Coronary artery calcium score scan at 100 kVp with tin filtration (Sn100 kVp) prior to coronary computed tomography angiography for overall radiation dose reduction: a prospective cohort study.

ABSTRACT:

Background

Reducing radiation dose is a global concern in coronary computed tomography angiography (CCTA). We aimed to investigate whether a coronary artery calcium score (CACS) scan would lead to an overall reduction of radiation dose in CCTA examination and determine its necessity in routine CCTA imaging.

Methods

A total of 297 patients with suspected coronary heart disease were consecutively enrolled in this prospective cohort study between March 1, 2021, and September 1, 2021. All patients were scanned using a prospective electrocardiogram-triggered sequence acquisition mode on a dual-source computed tomography (CT) scanner. The first 1-150 patients (group A, n=150) were scanned with CACS using tin filtration with low voltage (Sn100 kVp) to guide the CCTA scanning range,

SUBMITTER: Jin L 

PROVIDER: S-EPMC9403587 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature