Accuracy of CT staging of bladder neoplasms using the gas-filled method: report of 21 patients with surgical confirmation

Reliability of CT in Preoperative Evaluation of Bladder Carcinoma

“…Tumours were staged accord in g to the TNM cl assifi catio n . The findin gs in Cf were interpreted according to the crit eria found in the literature (14). Thmours of category T3a or lower were classi fi ed toget her.…”

“…However, the exact role of CT in staging h as not yet b een established . CT has bee n recommended for routine u se in all p atie nts with bla dd e r neo plasms (14) or in patients for whom cystectomy is planned (3) . On the other h and, CThas by som e bee n con sidered to have limited va lue (6) and o th e rs would not recommend it for routine u se on th e ground th at it is both a n expensive and an inaccurate method (7).…”

Abdominal Computed Tomography: Role in Nephrology

“…Computed tomography also appears valuable for de termining the extent to which renal and bladder malig nancies have spread [19,43,44], Management of such lesions usually involves several diagnostic and treatment procedures. Analyzing 14 major cost centers in 14 pa tients treated for renal carcinoma, Meaney et al [45] found CT the least variable expense item equaling only 1.6% of the total management cost.…”

“…Techniques such as distending the bladder with gas or diluted radio contrast material are described as helpful for staging bladder malignancies by CT [43,44], Using the former method, Seidelmann et al [43] recorded accu rate staging for 81% of bladder tumors. Overstaging occurred in 19% due to juxtaposition on the bladder of normal bowel or seminal vesicle.…”

Contrast-Enhanced Computed Tomography to Show Perivesical Extension in Bladder Carcinoma

“…SEIDEL-MANN et coli. (18) have used intravenous contrast media in CT to demonstrate the ureterovesical junction, which is a difficult region to demonstrate. HODSON et coil.…”