CTA血管成像扫描技术在颅内动脉瘤诊断中临床应用价值.docVIP

CTA血管成像扫描技术在颅内动脉瘤诊断中的临床应用价值 　　[摘要]目的 探讨CTA成像扫描技术在颅内动脉瘤诊断中的临床应用价值。方法 选取我院2015年1月～2016年6月的200例可疑颅内动脉瘤引起蛛网膜下腔出血患者作为研究对象，均行CTA检查。图像处理采用最大密度投影（MIP）、容积重建（VR）、曲面重组（VR）及多层重建（MPR），以动脉瘤夹闭术结果作为诊断动脉瘤的标准。结果 200例患者中，CTA检查后195例检出动脉瘤，动脉瘤夹闭术证实190例动脉瘤，4例为假阴性，1例为假阳性。DSA检查出189例动脉瘤，5例假阴性，1例假阳性。CTA发现颅内动脉瘤的敏感度为97.4%，特异度为83.3%，阳性预测值为99.5%，阴性预测值为55.6%，准确度为97.5%。对照组DSA检查颅内动脉瘤的敏感度为96.9%，特异度为83.3%，阳性预测值为99.5%，阴性预测值为50.0%，准确度为97.5%。结论 头颈部CTA检查在颅内动脉瘤诊断方面具有快速、安全、无创、有效等特点，可以作为临床筛查颅内动脉瘤的首选方法 [关键词]CTA血管成像技术；颅内动脉瘤；血管造影术；蛛网膜下腔出血；应用价值 [中图分类号] R743.9 [文献标识码] A [文章编号] 1674-4721（2016）09（b）-0103-03 [Abstract]Objective To explore the clinical application value of CTA vascular imaging scanning technology in the diagnosing of cerebral aneurysms.Methods 200 cases of subarachnoid hemorrhage caused suspected cerebral aneurysm in our hospital from January 2015 to June 2016 were selected and conducted CTA examination.Image post-processing methods included maximum intensity projection （MIP），volume rendering （VR），curved reformat （CR） and multi-planar reformats （MPR），and arterial aneurysm clipping surgery was regarded as diagnostic criterion for aneurysm.Results 200 cases of paitients with CTA examination showed 195 aneuruysms，190 aneurysms were confirmed by aneurysm clipping operation，4 cases of false negative，1 case of false-positive.DSA examination showed 189 cases of aneuruysm，5 cases of false negative，1 case of false-positive.The sensitivity，specificity，positive predictive value，negative predictive value and accuracy of CTA in cerebral aneurysms diagnosis was 97.4%，83.3%，99.5%，55.6%，and 97.5% respectively.The sensitivity，specificity，positive predictive value，negative predictive value and accuracy of the control group of DSA in cerebral aneurysms diagnosis was 96.9%，83.3%，99.5%，50.0%，and 97.5% respectively.Conclusion Head and neck CTA examination in the diagnosis of cerebral aneurysms is fast，safe，non-invasive，effective and so on，which can be used as the first choice for clinical screening of cerebral ane