[The diagnostic value of digital and conventional imaging in intravenous urography].
OBJECTIVE
To compare image quality of digital luminescence radiography with conventional film-screen techniques during excretion urography. Four field tests and ROC analysis for determining diagnostic value.


METHODS
135 patients were included in a prospective study. Three independent observers judged the five minute (59 cases) or ten minute (76 cases) films after contrast injection using digital images as well as corresponding conventional images (five minutes-76 cases, ten minutes-59 cases).


RESULTS
The digital technique provided better information concerning the renal parenchyma, the soft tissues and bone structures. Contrast enhanced detail was demonstrated equally well by both systems. The two systems had similar sensitivity but digital radiography showed higher specificity.
Hundt
C
C
Dr. von Haunersches Kinderspital/Klinikum Innenstadt, Ludwig-Maximilians-Universität München.
Kohz
P
P
Leinsinger
G
G
Fink
U
U
Schätzl
M
M
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003287:Contrast Media / Q000008:administration & dosage; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D008163:Luminescent Measurements; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011786:Quality Control; D012372:ROC Curve; D011856:Radiographic Image Enhancement / Q000379:methods* / Q000592:standards; D014567:Urography / Q000379:methods* / Q000592:standards; D014963:X-Ray Intensifying Screens / Q000592:standards
D003287:Contrast Media
Diagnostische Wertigkeit digitaler und konventioneller Bildgebung bei intravenöser Urographie.