Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

To investigate the diagnostic accuracy of (1) hyperaemic angiography-derived index of microcirculatory resistance (IMRangio) in defining coronary microvascular dysfunction (CMD) across patients with acute coronary syndromes (ST-elevation myocardial infarction [STEMI]; non-ST elevation acute coronary syndrome [NSTE-ACS]) and stable chronic coronary syndrome [CCS]) and (2) the accuracy of non-hyperaemic IMRangio (NH-IMRangio) to detect CMD in STEMI. 145 patients (STEMI = 66; NSTEMI = 43; CCS = 36) were enrolled. 246 pressure-wire IMR measurements were made in 189 coronary vessels. IMRangio and NH-IMRangio was derived using quantitative flow ratio. In patients with STEMI, cardiac magnetic resonance was performed to quantify microvascular obstruction (MVO). IMRangio was correlated with IMR (overall rho = 0.78, p 

Original publication

DOI

10.1007/s10554-021-02254-8

Type

Journal article

Journal

Int J Cardiovasc Imaging

Publication Date

06/2021

Volume

37

Pages

1801 - 1813

Keywords

Coronary microvascular dysfunction, IMRangio, Index of microcirculatory resistance, NSTE-ACS, QFR, STEMI, Stable chronic coronary syndrome