排尿時膀胱尿道造影

概要

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Micturating cystourethrography is the indispensable technique for the examination of the lower urinary tract. If the process of voiding is observed fluoroscopically, and sequential spot films are taken in an oblique or lateral position, the functional and anatomical changes caused by even minor lesions of the bladder and urethra could be demonstrated. Firstly to simplify the various roentgenographic shapes of bladder outlet disorder, secondary to transfer the roentgenographic data easily to computer storage, we have been trying to divide micturating cystourethrogram, documented at the peak flow, into five basic patterns. These are (1) normal (2) bladder neck obstruction or opening insufficiency (3) dilated posterior urethra with collar response of bladder neck, "spinning top" configuration (4) dilated posterior urethra without bladder neck responses, "wide bladder neck" (5) normal urethra, but hypoplastic trigone with or without bladder base descent. In this presentation, these five patterns were matched with the other urodynamic investigations in each clinical cases, and the diagnostic implications and problems of micturating/voiding cystourethrography were discussed.
泌尿器科紀要刊行会の論文