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Updated: Jun 28, 2026

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
Imaging in cardiac resynchronisation therapy
C Ypenburg1, E E van der Wall, M J Schalij
1Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands.
Abstract:
A substantial number of heart failure (HF) patients do not respond after cardiac resynchronisation therapy (CRT). Recent studies observed that assessment of intraventricular (LV) dyssynchrony may allow identification of potential responders to CRT. In addition, presence of scar tissue and venous anatomy may play a role in the selection of candidates. In this review, an extensive overview of the available LV dyssynchrony measurements is provided using different echocardiographic modalities. In addition, the value of other noninvasive techniques such as magnetic resonance imaging, nuclear imaging and computed tomography for the selection of potential candidates for CRT will be discussed. (Neth Heart J 2008;16(Suppl1):S36-S40.).
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