Imaging in cardiac resynchronisation therapy

Area of Science:

• Cardiology
• Medical Imaging

Background:

• Many heart failure patients do not respond to cardiac resynchronisation therapy (CRT).
• Identifying potential responders is key to improving CRT outcomes.
• Intraventricular dyssynchrony, scar tissue, and venous anatomy may influence CRT response.

Purpose of the Study:

• To review methods for assessing intraventricular dyssynchrony.
• To discuss the role of noninvasive imaging in selecting CRT candidates.
• To provide an overview of techniques for predicting CRT response.

Main Methods:

• Review of echocardiographic modalities for LV dyssynchrony measurement.
• Discussion of noninvasive imaging techniques: MRI, nuclear imaging, CT.
• Analysis of factors influencing CRT response.

Main Results:

• Echocardiography offers various methods to measure LV dyssynchrony.
• MRI, nuclear imaging, and CT can aid in selecting appropriate candidates for CRT.
• Scar tissue and venous anatomy are important considerations for CRT candidacy.

Conclusions:

• Assessment of LV dyssynchrony is vital for predicting CRT response.
• Noninvasive imaging techniques play a significant role in patient selection for CRT.
• A comprehensive approach considering dyssynchrony, scar, and anatomy improves CRT outcomes.