Pullan B R, Phillips J I, Hickey D S
Br J Urol. 1982 Aug;54(4):399-407. doi: 10.1111/j.1464-410x.1982.tb08953.x.
This report shows that the urethral lumen cross-sectional shape is complex but slit-like and it is suggested that this shape is related to function. A radiological method for determining urethral shape during micturition has been developed and compared with histological studies. The lumen is markedly non-circular even during micturition. Simple theoretical analysis of preliminary shapes shows that current concepts of urethral flow are incomplete and urethral pressure profile measurements require re-evaluation. The function of accepted sphincter mechanisms requires a slit-like lumen. Lumen shape is a fundamental property of the urethra, the clinical importance of which has yet to be explored.
本报告显示，尿道管腔的横截面形状复杂但呈裂隙状，且表明这种形状与功能相关。已开发出一种用于确定排尿时尿道形状的放射学方法，并与组织学研究进行了比较。即使在排尿期间，管腔也明显不是圆形的。对初步形状的简单理论分析表明，当前关于尿道流动的概念并不完整，尿道压力分布测量需要重新评估。公认的括约肌机制的功能需要裂隙状的管腔。管腔形状是尿道的一个基本特性，其临床重要性尚待探索。
