Association between optical coherence tomography and functionally severe stenosis assessed by quantitative flow ratio in coronary intermediate lesions.

ABSTRACT:

Background

Stenosis severity for an intermediate coronary lesion (ICL) demands comprehensive assessment methods. The relationship between optical coherence tomography (OCT) and coronary stenosis evaluated by quantitative flow ratio (QFR) remains to be discussed.

Objective

To investigate the association between OCT parameters and coronary functionally significant stenosis identified by QFR in patients with ICL.

Methods

A total of 113 patients with 115 target vessels were assessed using both OCT and QFR measurements for ICL. ICL was defined as a coronary lesion according to visual estimation with a diameter stenosis between 50% and 90%. Functional relevance stenosis was considered severe when QFR ≤ 0.80.

Results

The mean age of the included patients was 62.2 year

SUBMITTER: Xue Y 

PROVIDER: S-EPMC12151369 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature