Prognostic value of transient ischemic dilation on Rubidium-82 positron emission tomography myocardial perfusion imaging.

ABSTRACT:

Background

Transient ischemic dilation (TID) of the left ventricular (LV) cavity is considered a high-risk marker in patients with abnormal single photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI). Stress image acquisition with rubidium-82 (⁸²Rb) PET occurs at peak stress compared to 30-60 minutes post-stress with SPECT. We aimed to evaluate the prognostic value of TID in patients undergoing ⁸²Rb PET MPI.

Methods

A total of 9878 consecutive patients with LVEF ≥40% undergoing rest/pharmacologic stress ⁸²Rb PET MPI from 2010 to 2016 were followed for a median of 3.2 years. The primary clinical outcome of cardiac death was assessed after adjusting for pre-test risk, known coronary artery disease (CAD), resting left v

SUBMITTER: Patel KK 

PROVIDER: S-EPMC11830523 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature