Ischemic Burden Assessment Using Single Photon Emission Computed Tomography in Single Vessel Chronic Total Occlusion of Coronary Artery.

ABSTRACT:

Background and objectives

Studies evaluating the nature of ischemic burden of chronic total occlusion (CTO) vessels are still lacking.

Methods

A total of 165 patients with single vessel CTO >2.5 mm in an epicardial coronary artery who underwent single photon emission computed tomography (SPECT) were enrolled in the study. Ischemic burden was calculated with the use of semi-quantitative SPECT analysis, and was defined as the summed difference score (SDS) divided by the maximal limit of the score (=SDS/68).

Results

The mean age of the participants was 59.5 years and the CTO of the left anterior descending coronary artery (LAD), left circumplex coronary artery (LCX), and right coronary artery (RCA) accounted for 93 (56.4%), 18 (10.9%), and 54 (32.7%) patients, respective

SUBMITTER: Yoon YH 

PROVIDER: S-EPMC8819571 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature