Optimized contrast enhancement and homogeneity in aortic CT angiography: bolus tracking with personalized post-trigger delay.

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 t-test or Mann-Whitne

SUBMITTER: Qi K 

PROVIDER: S-EPMC11744128 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature