terasima and LJ Tolmach

1966 : Potentially lethal damage repair
: LJ Tolmach

1969 : Concept of Accelerated repopulation
: Hermens & Barendsen
1972 : Concept of Apoptosis
Kerr et al recognized
apoptotic cell death in
the response of
radiosensitive tissues to
ionizing radiation.
John F Kerr

1973 : Time course of
proliferation in normal
tissue following
irradiation
Julie Denekamp
1975 : Concept of 4 Rs of Radiobiology
Withers also quantified stem-cell
numbers and survival of normal
cells .

H Rodney Withers

1982 : Concept of
Biologically effective
dose
G W Barendsen
Advances in Radiotherapy
1900 to 1950
Advances in Radiotherapy
1950 to Present
" Martyr‟s Memorial "

On the memorial for “x-ray martyrs” in the garden of
St. George‟s Hospital, Hamburg, Germany, were 169
names inscribed in 1936; in 1959 their number had
increased to 359
This Effort Is Dedicated
TO THE RONTGENOLOGISTS AND RADIOLOGISTS OF
ALL NATIONS,
DOCTORS, PHYSICISTS, CHEMISTS, TECHNICAL WORKERS,
LABORATORY WORKERS AND HOSPITAL SISTERS
WHO GAVE THEIR LIVES IN THE STRUGGLE AGAINST THE
DISEASES OF MANKIND.
THEY WERE HEROIC LEADERS IN THE DEVELOPMENT
OF THE SUCCESSFUL AND SAFE USE OF X RAYS AND
RADIUM IN MEDICINE.
IMMORTAL IS THE GLORY OF THE WORK OF THE DEAD.
History of ionizing radiation
History of ionizing radiation
History of ionizing radiation

Weitere ähnliche Inhalte

Was ist angesagt?

Intensity-modulated Radiotherapy
Intensity-modulated RadiotherapyIntensity-modulated Radiotherapy
Intensity-modulated RadiotherapyDr Vijay Raturi
 
RapidArc PowerPoint Presentation
RapidArc PowerPoint PresentationRapidArc PowerPoint Presentation
RapidArc PowerPoint PresentationVasthi Wilson
 
Volumetric Modulated Arc Therapy
Volumetric Modulated Arc TherapyVolumetric Modulated Arc Therapy
Volumetric Modulated Arc Therapyfondas vakalis
 
Immobilization techniques in SRS and SBRT
Immobilization techniques in SRS and SBRTImmobilization techniques in SRS and SBRT
Immobilization techniques in SRS and SBRTShreya Singh
 
Rrecent advances in linear accelerators [MR linac]
Rrecent advances in linear accelerators [MR linac]Rrecent advances in linear accelerators [MR linac]
Rrecent advances in linear accelerators [MR linac]Upasna Saxena
 
Total body irradiation
Total body irradiationTotal body irradiation
Total body irradiationbasilpaulsunny
 
Beam modifying devices 1 Radiophysics
Beam modifying devices 1 RadiophysicsBeam modifying devices 1 Radiophysics
Beam modifying devices 1 RadiophysicsDrAyush Garg
 
Isodose curves RADIATION ONCOLOGY
Isodose curves RADIATION ONCOLOGYIsodose curves RADIATION ONCOLOGY
Isodose curves RADIATION ONCOLOGYPaul George
 
Occupational radiation safety in Radiotherapy, Timothy Peace S
Occupational radiation safety in Radiotherapy, Timothy Peace SOccupational radiation safety in Radiotherapy, Timothy Peace S
Occupational radiation safety in Radiotherapy, Timothy Peace Sohscmcvellore
 
Basics And Physics of Brachytherapy
Basics And Physics of BrachytherapyBasics And Physics of Brachytherapy
Basics And Physics of BrachytherapySreekanth Nallam
 

Was ist angesagt? (20)

Electron beam therapy
Electron beam therapyElectron beam therapy
Electron beam therapy
 
Intensity-modulated Radiotherapy
Intensity-modulated RadiotherapyIntensity-modulated Radiotherapy
Intensity-modulated Radiotherapy
 
Icru 58.
Icru 58.Icru 58.
Icru 58.
 
RapidArc PowerPoint Presentation
RapidArc PowerPoint PresentationRapidArc PowerPoint Presentation
RapidArc PowerPoint Presentation
 
Helical Tomotherapy
Helical TomotherapyHelical Tomotherapy
Helical Tomotherapy
 
Volumetric Modulated Arc Therapy
Volumetric Modulated Arc TherapyVolumetric Modulated Arc Therapy
Volumetric Modulated Arc Therapy
 
Immobilization techniques in SRS and SBRT
Immobilization techniques in SRS and SBRTImmobilization techniques in SRS and SBRT
Immobilization techniques in SRS and SBRT
 
Breast Cancer Radiation Therapy: RT Plan evaluation & Recent Advances - 4DCT ...
Breast Cancer Radiation Therapy: RT Plan evaluation & Recent Advances - 4DCT ...Breast Cancer Radiation Therapy: RT Plan evaluation & Recent Advances - 4DCT ...
Breast Cancer Radiation Therapy: RT Plan evaluation & Recent Advances - 4DCT ...
 
Rrecent advances in linear accelerators [MR linac]
Rrecent advances in linear accelerators [MR linac]Rrecent advances in linear accelerators [MR linac]
Rrecent advances in linear accelerators [MR linac]
 
Gap correction
Gap correctionGap correction
Gap correction
 
Total body irradiation
Total body irradiationTotal body irradiation
Total body irradiation
 
ICRU 38 nayana
ICRU 38 nayanaICRU 38 nayana
ICRU 38 nayana
 
Beam modifying devices 1 Radiophysics
Beam modifying devices 1 RadiophysicsBeam modifying devices 1 Radiophysics
Beam modifying devices 1 Radiophysics
 
Srs and sbrt 2 dr.kiran
Srs and sbrt 2 dr.kiranSrs and sbrt 2 dr.kiran
Srs and sbrt 2 dr.kiran
 
Isodose curves RADIATION ONCOLOGY
Isodose curves RADIATION ONCOLOGYIsodose curves RADIATION ONCOLOGY
Isodose curves RADIATION ONCOLOGY
 
Dose volume histogram
Dose volume histogramDose volume histogram
Dose volume histogram
 
Icru 50
Icru 50Icru 50
Icru 50
 
Occupational radiation safety in Radiotherapy, Timothy Peace S
Occupational radiation safety in Radiotherapy, Timothy Peace SOccupational radiation safety in Radiotherapy, Timothy Peace S
Occupational radiation safety in Radiotherapy, Timothy Peace S
 
Tomotherapy
TomotherapyTomotherapy
Tomotherapy
 
Basics And Physics of Brachytherapy
Basics And Physics of BrachytherapyBasics And Physics of Brachytherapy
Basics And Physics of Brachytherapy
 

Andere mochten auch (9)

Radiotherapy : Past Present Future KMIO 2015
Radiotherapy :  Past Present Future  KMIO 2015Radiotherapy :  Past Present Future  KMIO 2015
Radiotherapy : Past Present Future KMIO 2015
 
Final cancer presentation
Final cancer presentationFinal cancer presentation
Final cancer presentation
 
Oncology Nursing Lecture
Oncology Nursing LectureOncology Nursing Lecture
Oncology Nursing Lecture
 
Cancer Nursing
Cancer NursingCancer Nursing
Cancer Nursing
 
Cancer PPT (From Mrs. Brenda Lee)
Cancer PPT (From Mrs. Brenda Lee)Cancer PPT (From Mrs. Brenda Lee)
Cancer PPT (From Mrs. Brenda Lee)
 
Cancer ppt
Cancer pptCancer ppt
Cancer ppt
 
Cancer slides
Cancer slidesCancer slides
Cancer slides
 
Cancer.ppt
Cancer.pptCancer.ppt
Cancer.ppt
 
Cancer Powerpoint
Cancer PowerpointCancer Powerpoint
Cancer Powerpoint
 

Ähnlich wie History of ionizing radiation

Braquiterapia historia
Braquiterapia historiaBraquiterapia historia
Braquiterapia historiapaliza aldo
 
Section 2 part 1
Section 2 part 1Section 2 part 1
Section 2 part 1jmocherman
 
History of Radiotherapy
History of RadiotherapyHistory of Radiotherapy
History of RadiotherapyDeepika Malik
 
Radiation protection course for radiologists Lecture 3
Radiation protection course for radiologists Lecture 3Radiation protection course for radiologists Lecture 3
Radiation protection course for radiologists Lecture 3Amin Amin
 
01Almond-HistoryandNeedforAccuracy.pdf
01Almond-HistoryandNeedforAccuracy.pdf01Almond-HistoryandNeedforAccuracy.pdf
01Almond-HistoryandNeedforAccuracy.pdfNishant835443
 
History of radiation therapy and application
History of radiation therapy and applicationHistory of radiation therapy and application
History of radiation therapy and applicationKanhu Charan
 
February 2021 ONCOLOGY CARTOON
February 2021 ONCOLOGY CARTOONFebruary 2021 ONCOLOGY CARTOON
February 2021 ONCOLOGY CARTOONKanhu Charan
 
Oral radiology lecture 1
Oral radiology lecture 1Oral radiology lecture 1
Oral radiology lecture 1Lama K Banna
 
HISTORY OF RADIOLOGY ppt.pptx
HISTORY OF RADIOLOGY  ppt.pptxHISTORY OF RADIOLOGY  ppt.pptx
HISTORY OF RADIOLOGY ppt.pptxnisha dua
 
Evolution of RT in Modern Medicine.pptx
Evolution of RT in Modern Medicine.pptxEvolution of RT in Modern Medicine.pptx
Evolution of RT in Modern Medicine.pptxSankalp Singh
 
Nobel Prize in Physiology or Medicine: Ideas Changing The World: 2014
Nobel Prize in Physiology or Medicine: Ideas Changing The World: 2014Nobel Prize in Physiology or Medicine: Ideas Changing The World: 2014
Nobel Prize in Physiology or Medicine: Ideas Changing The World: 2014DR. SAIFUL ALOM SIDDIQUE
 
significance of dosimetry in radiotherapy
significance of dosimetry in radiotherapysignificance of dosimetry in radiotherapy
significance of dosimetry in radiotherapyNkjayapalan1
 
Various Dosimetry systems in radiotherapy.pptx
Various Dosimetry systems in radiotherapy.pptxVarious Dosimetry systems in radiotherapy.pptx
Various Dosimetry systems in radiotherapy.pptxNkjayapalan1
 
Nuclear Medicine
Nuclear MedicineNuclear Medicine
Nuclear MedicineSajad Buch
 
Laser Development History [Stanford laser history]
Laser Development History [Stanford laser history]Laser Development History [Stanford laser history]
Laser Development History [Stanford laser history]TayyabImran3
 

Ähnlich wie History of ionizing radiation (20)

Braquiterapia historia
Braquiterapia historiaBraquiterapia historia
Braquiterapia historia
 
Section 2 part 1
Section 2 part 1Section 2 part 1
Section 2 part 1
 
History of Radiotherapy
History of RadiotherapyHistory of Radiotherapy
History of Radiotherapy
 
Radiation protection course for radiologists Lecture 3
Radiation protection course for radiologists Lecture 3Radiation protection course for radiologists Lecture 3
Radiation protection course for radiologists Lecture 3
 
lecture 1-2.pptx
lecture 1-2.pptxlecture 1-2.pptx
lecture 1-2.pptx
 
01Almond-HistoryandNeedforAccuracy.pdf
01Almond-HistoryandNeedforAccuracy.pdf01Almond-HistoryandNeedforAccuracy.pdf
01Almond-HistoryandNeedforAccuracy.pdf
 
History of radiation therapy and application
History of radiation therapy and applicationHistory of radiation therapy and application
History of radiation therapy and application
 
historical perspective of radiology
historical perspective of radiologyhistorical perspective of radiology
historical perspective of radiology
 
Evolution of radiation 2012
Evolution of radiation 2012Evolution of radiation 2012
Evolution of radiation 2012
 
February 2021 ONCOLOGY CARTOON
February 2021 ONCOLOGY CARTOONFebruary 2021 ONCOLOGY CARTOON
February 2021 ONCOLOGY CARTOON
 
Oral radiology lecture 1
Oral radiology lecture 1Oral radiology lecture 1
Oral radiology lecture 1
 
HISTORY OF RADIOLOGY ppt.pptx
HISTORY OF RADIOLOGY  ppt.pptxHISTORY OF RADIOLOGY  ppt.pptx
HISTORY OF RADIOLOGY ppt.pptx
 
Radiosurgery
RadiosurgeryRadiosurgery
Radiosurgery
 
radiation physics.ppt
radiation physics.pptradiation physics.ppt
radiation physics.ppt
 
Evolution of RT in Modern Medicine.pptx
Evolution of RT in Modern Medicine.pptxEvolution of RT in Modern Medicine.pptx
Evolution of RT in Modern Medicine.pptx
 
Nobel Prize in Physiology or Medicine: Ideas Changing The World: 2014
Nobel Prize in Physiology or Medicine: Ideas Changing The World: 2014Nobel Prize in Physiology or Medicine: Ideas Changing The World: 2014
Nobel Prize in Physiology or Medicine: Ideas Changing The World: 2014
 
significance of dosimetry in radiotherapy
significance of dosimetry in radiotherapysignificance of dosimetry in radiotherapy
significance of dosimetry in radiotherapy
 
