Analysis of the consistency between CTA and DSA in evaluating GLASS staging of chronic limb-threatening ischemia
10.3969/j.issn.1008-794X.2024.03.014
- VernacularTitle:CTA与DSA评估慢性肢体威胁性缺血患者全球肢体解剖学分期系统分期的一致性分析
- Author:
Yaqing HAN
1
;
Ningning DING
;
Li ZHOU
;
Yuling CUI
;
Cuilin YIN
;
Zhe LIU
;
Jian YANG
;
Yamin LIU
;
Yan MENG
Author Information
1. 710061 陕西西安 西安交通大学第一附属医院医学影像科
- Keywords:
global limb anatomic staging system;
lower extremity arteriosclerosis occlusion disease;
computed tomography angiography;
digital subtraction angiography
- From:Journal of Interventional Radiology
2024;33(3):300-303
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the consistency between computer tomography angiography(CTA)and digital subtraction angiography(DSA)in evaluating the global limb anatomic staging system(GLASS)stage of patients with chronic limb-threatening ischemia(CLTI).Methods The clinical data of patients with CLTI,who were admitted to the First Affiliated Hospital of Xi'an Jiaotong University of China to receive treatment between January 2017 and December 2020,were retrospectively analyzed.Taking the DSA assessment as the gold standard,the consistency of CTA and DSA in evaluating the GLASS stage of patients with CLTI was analyzed.Results In the assessment of GLASS stage of CLTI,CTA showed strong agreement with DSA.The weighted Kappa coefficient of CTA and DSA for the staging of femoropopliteal segment was 0.798(95％CI=0.722-0.873,P＜0.01),and the weighted Kappa coefficient of CTA and DSA for the staging of infrapopliteal artery segment was 0.785(95％ CI=0.725-0.845,P＜0.0l).For the overall staging of GLASS,the weighted Kappa coefficient of CTA and DSA was 0.832(95％ CI=0.752-0.91 1,P＜0.01).All the above results indicated that a very strong consistency existed between CTA and DSA in evaluating the GLASS stage of patients with CLTI.Conclusion CTA examination of lower limb can accurately evaluate GLASS score and stage of CLTI patient's target lesions,which is helpful in diagnosing lower extremity arteriosclerosis occlusion disease as well as in assessing the technical difficulty degree of its revascularization operation.(J Intervent Radiol,2024,33:300-303)
