不同CT图像后处理技术联合应用在主动脉夹层诊断中的效能  

Efficiencies of combined examination of different CT image post-processing techniques in diagnosis of aortic dissection

作　　者：李雪蕊 LI Xuerui(Department of Intervention of the Second Affiliated Hospital of Nanyang Medical College,Affiliated Hospital of Chinese Traditional Medicine of Nanyang Medical College,Nanyang 473000 Henan,China)

机构地区：[1]南阳医学高等专科学校第二附属医院南阳医专附属中医院介入科,河南南阳473000

出　　处：《中国民康医学》2024年第5期114-116,共3页Medical Journal of Chinese People’s Health

摘　　要：目的:分析不同CT图像后处理技术联合应用在主动脉夹层(AD)诊断中的效能。方法:选取2019年8月至2021年8月该院收治的196例疑似AD患者进行前瞻性研究,患者入院后均行CT、磁共振成像(MRI)检查和AD分型评估,以MRI检查结果为“金标准”,比较不同CT图像后处理技术[多平面重建(MPR)、容积再现(VR)、曲面重建(CPR)]单项及联合应用在AD诊断中的效能及对AD分型的检出率。结果:196例疑似AD患者,MRI检查诊断阳性142例(其中Ⅰ型25例,Ⅱ型33例,Ⅲ型84例),阴性54例;MPR诊断阳性118例,阴性78例;VR诊断阳性102例,阴性94例;CPR诊断阳性124例,阴性72例;MPR、VR联合CPR诊断阳性139例,阴性57例;MPR、VR联合CPR诊断AD的灵敏度、准确度、阴性预测值均高于三者单项应用,漏诊率低于三者单项应用,差异有统计学意义(P<0.05);MPR、VR联合CPR对Ⅱ、Ⅲ型AD的检出率最高,且其高于MPR、VR单项应用,差异有统计学意义(P<0.05)。结论:MPR、VR联合CPR诊断AD的效能高于三者单项应用。Objective:To analyze efficiencies of different CT image post-processing techniques in the diagnosis of aortic dissection(AD).Methods:A prospective study was conducted on 196 patients with suspected AD admitted to the hospital from August 2019 to August 2021.All patients underwent CT,magnetic resonance imaging(MRI)examination and AD classification evaluation after admission.Using the MRI results as the‘gold standard’,the efficiencies of different CT image post-processing techniques[multi-plane reconstruction(MPR),volume rendering(VR),surface reconstruction(CPR)]in the diagnosis of AD and the detection rates of AD classification were compared.Results:Among the 196 patients with suspected AD,142 cases were diagnosed as positive by MRI(25 cases of type I,33 cases of type II,84 cases of type III),and 54 cases were negative.MPR examination showed 118 positive cases and 78 negative cases.VR examination diagnosed 102 cases positive and 94 cases negative.CPR showed 124 positive cases and 72 negative cases.The combined examination of MPR,VR and CPR diagnosed 139 cases positive and 57 cases negative.The sensitivity,accuracy and negative predictive value of MPR,VR and CPR combined examination in the diagnosis of AD were higher than those of the three single examinations,the missed diagnosis rate was lower than that of the three single examinations,and the differences were statistically significant(P<0.05).The detection rate of MPR,VR and CPR combined examination for type II and III AD was the highest,it was higher than that of MPR and VR single examination,and the differences were statistically significant(P<0.05).Conclusions:The efficiency of combined examination of MPR,VR and CPR in the diagnosis of AD is higher than that of single examination of the three.

关 键 词：CT 后处理技术 多平面重建 容积成像 曲面重建 主动脉夹层 效能 

分 类 号：R445.3[医药卫生—影像医学与核医学]