Various Dosimetry systems in radiotherapy.pptx
Various Dosimetry systems in radiotherapy.pptxVarious Dosimetry systems in radiotherapy.pptx
Various Dosimetry systems in radiotherapy.pptx
 
Nuclear Medicine
Nuclear MedicineNuclear Medicine
Nuclear Medicine
 
Laser Development History [Stanford laser history]
Laser Development History [Stanford laser history]Laser Development History [Stanford laser history]
Laser Development History [Stanford laser history]
 

Kürzlich hochgeladen

Call Girls Bangalore Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Bangalore Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Bangalore Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Bangalore Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 
Top Rated Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...
Top Rated  Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...Top Rated  Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...
Top Rated Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...chandars293
 
Call Girls Aurangabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Aurangabad Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Aurangabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Aurangabad Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 
Night 7k to 12k Navi Mumbai Call Girl Photo 👉 BOOK NOW 9833363713 👈 ♀️ night ...
Night 7k to 12k Navi Mumbai Call Girl Photo 👉 BOOK NOW 9833363713 👈 ♀️ night ...Night 7k to 12k Navi Mumbai Call Girl Photo 👉 BOOK NOW 9833363713 👈 ♀️ night ...
Night 7k to 12k Navi Mumbai Call Girl Photo 👉 BOOK NOW 9833363713 👈 ♀️ night ...aartirawatdelhi
 
Call Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 
Call Girls Bareilly Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Bareilly Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Bareilly Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Bareilly Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 
(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...
(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...
(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...parulsinha
 
Call Girls Siliguri Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Siliguri Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Siliguri Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Siliguri Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 
All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...
All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...
All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...Arohi Goyal
 
(👑VVIP ISHAAN ) Russian Call Girls Service Navi Mumbai🖕9920874524🖕Independent...
(👑VVIP ISHAAN ) Russian Call Girls Service Navi Mumbai🖕9920874524🖕Independent...(👑VVIP ISHAAN ) Russian Call Girls Service Navi Mumbai🖕9920874524🖕Independent...
(👑VVIP ISHAAN ) Russian Call Girls Service Navi Mumbai🖕9920874524🖕Independent...Taniya Sharma
 
Call Girls Haridwar Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Haridwar Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Haridwar Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Haridwar Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 
Premium Bangalore Call Girls Jigani Dail 6378878445 Escort Service For Hot Ma...
Premium Bangalore Call Girls Jigani Dail 6378878445 Escort Service For Hot Ma...Premium Bangalore Call Girls Jigani Dail 6378878445 Escort Service For Hot Ma...
Premium Bangalore Call Girls Jigani Dail 6378878445 Escort Service For Hot Ma...tanya dube
 
Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...
Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...
Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...Dipal Arora
 
Pondicherry Call Girls Book Now 9630942363 Top Class Pondicherry Escort Servi...
Pondicherry Call Girls Book Now 9630942363 Top Class Pondicherry Escort Servi...Pondicherry Call Girls Book Now 9630942363 Top Class Pondicherry Escort Servi...
Pondicherry Call Girls Book Now 9630942363 Top Class Pondicherry Escort Servi...Genuine Call Girls
 
💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...
💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...
💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...Taniya Sharma
 
Bangalore Call Girls Nelamangala Number 9332606886 Meetin With Bangalore Esc...
Bangalore Call Girls Nelamangala Number 9332606886  Meetin With Bangalore Esc...Bangalore Call Girls Nelamangala Number 9332606886  Meetin With Bangalore Esc...
Bangalore Call Girls Nelamangala Number 9332606886 Meetin With Bangalore Esc...narwatsonia7
 
Call Girls Gwalior Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Gwalior Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Gwalior Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Gwalior Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...hotbabesbook
 
Call Girls Cuttack Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Cuttack Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Cuttack Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Cuttack Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 
Call Girls Faridabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Faridabad Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Faridabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Faridabad Just Call 9907093804 Top Class Call Girl Service AvailableDipal Arora
 

Kürzlich hochgeladen (20)

Call Girls Bangalore Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Bangalore Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Bangalore Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Bangalore Just Call 9907093804 Top Class Call Girl Service Available
 
Top Rated Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...
Top Rated  Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...Top Rated  Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...
Top Rated Hyderabad Call Girls Erragadda ⟟ 6297143586 ⟟ Call Me For Genuine ...
 
Call Girls Aurangabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Aurangabad Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Aurangabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Aurangabad Just Call 9907093804 Top Class Call Girl Service Available
 
Night 7k to 12k Navi Mumbai Call Girl Photo 👉 BOOK NOW 9833363713 👈 ♀️ night ...
Night 7k to 12k Navi Mumbai Call Girl Photo 👉 BOOK NOW 9833363713 👈 ♀️ night ...Night 7k to 12k Navi Mumbai Call Girl Photo 👉 BOOK NOW 9833363713 👈 ♀️ night ...
Night 7k to 12k Navi Mumbai Call Girl Photo 👉 BOOK NOW 9833363713 👈 ♀️ night ...
 
