Prognostic Implications of Blunted Feature-Tracking Global Longitudinal Strain During Vasodilator Cardiovascular Magnetic Resonance Stress Imaging.

ABSTRACT:

Objectives

The purpose of this study was to determine the prognostic value of feature-tracking global longitudinal strain (GLS) measured during vasodilator stress cardiac magnetic resonance (CMR) imaging.

Background

Prior studies have suggested that blunted myocardial strain during dobutamine stress echocardiography may be associated with adverse prognosis. Recent developments in CMR feature-tracking techniques now allow assessment of strain in clinical practice using standard cine images without specialized pulse sequences or complex post-processing. Whether feature-tracking GLS measured during vasodilator stress provides independent and incremental prognostic data is unclear.

Methods

Consecutive patients undergoing stress perfusion CMR were prospectively enrolled (n

SUBMITTER: Romano S 

PROVIDER: S-EPMC6745296 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature