ArticleQuantitative imaging in medicine and surgery2025
Optimized contrast enhancement and homogeneity in aortic CT angiography: bolus tracking with personalized post-trigger delay.
Article in Quantitative imaging in medicine and surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Test-bolus peak attenuation for predicting aortic enhancement in coronary computed tomography angiography: an exploratory subgroup analysis.Quantitative imaging in medicine and surgery · 2026Article
- Photon-counting detector of the ophthalmic artery: impact of virtual monoenergetic levels, reconstruction kernel, and quantum iterative reconstruction (QIR) on image quality.Quantitative imaging in medicine and surgery · 2026Article
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11 authors.
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Abstract
Background: The bolus tracking technique has been used for decades, yet still faces the challenging task of determining the optimal scanning time for individuals. Our study aimed to assess the feasibility of a novel bolus tracking method with a personalized post-trigger delay (PTD) to optimize scanning time and achieve optimized enhancement and contrast homogeneity in aortic computed tomography angiography (CTA). Methods: Participants undergoing aortic CTA with bolus tracking were prospectively assigned to two different groups: Group A with a fixed 6-second PTD and Group B with a personalized PTD. A reader assessed objective image quality and evaluated enhancement level and contrast homogeneity; two readers rated subjective image quality. Student's Results: Group A comprised 70 participants [13 female; mean ± standard deviation (SD) age 58±11 years], whereas Group B included 70 participants (18 female, mean ± SD age 59±12 years) with the personalized PTD ranging from 7.8 to 14.1 seconds (mean ± SD, 11.2±1.5 seconds). Group B demonstrated improved mean attenuation and contrast-to-noise ratio (CNR) of aortoiliac artery [417.55±71.55 Conclusions: Bolus tracking with a personalized PTD can improve enhancement level and contrast homogeneity in aortic CTA due to reliable scan timing.
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