Call Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Ludhiana Just Call 9907093804 Top Class Call Girl Service Available
 
Call Girls Bareilly Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Bareilly Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Bareilly Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Bareilly Just Call 9907093804 Top Class Call Girl Service Available
 
(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...
(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...
(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...
 
Call Girls Siliguri Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Siliguri Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Siliguri Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Siliguri Just Call 9907093804 Top Class Call Girl Service Available
 
All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...
All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...
All Time Service Available Call Girls Marine Drive 📳 9820252231 For 18+ VIP C...
 
(👑VVIP ISHAAN ) Russian Call Girls Service Navi Mumbai🖕9920874524🖕Independent...
(👑VVIP ISHAAN ) Russian Call Girls Service Navi Mumbai🖕9920874524🖕Independent...(👑VVIP ISHAAN ) Russian Call Girls Service Navi Mumbai🖕9920874524🖕Independent...
(👑VVIP ISHAAN ) Russian Call Girls Service Navi Mumbai🖕9920874524🖕Independent...
 
Call Girls Haridwar Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Haridwar Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Haridwar Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Haridwar Just Call 9907093804 Top Class Call Girl Service Available
 
Premium Bangalore Call Girls Jigani Dail 6378878445 Escort Service For Hot Ma...
Premium Bangalore Call Girls Jigani Dail 6378878445 Escort Service For Hot Ma...Premium Bangalore Call Girls Jigani Dail 6378878445 Escort Service For Hot Ma...
Premium Bangalore Call Girls Jigani Dail 6378878445 Escort Service For Hot Ma...
 
Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...
Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...
Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...
 
Pondicherry Call Girls Book Now 9630942363 Top Class Pondicherry Escort Servi...
Pondicherry Call Girls Book Now 9630942363 Top Class Pondicherry Escort Servi...Pondicherry Call Girls Book Now 9630942363 Top Class Pondicherry Escort Servi...
Pondicherry Call Girls Book Now 9630942363 Top Class Pondicherry Escort Servi...
 
💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...
💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...
💎VVIP Kolkata Call Girls Parganas🩱7001035870🩱Independent Girl ( Ac Rooms Avai...
 
Bangalore Call Girls Nelamangala Number 9332606886 Meetin With Bangalore Esc...
Bangalore Call Girls Nelamangala Number 9332606886  Meetin With Bangalore Esc...Bangalore Call Girls Nelamangala Number 9332606886  Meetin With Bangalore Esc...
Bangalore Call Girls Nelamangala Number 9332606886 Meetin With Bangalore Esc...
 
Call Girls Gwalior Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Gwalior Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Gwalior Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Gwalior Just Call 9907093804 Top Class Call Girl Service Available
 
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
 
Call Girls Cuttack Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Cuttack Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Cuttack Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Cuttack Just Call 9907093804 Top Class Call Girl Service Available
 
Call Girls Faridabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Faridabad Just Call 9907093804 Top Class Call Girl Service AvailableCall Girls Faridabad Just Call 9907093804 Top Class Call Girl Service Available
Call Girls Faridabad Just Call 9907093804 Top Class Call Girl Service Available
 

