Diagnostic value of bladder tumors by excretory urography
Journal of the Korean Radiological Society
Bladder tumors initially may be diagnosed by excretory urography In this study, 60 excretory urograms inciuding 40 cases of biopsy proved bladder tumor and 20 cases of cystoscopically normal bladder were analyzed Five experienced readers reviewed five radiographs of each case The resul ts were as follows: 1 . Male to female ratio was 5.7 :1 , and the highest incidence of age distribution was between 60 and 69 year with 48% 2. The tumors were chi efly located in lateral wall of bladder. (67%) 3
... f bladder. (67%) 3 . Among 40 cases, pathologic diagnosis was as follows: Transitional cell ca. 39 cases, and sq uamous cell ca. lcase. 4. Th e I.V.P. finding showed 82% of normal upper urinary tract, 13% of hydronephrosis, 5% of non'visuali zation, and 58% of filling defect in bladder O riginal interpretation of urogram was as follows Of 40 cases with bladder ca., 45% as positive, 13% as suspicious, and 38% as negative Of 20 cases with normal, 95% as regative, and 5% as postive 6. Analysis by this study was as follows: Accuracy 68%, sensitivity 62%, specificity 80%, false positive rate 38%, and fa lse negative rate 20% 7 . 25 min A-P radiograph was most val uable pr이 ection , and oblique pr이 ection did not significantly increase sensitivity .