C-arm CT stent precision technology in intracranial arterial stent implantation
10.13929/j.issn.1003-3289.2025.02.031
- VernacularTitle:C臂CT支架精显技术用于植入颅内动脉支架
- Author:
Ji YIN
1
;
Li ZHU
;
Xiaolin HOU
;
Lingling ZHANG
;
Jingke YU
Author Information
1. 宁夏医科大学总医院放射导管室,宁夏银川 750004
- Publication Type:Journal Article
- Keywords:
intracranial arteriosclerosis;
stents;
stent visualization technology
- From:
Chinese Journal of Medical Imaging Technology
2025;41(2):331-335
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the value of C-arm CT stent precision technology in intracranial arterial stent implantation.Methods Data of 38 patients with symptomatic intracranial atherosclerotic stenosis who underwent intracranial arterial stent implantation were retrospectively analyzed.Stent displayed in 2D-digital subtraction angiography(DSA)during and immediately after implantation were observed,and superselective C-arm CT scanning of target artery and stent precision reconstruction were performed.Subjective scoring of display stent structure in 2D-DSA and stent precision reconstruction images were comparatively analyzed,and the clarity rate of displaying stent and detection rate of related complications were compared.Results Totally 45 stents were implanted in 38 patients.In 2D-DSA,the subjective score was 0 of 1,1 of 20 and 2 of 24 stents,respectively.Stent precision reconstruction image showed that subjective score was 0 of 1 stent and was 3 of 44 stents.The clarity rate of displaying stent in stent precision reconstruction image was 97.78％(44/45),much higher than that of 2D-DSA image(0[0/45],P＜0.001).Among 44 stents displayed in 2D-DSA,poor stent opening and abnormal perforator vessel was observed in each 1 stent,and no clear abnormality was found in the rest stents.Among 44 stents revealed in stent precision reconstruction images,poor stent opening,thromboses in stent and stent mesh protruding into vascular lumen were found each in 2 stents,while perforator vessel spasm and localized stenosis after stent implantation were noticed in 3 stents.Arterial dissection occurred in 8 stents during balloon dilation,after timely implantation of a new stent,stent precision reconstruction images showed the dissection rupture was completely covered.The complications of stent precision reconstruction was higher than that of 2D-DSA(38.64％[17/44]vs.4.55％[2/44].P=0.002).Conclusion C-arm CT stent precision technique had obvious advantages for intracranial artery stent implantation.
