Multi-detector row computed tomographic angiography in pediatric heart transpiant recipients: Initial observations
Multi-detector row computed tomographic angiography in pediatric heart transpiant recipients: Initial observations
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DOI：
10.1097/01.tp.0000112437.07994.46
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发表时间：
2004-02-27
期刊：
影响因子：
6.2
通讯作者：
Canter, CE
中科院分区：
文献类型：
--
作者：
Bae, KT;Hong, C;Canter, CE
背景。本研究的目的是评估多排计算机断层扫描 (MDCT) 成像用于评估儿童心脏移植患者冠状动脉的可行性和局限性。方法。对 8 名儿童心脏移植受者进行了冠状动脉 MDCT 血管造影。评估冠状动脉钙化的存在。将 AMCT 图像上可视化冠状动脉节段的管腔变化与导管血管造影结果和血管内超声结果进行比较。一名经血管内超声检查患有严重冠状动脉病变的患者存在冠状动脉钙化。在 MDCT 图像上显示的 48 个冠状动脉节段中，分别有 33 个、7 个节段和 4 个节段具有正常的管腔不规则性和中度狭窄，这些都通过导管血管造影证实。由于严重的运动伪影，无法评估十二个冠状动脉节段。心率较高的患者图像质量下降更为明显。结论。无创 MDCT 血管造影前景广阔，但需要进一步改进技术来评估儿童心脏移植患者的冠状动脉。
Background. The purpose of this study was to assess the feasibility and limitation of multi-detector row computed tomographic (MDCT) imaging for evaluating coronary arteries in pediatric heart transplant patients.Methods. Coronary MDCT angiography was performed in eight pediatric heart transplant recipients. The presence of coronary calcification was evaluated. Luminal changes of the visualized coronary segments on AMCT images were compared with catheter angiographic findings and intravascular ultrasound.Results. Coronary calcification was present in one patient who had severe coronary arteriopathy documented by intravascular ultrasound. In 48 coronary segments visualized on MDCT images, 33, 7, and 4 segments each had normal luminal irregularities, and moderate stenoses, respectively, which were confirmed by catheter angiography. Twelve coronary segments could not be assessed because of severe motion artifacts. Image quality degradation was more pronounced in patients with higher heart rates.Conclusions. Noninvasive MDCT angiography is promising but requires further technical improvement to evaluate coronary arteries in pediatric heart transplant patients.