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逆行尿道造影为诊断和处理尿道狭窄最常用的方法,其难以准确地判定狭窄的长度和瘢痕形成的深度。作者对17例尿道狭窄患肯采用逆行尿道超声检查,取得良好的结果。将一根12F气囊导尿管留置于远端尿道,气囊注入2ml无菌液体,起固定和封闭作用。先经尿管注入15—20ml造影剂行常规尿道造影,然后将藕合剂涂于阴茎背侧皮肤。采用电子线阵超声探头,频率5.0MH_2。向尿管缓慢注X10—15ml无菌液体以充盈尿道,沿阴茎表面和阴囊会阴部多次横切和纵切扫查,确定狭窄的部位和长度,并注意狭窄处瘢痕纤维化的程度。整个扫查约需10分钟。狄窄段短于1cm者为局限性狭窄,大于1cm以上者为长段狭窄;狭窄小于邻近正常尿道直径1/3者为轻度,1/3—1/2间为中度,大于1/2者为重度。接受尿道超声检查17例共20处尿道狭窄。3处
Retrograde urethrography is the most common method of diagnosis and management of urethral stricture, which is difficult to accurately determine the length of the stenosis and the depth of scar formation. The author of 17 cases of urethral stricture is willing to use retrograde urethral ultrasonography, and achieved good results. A 12F balloon catheter placed in the distal urethra, balloon injection of 2ml sterile liquid, play a fixed and closed role. The first injection of 15-20ml catheter urine routine routine urethroplasty, and then the coupling agent applied to the penis dorsal skin. Using electronic linear ultrasonic probe, frequency 5.0MH_2. To the catheter slowly inject X10-15ml sterile liquid to fill the urethra, along the penis surface and scrotal perineum multiple transection and longitudinal scanning to determine the stenosis of the site and length, and pay attention to the degree of stenosis scar fibrosis. The entire scan takes about 10 minutes. Di narrow section of less than 1cm were limited stenosis, more than 1cm for the long segment of the stenosis; stenosis less than the proximal normal urethral diameter 1/3 were mild, 1 / 3-1 / 2 was moderate, greater than 1 / 2 are severe. There were 20 urethral strictures in 17 cases undergoing urethral ultrasonography. 3 places