Giudici L, Costato C, Ricci-Barbini V
Divisione di Urologia, USSL n. 9, Ospedale di Saronno.
Arch Ital Urol Nefrol Androl. 1991 Jun;63 Suppl 2:69-71.
Dynamic transrectal echography is the primary method to evaluate bladder neck diseases during micturition for its safety, noninvasiveness and excellent imaging. In order to find some features for every kind of disease, we have examined 32 patients with BPH, Carcinoma, Marion disease and also evaluated the morphological images after prostate surgery. Enlargement of the prostate gland may restrict the urethral lumen and deviate its intra-prostate way, such that the urethra can't be allocated in one sagittal echographic plane. The third lobe, when it exists, can act like a valve against the urine flow. Prostate carcinoma, at first, can be asymptomatic on urodynamic study. Urethral invasion and its organic stenosis is shown by a very thin, longer and irregular profiles. Bladder neck sclerosis is an unusual disease, but its diagnosis can be easy if a posterior "beak" at internal meatus level, urethral dilatation after stenosis and positive Stop-Test exist. After surgery, one can observe full relaxation of the internal sphincter and the voluntary skeletal sphincter, located at the level of the membranous urethra, providing itself a continence mechanism.
动态经直肠超声检查因其安全性、无创性和出色的成像效果，是排尿期评估膀胱颈疾病的主要方法。为了找出每种疾病的一些特征，我们检查了32例良性前列腺增生症、癌、马里恩病患者，并对前列腺手术后的形态图像进行了评估。前列腺增大可能会限制尿道腔并使其在前列腺内的走行发生偏移，导致尿道无法在一个矢状超声平面上显示。第三叶若存在，可起到阻挡尿液流动的瓣膜作用。前列腺癌起初在尿动力学研究中可能无症状。尿道侵犯及其器质性狭窄表现为非常细、较长且不规则的形态。膀胱颈硬化是一种不常见的疾病，但如果在尿道内口水平出现后“喙”、狭窄后尿道扩张以及阳性的停止试验，则其诊断并不困难。手术后，可以观察到位于膜部尿道水平的内括约肌和随意性骨骼肌括约肌完全松弛，这本身就提供了一种控尿机制。
