Low Contrast and Low kV CTA Before Transcatheter Aortic Valve Replacement: A Systematic Review.

ABSTRACT:

Background

Minimizing contrast dose and radiation exposure while maintaining image quality during computed tomography angiography (CTA) for transcatheter aortic valve replacement (TAVR) is desirable, but not well established. This systematic review compares image quality for low contrast and low kV CTA versus conventional CTA in patients with aortic stenosis undergoing TAVR planning.

Methods

We performed a systematic literature review to identify clinical studies comparing imaging strategies for patients with aortic stenosis undergoing TAVR planning. The primary outcomes of image quality as assessed by the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were reported as random effects mean difference with 95% confidence interval (CI).

Results

We included

SUBMITTER: Lacy SC 

PROVIDER: S-EPMC10133812 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature