Clinical comparison of analog and digital 100 mm photofluorography.
Many of the problems associated with digital acquisition of clinical images from x-ray intensifier/television systems have been eliminated by the use of a pulsed progressive readout from a 1024 line television camera into a 1024 x 1024 pixel image store, the whole arrangement triggered by the circuitry of a 100 mm camera. By means of a beam splitter, this study demonstrates a clinical comparability between 100 mm and digital images under identical conditions. In addition, radiation dose levels can be reduced by tailoring exposures to individual patients and their clinical needs. Several clinical cases are presented to illustrate the interchangeability of the new digital modality for fluoroscopic examination with an ordinary sized x-ray image intensifier.
Hynes
D M
DM
Department of Diagnostic Imaging, St. Joseph's Health Centre, Toronto, Ontario.
Rowlands
J A
JA
Edmonds
E W
EW
D001842:Bone and Bones / Q000000981:diagnostic imaging; D003287:Contrast Media; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009192:Myelography / Q000379:methods; D010779:Photofluorography / Q000295:instrumentation / Q000379:methods*; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement; D013270:Stomach / Q000000981:diagnostic imaging; D013690:Television; D014741:Video Recording; D014963:X-Ray Intensifying Screens
D003287:Contrast Media