Whiteley M S, Harris R A, Horrocks M
Department of Surgery, Royal United Hospital, Bath, U.K.
Eur J Vasc Endovasc Surg. 1995 Aug;10(2):192-7. doi: 10.1016/s1078-5884(05)80111-x.
Currently colour flow Duplex examination of the iliac arteries is at best 84-92% sensitive. In an attempt to find a technique to improve on this sensitivity we have studied the effect of Klean Prep, an iso-osmotic bowel preparation, on the Duplex image and Doppler signal obtained when scanning iliac arteries.
Twenty iliac segments in 10 arteriopaths were scanned by a blinded observer, after either starving for 12 h or having Klean Prep bowel preparation. Grey scale image, colour mapping and Doppler signal to noise ratios were scored on a linear analogue system. Each patient was subsequently rescanned after the other method of preparation and was once again scored by a blinded observer. The two sets of scores were then compared.
We found significant improvements in the linear analogue scoring of grey scale images, colour mapping and Doppler signal to noise ratios, when using Klean Prep as opposed to starving the patient prescan.
Preparing patients with Klean Prep before iliac Duplex examination improves the visualisation of these arteries.
目前，髂动脉的彩色血流双功检查敏感性最高为84% - 92%。为了找到一种提高这种敏感性的技术，我们研究了等渗肠道准备剂Klean Prep对扫描髂动脉时获得的双功图像和多普勒信号的影响。
10名动脉病患者的20个髂动脉节段，由一名不知情的观察者进行扫描，扫描前患者要么禁食12小时，要么进行Klean Prep肠道准备。在一个线性模拟系统上对灰度图像、彩色映射和多普勒信号噪声比进行评分。随后，对每位患者采用另一种准备方法后再次进行扫描，并再次由一名不知情的观察者进行评分。然后比较两组评分。
我们发现，与扫描前让患者禁食相比，使用Klean Prep时，灰度图像、彩色映射和多普勒信号噪声比的线性模拟评分有显著改善。
在髂动脉双功检查前用Klean Prep对患者进行准备，可改善这些动脉的可视化效果。
