Messelink E J, Dabhoiwala N F, Vrij V, Verbeek F J, Kurth K
Department of Urology, Academic Hospital, University of Amsterdam, The Netherlands.
Tech Urol. 1996 Fall;2(3):159-64.
Endoluminal ultrasound (ELUS) with high-frequency transducers is a new technique for imaging tubular structures. In combination with a rotating mirror, 360 degrees cross-sectional images of the wall can be obtained. Because of the high frequency, the axial resolution is much higher and thus more detail can be seen. In the study reported in this article, ELUS was performed to image the wall of the female pig urethra to see whether cross-sectional images obtained by ELUS could be correlated with anatomic cross sections of the urethra. Commercially available transducers with a frequency of 30 and 20 MHz were used, the latter having the best suitable frequency for this procedure. The images were of high quality and the different anatomic layers could be clearly visualized. The mucosa/submucosa, the external sphincter, and the surrounding serosa were all identifiable. The correct interpretation was also confirmed by histological cross-section study. We believe that endoluminal ultrasound is a very promising technique for imaging the urethra. Further studies need to be conducted to improve the catheters for urological use and to develop the clinical usefulness of this technique.
使用高频换能器的腔内超声（ELUS）是一种用于对管状结构成像的新技术。结合旋转镜，可以获得管壁的360度横截面图像。由于频率高，轴向分辨率更高，因此可以看到更多细节。在本文报道的研究中，进行了腔内超声检查以对雌性猪尿道壁成像，以观察通过腔内超声获得的横截面图像是否与尿道的解剖横截面相关。使用了频率为30和20MHz的市售换能器，后者具有最适合此程序的频率。图像质量很高，不同的解剖层可以清晰地可视化。粘膜/粘膜下层、外括约肌和周围的浆膜都可以识别。组织学横截面研究也证实了解释的正确性。我们认为腔内超声是一种非常有前景的尿道成像技术。需要进一步开展研究以改进泌尿外科用导管，并开发该技术的临床应用价值。
