myocardial tagging

Full Definition

Myocardial tagging is a specialized cardiac MRI technique that applies spatial modulation of magnetization to create temporary grid lines or tags within the myocardium. These tags move and deform with the heart muscle during contraction, allowing precise quantification of regional strain, rotation, and torsion. The technique provides detailed assessment of myocardial mechanics beyond simple wall motion evaluation, enabling detection of subtle contractile abnormalities in various cardiomyopathies.

Usage

Usage note: Often abbreviated as 'tagging' in clinical context.

In Context

• "Myocardial tagging revealed reduced circumferential strain in the inferolateral segments." — Research cardiac MRI study
• "The tagging sequence demonstrated preserved apical rotation despite reduced global function." — Advanced cardiac imaging report