الفهرس 
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Abstract
Radiologic evaluation of the urinary bladder has undergone progressive changes as a consequence of rapid technologic advances. Excretory urography had been the most commonly used radiographic examination to detect and characterize bladder wall abnormalities. Sonography and computed tomography have improved the demonstration of bladder wall abnormalities. Now, magnetic resonance imaging has opened a new horizon in the evaluation of the urinary bladder. It is direct multiplanner imaging and high soft tissue contrast allow better demonstration of the urinary bladder anatomy. This study included 30 patients, 27 males and 3 females. They were examined by CT, MR and pathology. CT and MR findings were analyzed and compared to the pathologic findings and operative data in 20 patients. MR was superior over CT in detection presence or absence of tumors, perivesical fat infiltration, prostatic and seminal vesicles infiltration due to its superior soft tissue contrast, multipulse sequences and multiplanner capabilities.