Teleradiology allows radiographic images and reports to be electronically transmitted between locations. It consists of an image sending station, transmission network, and receiving/image review station. Common applications include allowing off-site radiologists and specialists to review images and providing consultations for rural primary care physicians. Key factors in teleradiology systems include image resolution, compression methods, and sufficient transmission speeds over networks like point-to-point, local area networks, or wide area networks.

3. 1. DEFINITION Teleradiology: A means of electronically transmitting patient’s radiographic images and consultative text from one location to another

4. 1. TYPES OF TELEMEDICINE

5. 2. COMPONENTS – Telemedicine system in general

9. Camera digitizer

13. Receiving/Image Review Station

16. A. Point-to-point connection

17. A. Point-to-point connection

19. B. Local Area Network (LAN)

21. C. Wide Area Network (WAN)

23. Server-mediated communication

24. Server-mediated communication

27. Image resolution – pixels 240 dpi 120 dpi 60 dpi 30 dpi

28. Image resolution – grey scale 255 grey levels / pixel 15 grey levels / pixel 5 grey levels / pixel 2 grey levels / pixel

30. Image compression

31. Image compression

32. Image compression

35. Transmission speed

41. Contrast-brightness control

42. Digital display monitor

45. DICOM images

46. DICOM viewer

48. PACS network

53. C. Primary / rural physicians

56. E. Computer-aided diagnosis

57. E. Computer-aided diagnosis

61. Satellite network

62. NASA satellite

63. Earth station – NASA Glenn

64. Earth station – University

65. Radiology - reading films