CAJ | 학술논문

目的：探讨头颈部动脉夹层（CAD）多层CT血管成像（MSCTA）表现及其临床应用价值。方法：对经DSA证实的35例CAD患者的临床及 MSCTA资料进行回顾性分析。结果：35例患者共累及38支血管，3例患者病变累及2支血管段。其中颈内动脉系统夹层22支（57．9％），椎基底动脉系统16支（42．1％）。双腔征（27支）、珠线征（11支）、锥状闭塞（8支）、瘤样扩张（13支）、内膜瓣（2支）是CAD 特征性 MSCTA 表现。以DSA 结果为标准，MSCTA 诊断头颈部动脉夹层的敏感度为97．4％，特异度为99．1％，阳性预测值为92．5％，阴性预测值为99．7％，符合率为99．0％。结论：MSC-TA对头颈部动脉夹层的诊断具有较高的敏感性和特异性，可以作为评价头颈部动脉夹层的首选无创性检查手段。
목적：탐토두경부동맥협층（CAD）다층CT혈관성상（MSCTA）표현급기림상응용개치。방법：대경DSA증실적35례CAD환자적림상급 MSCTA자료진행회고성분석。결과：35례환자공루급38지혈관，3례환자병변루급2지혈관단。기중경내동맥계통협층22지（57．9％），추기저동맥계통16지（42．1％）。쌍강정（27지）、주선정（11지）、추상폐새（8지）、류양확장（13지）、내막판（2지）시CAD 특정성 MSCTA 표현。이DSA 결과위표준，MSCTA 진단두경부동맥협층적민감도위97．4％，특이도위99．1％，양성예측치위92．5％，음성예측치위99．7％，부합솔위99．0％。결론：MSC-TA대두경부동맥협층적진단구유교고적민감성화특이성，가이작위평개두경부동맥협층적수선무창성검사수단。
Objective:To investigate the imaging features of multi-slice spiral CT angiography and their diagnostice value in cervicocerebral arterial dissection.Methods:Thirty-five patients with cervicocerebral arterial dissection confirmed by DSA were analyzed on clinical data and imaging features of multi-slice spiral CT angiography and DSA.The results of those two methods were compared.Results:35 patients had cervicocerebral arterial dissection involving 38 blood vessels,of which 22 (57.9%)lesions were located in the internal carotid artery and 16 (42.1%)lesions in the vertebrobasilar artery.The pa-thognomonic features consisted of double lumen,string sign,blunt occlusion,aneurysmatic expansion and intimal flap.Com-pared with digital subtraction angiography,the sensitivity of multi-slice spiral CT angiography for cervicocerebral arterial dissection was 97.4%,the specificity was 99.1%,the positive predictive value was 92.5%,the negative predictive value was 9 9 .7%,and the accuracy was 9 9 .0%.Conclusion:The results suggest that multi-slice spiral CT angiography has high sensitivity,specificity and accuracy.It can be an important non-invasive diagnositic method for evaluating cervicocerebral ar-terial dissection.