The value of spiral CT enhanced scan in the diagnosis of aortic dissection
主动脉夹层诊断中螺旋CT增强扫描的价值探讨

摘要

目的 对临床诊断主动脉夹层过程中多层螺旋CT的应用价值进行探讨。方法 以数字随机发选择2021年3月-2022年3月间来我院进行治疗的主动脉夹层患者40例为研究对象，所有患者入院后均进行CT平扫及增强扫描，对患者主动脉夹层多层螺旋CT状况进行分析，同时分析两组患者CT平扫、增强扫描、及处理后对内膜破口、内膜瓣及真假腔的显示状况。结果 40例入选患者其中13例DebakeyⅠ型、4例DebakeyⅡ型、10例DebakeyⅢ型以及13例DebakeyⅢB型。根据扫描结果可发现，在内膜破口显示方面，MPR的显示比例达到95%（38/40），与CT增强、VR、CT平扫等比较，显示率明显更高，差异显著，P<0.05；在内膜瓣显示方面MPR、CT增强扫描显示率都达到100%，明显高于CT平扫及VR，差异显著，P<0.05。在真假腔显示方面MPR、CT增强扫描显示率都达到100%，VR显示率为92.5%（32/40），且三者均明显高于CT平扫，差异显著，P<0.05。结论 多螺旋CT在主动脉夹层诊断中的应用可清晰的显示内膜破口、内膜瓣以及真假腔，从而提升分型准确性，在临床上具有极高应用价值。

Abstract

Objective To explore the application value of multi-slice spiral CT in the clinical diagnosis of aortic dissection.
Methods 40 patients with aortic dissection who came to our hospital for treatment from March 2021 to March 2022 were randomly selected as the study subjects. All patients were performed plain and enhanced CT scans after admission. The multi-slice spiral CT status of patients with aortic dissection was analyzed. At the same time, the plain and enhanced CT scans of the two groups of patients and the display status of endometrial rupture, endometrial valve and true and false lumen after treatment were analyzed.
Results Among the 40 selected patients, 13 were Debakey Ⅰ, 4 were Debakey Ⅱ, 10 were Debakey Ⅲ and 13 were Debakey Ⅲ B. According to the scanning results, the display rate of MPR reached 95% (38/40) in the display of intimal rupture. Compared with CT enhancement, VR and CT plain scan, the display rate was significantly higher, with a significant difference (P<0.05); The display rate of MPR and CT enhanced scan was 100%, significantly higher than that of CT plain scan and VR, with significant difference (P<0.05). In the display of true and false cavities, the display rate of MPR and CT enhanced scan was 100%, and the display rate of VR was 92.5% (32/40), and the three were significantly higher than that of CT plain scan, with significant difference (P<0.05).
Conclusion   The application of multi-slice CT in the diagnosis of aortic dissection can clearly show intimal rupture, intimal valve and true and false lumen, thus improving the accuracy of classification, and has high clinical application value.