History of ionizing radiation

  • 1. Ionizing radiation : Historical perspective and its use in cancer patient Dr.Ritam Joarder
  • 2. Wave theory of light Particle theory of light Aristotle Democrates Descartes Robert Hooke Huygens Fresnel Thomas Young Newton Qu a n t u m t he or y of Plank l i ght Maxwell Einstein
  • 4. Wilhelm Conrad Röntgen: Discovery of X-ray ( November 8 ,1895 )
  • 5. 1896 : Controversial claims of Emil Grubbe “First, that I was the first person exposed to x-rays who received sufficient cumulative effects to develop x-ray dermatitis. Second, that I was the first person to apply x-rays to pathologic lesions on living human subjects for therapeutic purposes.” Treated a woman with breast cancer in 1896
  • 6. 1896 : Victor Despeignes Treated a case of gastric carcinoma with 80 sessions lasting between 15 and 30 min daily
  • 7. 1896 : Therapeutic use of X-rays 1903 : Authored first textbook of radiotherapy A five yr old girl with pigmented hairy naevus all over her back treated and cured , then lived upto 75 yrs. Leopold Freund
  • 8. Di s c o v e r y o f Ra d i o a The Nobel Prize in Physics 1903.......awarded to Antoine Henri Becquerel "in recognition of the extraordinary services he has rendered by his discovery of spontaneous radioactivity"
  • 9. 1897 : Discovery of Electrons by J . J . Thompson Received Nobel Prize in Physics 1906
  • 10. 1898: Discovery of Radium And Polonium Marie and Pierre Curie shared 1903 Nobel prize in physics with Becquerel
  • 11. 1899 : Cure of Skin Cancer Thor Stenbeck cured BCC of Nose with 100 treatments over 9 months in Stockholm Tage Sjoegren treated sq. cell epithelioma with 50 treatments over 30 months
  • 12. 1899: Discovery of α & β particles ( E. Rutherford ) 1900: Proposal of Radioactive Decay & Half life Received Noble prize in Chemistry 1908 for “Disintegration theory “ of elements
  • 13. 1900 : Discovery of γ-rays Paul Ulrich Villard discovered gamma radiation in 1900, while studying radiation emitted from radium. Villard's radiation was named "gamma rays" by Ernest Rutherford in 1903
  • 14. 1900: Formulation of Quantum theory Awarded with Noble prize in Physics 1918
  • 15. 1903 : Law of the Photo electric effect Albert Einstein was awarded with Noble prize in Physics 1921
  • 16. 1903: Noble Prize in medicine for Neils Ryberg Finsen Used UV rays to treat Lupus Vulgaris , which also used to treat cancer later on.
  • 17. 1904 : Fluorescent lamp of Edison ~ Death of Clarence Dally .. . I started in to make a number of these lamps, but I soon found that the xray had affected poisonously my assistant, Mr. Daily, so that his hair came out and his flesh commenced to ulcerate. I then concluded it would not do, and that it would not be a very popular kind of light, so I dropped it...
  • 18. 1920s-1930s : Radioactive Quackery Case of “Radium Girls” 1932 : Death of Eben Beyers
  • 19. Roentgen therapy Vs Radium therapy
  • 20. 1913: Hot Cathode tube ~ W D Coolidge • Peak voltage of 140 Kv with 5 mAmp current • Max. dose at skin with rapid dose fall-off with depth inside tissue
  • 21. 1922: Discovery of Compton Scattering Received Noble Prize in Physics 1927
  • 22. 1923 : Grenz Ray therapy ( Gustav Bucky )  < 20kV Voltage  Filtration of 1.0 mm Al  Used to treat skin lesions
  • 23. Contact Therapy Or Chaoul Therapy  40-50 kV potential  2mA current  SSD 2cm or less  0.5-1.0mm thickness Al filter  Rapidly decreasing depth dose in tissue Papillon technique for Superficial Rectal Cancer
  • 24. Superficial Therapy  50 – 150 Kv Voltage  1- 6mm Al filtration  1- 8 mm Al HVL  15- 20 cm SSD  Operated at 5- 8 mA current
  • 25. 1930s:Orthovoltage therapy or Deep Therapy ( Sieman’s Stabilapan )     150-500 Kv voltage 10-20 mA current 50 cm SSD HVL 1-4mm Cu  Disadvantage : High skin dose Increased absorbed dose in bone Increased Scattering
  • 26. Telecurietherapy ( Radium bomb ) Sluys-Kessler Radium bomb Failla's Radium bombs Giaocchino Failla
  • 27. 1920s : Radiation dosimetry R . Sievert E.Quimby
  • 28. 1929 : Invention of Cyclotron Ernest Lawrence received Noble prize in Physics 1939
  • 29. 1931 : Van de Graaff Generator (MIT) 40 feet high Electrostatic device capable of operating at 5,000,000 volts Robert van de Graaff 2 MeV Clinical Van de Graaff X-ray machine
  • 30. 1932 : Discovery of Neutron James Chadwick received Noble prize in Physics 1935
  • 31. 1934 : Artificial Radioactivity Irène and Frédéric Joliot Curie shared Noble prize in Chemistry 1935
  • 32. 1938 : Discovery of Co60 isotope Glenn T Seaborg shared Noble prize in Chemistry 1951 with Edwin M McMillan for discovery of transuranium elements Glenn T Seaborg
  • 33. 1940 : Betatron ( Donald W Krest ) 20 MeV Betatron created by Krest in University of Ilionis , USA (originally planned by Achen Widroe)
  • 34. 1945 : Development of Synchrotron Originally the principle had been published by Vladimir Veksler Edwin Mattison McMillan later shared Noble Prize in Chemistry In 1951 with Glenn Seaborg for discovery in chemistry of transuranium elements
  • 35. The Most Shameful day for Mankind On Monday, August 6, 1945, at 8:15 AM, the Atomic Bomb “ Little Boy" was dropped on Hiroshima by an American B-29 bomber, the Enola Gay directly killing an estimated 80,000 people
  • 36. 1951 : Cobalt Bomb ( H.E.Johns) First Cobalt 60 machine in Saskatoon ,Canada
  • 37. 1953: First Linear Accelerator 1956: First pt treated with LINAC Henry Kaplan Gordon Issac,2yr old pt of B/l Retinoblastoma
  • 38. 1958 : Computerized treatment planning introduced :J. Laughlin, T. D. Sterling, K. C. Tsien, R. Wood 1962 : Electronic portal imaging introduced: S. Benner 1965: Conformal radiation therapy with multileaf collimation introduced : S. Takahashi 1968: Gamma Knife introduced :Leksell 1969: First commercial treatment planning systems :R. Bentley, J. Cox, W. Powers
  • 39. 1968 : Computer-assisted Tomography Shared Noble Prize in Medicine 1979 Allan M Cormack Godfrey N. Hounsfield
  • 40. 1973 : Zeugmatography Shared Noble prize in Medicine 2003 for their discovery Paul C. Lauterbur Sir Peter Mansfield
  • 41. 1979 : Concepts of BEV, DVH, Digital reconstructed radiographs DVHs were introduced by Michael Goitein and Verhey in 1979 in a publication by Shipley et al
  • 42. Brief History of Brachytherapy
  • 43. 1920s : Radium Surface therapy Radium surface brachytherapy treatment of skin cancer at the Institut Curie, Paris, 1922
  • 44. 1920s : Use of needle implants Interstitial implantation of radon seeds for a carcinoma of the rectum, 1929, at the London Hospital
  • 45. 1910-24 : Stockholm technique Dr.Gosta Forssell : Started radium treatment in Ca Cervix in 1912 James Heyman : Published “Stockholm method in radiotherapy of uterine cencer “ in 1924 „Intensive, intermittent and intracavitary radium treatment method‟.
  • 46. 1934 : Manchester Dosage System Ralston Paterson And Herbert M Parker developed Manchester Dosage system for surface applicators of radium in 1934 Later revised by Margaret C Tod and W J Meredith as Dosage System for Cancer of the Cervix in 1938
  • 47. 1978 : Paris System B Pierquin ; A Deutreix et al published Paris system for Interstitial brachytherapy in 1978
  • 48. 1904 : Earliest intracavitary applicator Used by Wickham and Degrais in Paris from 1904.
  • 49. Early Concepts of Radiobiology
  • 50. 1906 : Law of Bergonie And Tribondeau cells tend to be radiosensitive if they have •High division rate • Long dividing future •Unspecialized phenotype Jean A Bergonie L M Tribondeau
  • 51. 1911 : Concept of fractionation Sterilization of ram's testis without excessive skin reactions using fractionated radiation ( Claude Regaud )
  • 52. 1934 : Time –dose factor concept Henri Coutard showed that both skin and mucosal reactions depended on the dose, the treatment time and the no. of treatment sessions.
  • 53. 1967 : Concept of Dose –volume Relationship Hypothesized that in addition to time-dose factor , irradiation damage to normal tissue also depends upon the volume irradiated. Francois Baclesse
  • 54. Realizing the importance of oxygen Louis Harold Gray and RH Thomlinson established the relation of chronic hypoxia and Radiosensitivity (1955) The ability to quantitate cell killing. 1956, the cell-survival assay was developed by Theodore T Puck and Philip I Marcus
  • 55. 1963 : Variation of Radiosensitivity through the cell cycle : Toyozo Terasima and LJ Tolmach 1966 : Potentially lethal damage repair : LJ Tolmach 1969 : Concept of Accelerated repopulation : Hermens & Barendsen
  • 56. 1972 : Concept of Apoptosis Kerr et al recognized apoptotic cell death in the response of radiosensitive tissues to ionizing radiation. John F Kerr 1973 : Time course of proliferation in normal tissue following irradiation Julie Denekamp
  • 57. 1975 : Concept of 4 Rs of Radiobiology Withers also quantified stem-cell numbers and survival of normal cells . H Rodney Withers 1982 : Concept of Biologically effective dose G W Barendsen
  • 60. " Martyr‟s Memorial " On the memorial for “x-ray martyrs” in the garden of St. George‟s Hospital, Hamburg, Germany, were 169 names inscribed in 1936; in 1959 their number had increased to 359
  • 61. This Effort Is Dedicated TO THE RONTGENOLOGISTS AND RADIOLOGISTS OF ALL NATIONS, DOCTORS, PHYSICISTS, CHEMISTS, TECHNICAL WORKERS, LABORATORY WORKERS AND HOSPITAL SISTERS WHO GAVE THEIR LIVES IN THE STRUGGLE AGAINST THE DISEASES OF MANKIND. THEY WERE HEROIC LEADERS IN THE DEVELOPMENT OF THE SUCCESSFUL AND SAFE USE OF X RAYS AND RADIUM IN MEDICINE. IMMORTAL IS THE GLORY OF THE WORK OF THE DEAD.

Hinweis der Redaktion

  1. In between 300-400 BCaristotle,descartes(1637),huygens(1678),fresnel91817),maxwell(1873)Democrates(400bc,pierre gassendi(1660) issacnewton(1675)Max plank(1990).einstein(1905)
  2. Henry geissler
  3. On N ovember 8, 1895, in his laboratory in Wurzburg, W. C. R oentgen(Figure 1) registered the new type of penetrating rays. H e spent sevenweeks to follow working on his experiment and on D ecember 26, 1895,took the very first picture of his wife’s hand with a ring using what hecalled the new rays, creating the new famous roentgen picture.For this revolutionary discovery he was awarded with first nble prize in physics in 1901.
  4. It was already on January 12, 1896, only 17 days from publishingRoentgen’s discovery, that E mil G rubbe applied X-rays to irradiatea female patient suffering from locally advanced breast cancer andrecorded palliative effect. He himself died in 1960 as the result of multiple squamouscarcinomas with metastases probably due to his work with radiation.
  5. Despeignes was the first to apply roentgen therapy inFrance. In July 1896 he treated a case of gastric carcinomawith 80 sessions lasting between 15 and 30 min daily. Hereported improvement and pain relief. Treatment was giventwice daily
  6. In Austria, the dermatologist LeopoldFreund had among others observed epilation after exposureto x-rays. In 1896 he treated a patient with hairynevus (3) daily over 2 weeks and was the first to givefractionated radiotherapy
  7. The field grew rapidly through the last years of the 19thcentury and into the first years of the 20th (3). Antoine-HenriBecquerel, a physics professor in Paris, was the first to recognizenatural radioactivity while working with uranium salts
  8. The first cases of basal cellcarcinoma of the skin and squamous cell carcinoma of theskin were cured in Stockholm in 1900 by T. Stenbeck andT. Sjogren (4), who used the same technique as Freund
  9. The depth towhich X-rays can penetrate into biological tissue is related to thephoton energies, and therefore, early radiotherapy was verylimited by devices that could produce only low X-ray energies(f100 keV). Stimulated by the early successes of X-ray therapy,many scientists turned their attention to producing higher energyX-rays that penetrate deeper into tissue. This was necessary toreduce dose deposition in skin, thus allowing for treatment ofinternal tumors without causing severe skin burns at pointswhere beams enter the body.By 1913 William Coolidge, an American physicist, was workingwith General Electric to develop hot-cathode X-ray tubes, whichproduced energies in the 200 keV range. Treatment with thesetubes was initially termed deep roentgen therapy and later calledorthovoltage XRT
  10. One of the oldest rules in radiobiology —developed in 1906 by two French radiobiologists,Bergonié and Tribondeau — offereda prediction about the relative sensitivity ofdifferent types of cells to radiation. The socalled‘Law of Bergonié and Tribondeau’concluded that cells tend to be radiosensitiveif they have three properties: a highdivision rate, a long dividing future, and anunspecialized phenotype22. This law pavedthe way for several radiobiology rules thatwere discovered a few years later by Germanand British radiation scientists from in vitro experiments.
  11. In 1911 Claudius Regaud, an intern from Lyon, showed that aram’s testes could be sterilized without causing major burns tothe scrotal skin, if three irradiations were delivered 15 days apart(11, 12). This series of landmark experiments established the basisof what would become the principle of fractionation for externalbeam radiotherapy (XRT
  12. In the 1920s, Coutardapplied the concept of fractionated XRT with treatment coursesprotracted over several weeks. Using this strategy, he was able tocure patients with a variety of head and neck malignancies and topopularize this concept of fractionation in the internationalcommunity (2, 13–15). His technologic advancesincluded many concepts taken for granted today, including customimmobilization of patients, beam hardening with metallic filters toachieve higher photon energies, and collimation/shaping of beams.
  13. in 1955 by Thomlinson and Gray whenthey proposed that oxygen levels decreasedin a respiring tumour mass through eachsuccessive cell layer distal to the lumen ofthe capillary.