[Colonic contrast enema in digital luminescent radiography (DLR) and conventional x-ray technic].
120 double-contrast barium enemas were obtained by both digital luminescent radiography (DLR) and conventional screen-film systems, the digital exposure dose being 50% of the conventional one. In DLR two differently post processed images were obtained from one x-ray exposure: a display with low spatial frequency enhancement was processed to look like a conventional radiograph and was complemented by a display with high spatial frequency enhancement. Analysing the results statistically DLR proved to be diagnostically equivalent to conventional radiography despite the reduction in exposure dose and a slightly diminished image quality. High spatial frequency enhancement did not provide further diagnostic information and is therefore superfluous in barium enemas.
Krug
B
B
Radiologisches Institut, Universität Köln.
Steinbrich
W
W
Lorenz
R
R
Glathe
S
S
Dietlein
M
M
Schirrmeister
J
J
D000328:Adult; D000368:Aged; D001466:Barium Sulfate; D003106:Colon / Q000000981:diagnostic imaging*; D003108:Colonic Diseases / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D004733:Enema; D005260:Female; D006801:Humans; D008163:Luminescent Measurements; D008297:Male; D008875:Middle Aged; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000295:instrumentation / Q000379:methods*; D014963:X-Ray Intensifying Screens
D001466:Barium Sulfate
Kolonkontrasteinlauf in digitaler Lumineszenzradiographie (DLR) und konventioneller Röntgentechnik.