INTRAVASCULAR ULTRASOUND VERSUS ANGIOGRAPHY FOR MEASUREMENT OD LUMINAL DIAMETERS IN NORMAL AND DISEASED CORONARY-ARTERIES
INTRAVASCULAR ULTRASOUND VERSUS ANGIOGRAPHY FOR MEASUREMENT OD LUMINAL DIAMETERS IN NORMAL AND DISEASED CORONARY-ARTERIES
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DOI：
10.1016/0002-8703(94)90110-4
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发表时间：
1994-02-01
影响因子：
4.8
通讯作者：
PIESSENS, J
中科院分区：
文献类型：
--
作者：
DESCHEERDER, I;DEMAN, F;PIESSENS, J
对48例行冠状动脉成形术的患者，采用20 MHz机械旋转血管内超声（IVUS）导管与采用半自动边缘检测算法的正交视点血管造影进行了冠状动脉腔径定量比较。对196个匹配片段进行了定量比较，但只有174个（88.8%）可以直接比较两种技术。在血管造影正常的46段冠状动脉中，定量冠状动脉造影（QCA）与IVUS的相关性极好（r = 0.92, p < 0.0001）。对于轻度狭窄（80节段），相关系数仅为一般（r = 0.467, p < 0.001）。经皮冠状动脉腔内成形术后IVUS与QCA（48节段）的相关系数很弱（r = 0.282, p < 0.05）。综上所述，冠状动脉IVUS是可行和安全的，即使在冠状动脉狭窄的有限范围内，IVUS和QCA测量的最小管腔直径之间存在显著相关性。在正常冠状动脉中表现优异，在轻度病变冠状动脉中表现中等，球囊血管成形术后表现较弱。
Quantitation of coronary luminal diameter with a 20 MHz mechanically rotating intravascular ultrasound (IVUS) catheter was compared with orthogonal-view cineangiography by use of a semiautomated edge-detection algorithm in 48 patients undergoing coronary angioplasty. Quantitative comparison of 196 matched segments was attempted, but in only 174 (88.8%) was a direct comparison of the two techniques possible. In angiographically normal coronary arteries (46 segments) the correlation between the values obtained by quantitative coronary angiography (QCA) and those achieved by IVUS was excellent (r = 0.92, p < 0.0001). For mild stenoses (80 segments) the correlation coefficient was only fair (r = 0.467, p < 0.001). After percutaneous transluminal coronary angioplasty the correlation coefficient between IVUS and QCA data (48 segments) was very weak (r = 0.282, p < 0.05). In conclusion, coronary IVUS is feasible and safe and even for a limited range of coronary arterial narrowing, significant correlations between IVUS and QCA measurements of minimal lumen diameter were found. They were excellent in normal coronary arteries, moderate in mildly diseased arteries, and weak after balloon angioplasty.