Staging of bladder carcinoma: MRI-CT-surgical correlation.
Eleven patients with transitional cell carcinoma of the bladder were examined with spin-echo MRI using a superconductive magnet operating at a field strength of 0.35 T. MRI results were compared with the CT findings in 10 of the patients. All subjects later underwent radical cystectomy including pelvic lymph-node dissection. MRI accuracy for staging was 64% using the TNM classification and 73% by the Jewett-Strong-Marshall system while CT accuracy was 40%. MRI provided improved demonstration of tumor invasion of perivesical fat planes, prostate, and seminal vesicles and greater anatomic detail was afforded by direct sagittal and coronal views.
D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D003951:Diagnostic Errors; D006801:Humans; D008197:Lymph Node Excision; D008207:Lymphatic Metastasis; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011471:Prostatic Neoplasms / Q000175:diagnosis; D014057:Tomography, X-Ray Computed; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery