Optimization of head and neck vascular CT angiography using variable rate bolus tracking technique and third-generation dual-source CT dual-energy scanning

被引：0
作者：
Lin, Wei-Hua [1 ]
Zhang, Fei-Peng [1 ]
Wang, Bing-Quan [1 ]
Huang, Rui-Gang [1 ]
Zhan, A-Lai [1 ]
Xiao, Hui-Jun [1 ]
机构：
[1] Fujian Med Univ, Dept Radiol, Zhangzhou Affiliated Hosp, Zhangzhou, Peoples R China
来源：
BMC MEDICAL IMAGING | 2025年 / 25卷 / 01期
关键词：
Head and neck vascular CTA; Bolus tracking technique; Variable rate; Contrast agent dosage; Dual-source CT; MATERIAL-INDUCED NEPHROTOXICITY; IODINATED CONTRAST MATERIAL; SETTINGS; STENOSIS; TIME; PEAK;
D O I：
10.1186/s12880-025-01613-4
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
ObjectiveTo evaluate the effectiveness of the variable rate bolus tracking technique combined with third-generation dual-source CT dual-energy scanning in enhancing the quality of head and neck vascular CT angiography (CTA).MethodsWe conducted a retrospective analysis of 202 patients who underwent head and neck vascular CTA using a third-generation dual-source CT with dual-energy scanning. Patients were divided based on the contrast injection method into two groups: the variable-rate bolus tracking group (Group A, n = 100) and the fixed flow rate group (Group B, n = 102). We compared subjective image quality, venous artifacts, and objective image quality parameters between the two groups.ResultsThe amount of contrast agent used in Group A was significantly lower than in Group B. Additionally, mean attenuation values of arterial segments in Group A were markedly lower than those in Group B. Compared to Group B, attenuation values of the intracranial venous sinuses, right jugular vein, superior vena cava, right subclavian vein, and left jugular vein in Group A showed significant reductions. No significant difference was observed in the subjective image quality between the two groups. However, venous artifact in the right subclavian vein was significantly diminished in Group A.ConclusionThe application of the variable rate bolus tracking technique alongside third-generation dual-source CT dual-energy scanning in head and neck vascular CTA can achieve high-quality imaging while reducing contrast agent dosage. It enhances the attenuation contrast of intracranial arteries and veins and minimizes residual contrast and artifacts in the right subclavian vein.
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页数：10
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