Evaluation of stent effect display in lower extremity arterial occlusive disease based on energy spectrum CTA
- VernacularTitle:基于能谱CTA的下肢动脉闭塞性疾病支架效果显示评价
- Author:
Xin HUANG
1
;
Ningning DING
;
Li ZHOU
;
Wenzhe ZHAO
;
Daliang LI
;
Zhe LIU
;
Jian YANG
;
Chao JIN
Author Information
- Publication Type:Journal Article
- Keywords: chronic occlusive disease of lower limb artery; energy spectral CT angiography; single-energy imaging; lower extremity artery; arterial stent
- From: Journal of Xi'an Jiaotong University(Medical Sciences) 2025;46(1):178-183
- CountryChina
- Language:Chinese
- Abstract: Objective To explore the clinical value of energy-spectrum CT single-energy imaging in enhancing the image quality and stent display of stent placement CT angiography(CTA)in lower extremity atherosclerotic occlusive disease.Methods Twenty patients[mean(65.61±9.65)years;male/female,16/4]who underwent stenting for chronic occlusive disease of the lower extremity arteries by lower extremity arterial energetic spectral CTA were retrospectively recruited at our hospital.The original images were reconstructed into seven sets of single energy(40-100 keV),120 kVp,virtual unenhanced images(VUE)and metal artifact reduction(MAR)technique images.Images were debossed and then scaffolded for display with volumetric reconstruction(VR),maximum density projection(MIP)and curve planar reconstruction(CPR),and were objectively and subjectively assessed and compared using one-way analysis of variance(ANOVA).Results The 80 keV and MAR images had the highest scores compared to the other reconstruction group images(P＜0.01).Conclusion 80 keV single-energy imaging and de-metallization artifacts MAR improve the image quality of lower extremity arterial stent lumen and structure display;therefore,they have higher diagnostic value for clinicians.
