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目的 探讨螺旋CT血管造影 (SCTA)对主动脉夹层的诊断价值。方法 对 43例经手术证实的主动脉夹层患者临床资料进行研究 ,对照手术结果评价SCTA对诊断主动脉夹层、并发症以及分型的准确性 ,并与磁共振血管造影 (MRA)、X线血管造影(XRA)包括DSA、彩色超声包括经胸超声 (TTE)和经食管超声 (TEE)等影像诊断结果进行比较。结果 SCTA、MRA、XRA、TTE、TEE对主动脉夹层的诊断率分别为 10 0 %、10 0 %、92 .3 %、87.5 %、10 0 % ;分型准确率SCTA、MRA、XRA、TTE分别为 95 .3 %、93 .6%、92 .3 %、81.3 % ;SCTA分辨率高 ,对主动脉夹层诊断和分型的准确率均在 95 %以上 ,且以扫描快、图像直观、不受金属植入物及病重的限制、微创而较其它影像检查应用更广泛。结论 SCTA对主动脉夹层的诊断、分型、数据测定、术前模拟、术后随访等综合方面较其他影像诊断有明显的优势 ,应用范围更广 ,可作为主动脉夹层诊断的首选
Objective To investigate the diagnostic value of spiral CT angiography (SCTA) in aortic dissection. Methods The clinical data of 43 patients with aortic dissection confirmed by surgery were studied. The results of SCTA were compared with the accuracy of SCTA in diagnosing aortic dissection, complications and typing, and were compared with those of magnetic resonance angiography (MRA), X-ray Radiographs (XRA) include DSA and color ultrasound including diagnostic imaging of transthoracic (TTE) and transesophageal (TEE). Results The diagnostic rates of SCTA, MRA, XRA, TTE and TEE in aortic dissection were 100%, 100%, 92.3%, 87.5%, 100% Respectively, 95.3%, 93.6%, 92.3%, 81.3%; SCTA high resolution, diagnostic accuracy and classification of aortic dissection were 95% or more, and to scan quickly, the image is intuitive, Free from metal implants and serious limitations, minimally invasive and more than other imaging applications. Conclusion SCTA has obvious advantages over other imaging modalities in diagnosis, classification, data determination, preoperative simulation and postoperative follow-up of the aortic dissection, so it can be used as the first choice of diagnosis of aortic dissection