Preliminary Evaluation of the Effect of Body Weight on Contrast Enhancement in Coronary CT Angiography: A Fixed Iodine-Dose Protocol.

ABSTRACT: Objective: To assess the effectiveness of a fixed contrast injection protocol-75 mL of contrast followed by 40 mL saline at 5 mL/s with an injection duration of 23 s-in achieving diagnostic enhancement in coronary CT angiography (CCTA) using 64-slice detector CT scanner. Materials and Methods: 456 consecutive patients with suspected coronary disease who underwent CCTA on a 64-slice detector CT scanner between January 2023 and December 2024 and were retrospectively enrolled. Each patient received 75 mL of contrast medium followed by 40 mL of saline at a flow rate of 5 mL/s, with a total injection duration of 23 s. Two radiologists, blinded to patient information, independently measured the contrast enhancement (HU) values in the coronary segments, ascending and descending aort

SUBMITTER: Alraddadi F 

PROVIDER: S-EPMC12896695 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature