Utility of dual-source computed tomography in cardiac resynchronization therapy-DIRECT study.

ABSTRACT:

Background

Dual-source computed tomography (CT) can evaluate left ventricular (LV) dyssynchrony, myocardial scar, and coronary venous anatomy in patients undergoing cardiac resynchronization therapy (CRT).

Objective

We aimed to determine whether dual-source CT predicts clinical CRT outcomes and reduces intraprocedural time.

Methods

In this prospective study, 54 patients scheduled for CRT (mean age 63 ± 11 years; 74% men) underwent preprocedural CT to assess their venous anatomy as well as CT-derived dyssynchrony metrics and myocardial scar. Based on 1:1 randomization, the implanting physician had preimplant knowledge of the venous anatomy in half the patients. In blinded analyses, we measured time to maximal wall thickness and inward wall motion to determine (1) CT gl

SUBMITTER: Truong QA 

PROVIDER: S-EPMC6067961 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature