MRI

1. What is Magnetic Resonance Imaging (MRI)
?
1/6
https://www.nibib.nih.go
v/science-
education/science-
topics/magnetic-
resonance-imaging-mri
Site:
Workperformedby: PanzeraAlissia

2. What is MRI used for?
 Desease detection
2/6
Diagnosis
Treatment monitoring
MRI is a medical technique used specially in radiology for:

3. Parts of the machine:
Computer system
3/6
Formed by superconducting coils
(RF)

4. the Physics of MRI: 4/6
MRI scanners use strong magnetic field and radio waves to generate that pictures.
The patient is bathed in a
magnetic field 5000 times
stronger than the earths.
 The body is composed of 70% water.
 MRI uses the proton in Hydrogen atoms.
 Protons align parallel or anti-parallel in external magnetic field.
 Precession motor of protons.

5. Are there risks? 5/6
When performing an MRI scan, doctors need to consider
several factors affecting their patients:
 People with implants, particularly those containing
iron: such as pacemaker, vagus nerve stimulators
 Noise
 Nerve Stimulation
 Pregnancy
 Claustrophobia
NIBIB-funded researchers are experimenting with the MRI
machine, to adapt it to improve it.
New open MRI machine
Magnetic
Resonance
Elastography
(MRE)

6. what is the difference between MRI and others scan? 6/6
The MRI does not involve X-rays or the use of ionizing radiation, which distinguishes it from CT and PET scans
The brain, spinal cord and nerves, as well as muscles,
ligaments, and tendons are seen much more clearly with
MRI than with regular x-rays and CT.