摘要
目的探讨64排螺旋CT冠状动脉成像评价冠状动脉支架通畅性的临床应用价值。方法对62例冠状动脉支架置入术后患者的86枚支架行64排螺旋CT扫描,对照冠脉造影检查结果,评价64排螺旋CT在冠脉支架术后再狭窄的诊断价值。结果针对62例患者置入的86枚支架进行了以冠脉造影为"金标准"的诊断试验评价,无创冠状动脉造影(冠脉CTA)对冠脉支架内再狭窄的诊断的敏感度、特异度、阳性预测值、阴性预测值分别为88.9%、98.6%、66.7%和98.6%。结论冠脉CTA对冠脉支架内再狭窄患者有高的阴性预测值,可应用于冠脉支架术后随访。
Objective This study sought to analysis of coronary binary percutaneous coronary intervention （PCI） with angiography using 64-slice muhislice computed tomography angiography （MSCTA） compared with invasive coronary angiography （CAG）.Back ground A noninvasive detection of would result in an easier and safer way to conduct patient follow-up. Methods We performed MSCTA in 62 patients after stent implantation, and 86 stented lesions were scanned. Two sets of images were reconstructed with different types of convolution kernels. The diagnostic accuracy of MSCTA compared with CAG was evaluated. Results By MSCTA, 8 in-stent restenosis（ISR） were diagnosed. Sensitivity, specificity, positive predictive value, and negative predictive value were 88.9%, 98.6%, 66.7%, and 98.6% for the overall stents. Four lesions without ISR were overestimated as ISR by MSCTA. Conclusion ISR can be excluded with high probability by MSCTA, with a moderate rate of false-positive results.
出处
《中国心血管病研究》
CAS
2008年第4期249-251,共3页
Chinese Journal of Cardiovascular Research
基金
新疆维吾尔自治区创新群体基本介入心脏病学的基础研究与临床应用(XJEDU2005G03)
