Preliminary Study on Value of Carotid Artery Non-enhanced High-resolution MRI in Evaluating Carotid Stenosis in Patients Before Carotid Endarterectomy
10.3969/j.issn.1009-6604.2025.03.006
- VernacularTitle:颈动脉非增强高分辨MRI在颈动脉内膜切除术前患者颈动脉狭窄评估中价值的初步研究
- Author:
Jingchao FANG
1
;
Yuanyuan ZHENG
;
Lin WANG
Author Information
1. 北京大学第三医院放射科,北京 100191
- Publication Type:Journal Article
- Keywords:
Carotid stenosis;
Carotid endarterectomy;
Computed tomography angiography;
Magnetic resonance imaging
- From:
Chinese Journal of Minimally Invasive Surgery
2025;25(3):158-163
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate clinical diagnostic efficacy of carotid artery non-enhanced high-resolution magnetic resonance imaging(MRI)for carotid artery stenosis.Methods We analyzed 122 cases of symptomatic carotid stenosis who underwent carotid endarterectomy(CEA)for the first time in our hospital from January to September 2024.Preoperative computed tomography angiography(CTA)and non-enhanced high-resolution MRI of the carotid artery were performed.According to the North American Symptomatic Carotid Endarterectomy Trial(NASCET)criteria,two radiologists independently measured degree of stenosis in 244 carotid arteries on CTA and MRI images.The sensitivity,specificity,accuracy,missed diagnosis rate,and misdiagnosis rate of MRI for the diagnosis of carotid stenosis were calculated with CTA as the control and carotid stenosis rates of≥50%,≥70%,and 100%as the thresholds.Results Taking the carotid stenosis rate of≥50%as the threshold,the sensitivity,specificity,accuracy,missed diagnosis rate,and misdiagnosis rate of MRI were 99.4%(161/162),100.0%(82/82),99.6%(243/244),0.6%(1/162),and 0.0%(0/82),respectively.Taking the carotid stenosis rate of≥70%as the threshold,the sensitivity,specificity,accuracy,missed diagnosis rate,and misdiagnosis rate of MRI were 100.0%(129/129),100.0%(115/115),100.0%(244/244),0.0%(0/129),and 0.0%(0/115),respectively.Taking the carotid stenosis rate of 100%as the threshold,the sensitivity,specificity,accuracy,missed diagnosis rate,and misdiagnosis rate of MRI were 100.0%(30/30),99.5%(213/214),99.6%(243/244),0.0%(0/30),and 0.5%(1/214),respectively.The Kappa values(κ)were in good agreement among different radiologist groups(CTA:κ=0.967,P=0.000;MRI:κ=0.956,P=0.000).Conclusion Carotid artery non-enhanced high-resolution MRI can accurately evaluate carotid stenosis.
