Retrospective image-based gating of intracoronary ultrasound images for improved quantitative analysis: The intelligate method
Retrospective image-based gating of intracoronary ultrasound images for improved quantitative analysis: The intelligate method
复制标题
DOI：
10.1002/ccd.10693
复制
发表时间：
2004-01-01
影响因子：
2.3
通讯作者：
Bruining, N
中科院分区：
文献类型：
--
作者：
de Winter, SA;Hamers, R;Bruining, N
冠状动脉内超声（ICUS）研究的定量分析是在机动0.5 mm/sec导管回撤期间采集的一系列断层扫描横截面ICUS图像上进行的。心动周期期间血管腔内的导管位移导致解剖学上的ICUS研究混乱，这导致定量冠状动脉超声软件包中纵向重建视图中冠状动脉段的锯齿形外观。这阻碍了轮廓检测，并导致一个费力耗时的半定量分析过程，可能会产生不准确的结果。为了解决这些问题，在过去，在线心电门控采集硬件已被应用。本文介绍了一种新的基于图像的门控方法，称为智能，其功能是自动回顾性选择舒张末期帧从录像或数字存储的ICUS研究。我们的评价表明，硬件ECG门控和智能ICUS研究的分析结果之间没有定量差异。(C)2004 Wiley-Liss，Inc.
Quantitative analysis of intracoronary ultrasound (ICUS) studies is performed on a series of tomographic cross-sectional ICUS images acquired during a motorized 0.5 mm/sec catheter pullback. Catheter displacement in the vascular lumen during the cardiac cycle causes an anatomically shuffled ICUS study, which results in a sawtooth-shaped appearance of the coronary segment in longitudinal reconstructed views in quantitative coronary ultrasound software packages. This hampers contour detection and leads to a laborious time-consuming semiquantitative analysis process that may produce inaccurate results. To solve these problems, in the past, online ECG-gated acquisition hardware has been applied. This article describes a novel image-based gating method called Intelligate, which features automatic retrospective selection of end-diastolic frames from videotaped or digitally stored ICUS studies. Our evaluation shows that there are no quantitative differences between analysis results of hardware ECG-gated and Intelligated ICUS studies. (C) 2004 Wiley-Liss, Inc.