Whiteley M S, Fox A D, Harris R A, Horrocks M
Department of Surgery, Royal United Hospital, Combe Park, Bath, U.K.
Eur J Vasc Endovasc Surg. 1998 Mar;15(3):261-6. doi: 10.1016/s1078-5884(98)80188-3.
Iso-osmotic bowel preparation (Klean Prep) improves the accuracy of iliac duplex examination and reduces the time of each examination. Full-dose Klean Prep entails 4 l of fluid. We studied the effect of 2 l of Klean Prep (half-dose) and Picolax on image quality.
Prospective study comparing clarity of duplex examination after three different bowel preparation regimes with that after 12 h starvation.
Thirty patients underwent iliac duplex examination after 12 h starvation. Scans were scored subjectively for grey scale and colour image quality, and Doppler signal-to-noise ratio. Patients were allocated blindly to: (a) full-dose Klean Prep, (b) half-dose Klean Prep, or (c) Picolax. After out-patient preparation, the scan was repeated and scored by the same observer, blinded to the preparation.
Both full- and half-dose Klean Prep produced significant improvements in image quality for all three modalities; Picolax produced minimal change. There was minimal advantage of full-dose over half-dose Klean Prep. Patients preferred half-dose Klean Prep to full-dose.
Klean Prep significantly improves the image obtained by iliac duplex examination; Picolax does not. Half-dose Klean Prep is an acceptable preparation to patients.
等渗肠道准备（Klean Prep）可提高髂动脉双功超声检查的准确性并缩短每次检查的时间。全剂量Klean Prep需要4升液体。我们研究了2升Klean Prep（半剂量）和聚乙二醇电解质散对图像质量的影响。
前瞻性研究，比较三种不同肠道准备方案后双功超声检查的清晰度与禁食12小时后的清晰度。
30例患者在禁食12小时后接受髂动脉双功超声检查。对扫描图像的灰阶和彩色图像质量以及多普勒信噪比进行主观评分。患者被随机分配至：（a）全剂量Klean Prep组，（b）半剂量Klean Prep组，或（c）聚乙二醇电解质散组。门诊准备后，由同一位观察者在不知准备情况的前提下重复扫描并评分。
全剂量和半剂量Klean Prep在所有三种检查方式下均显著改善了图像质量；聚乙二醇电解质散的效果微乎其微。全剂量Klean Prep相较于半剂量Klean Prep优势极小。患者更喜欢半剂量Klean Prep而非全剂量。
Klean Prep显著改善了髂动脉双功超声检查所获得的图像；聚乙二醇电解质散则不然。半剂量Klean Prep是患者可接受的肠道准备方法。
