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Use of Intracardiac Echocardiography in Cardiac Electrophysiology 

Use of Intracardiac Echocardiography in Cardiac Electrophysiology
Use of Intracardiac Echocardiography in Cardiac Electrophysiology

Paul A. Friedman

and Samuel J. Asirvatham

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date: 27 October 2021

Intracardiac echocardiography is increasingly used during invasive electrophysiology procedures. Common applications include guiding transseptal puncture, assessing potential complications, and identifying structures invisible under fluoroscopy. It is important to distinguish intravascular ultrasound from intracardiac ultrasound. Intravascular ultrasound uses high-frequency transducers that provide excellent high-resolution images but have limited tissue penetration. Intracardiac imaging uses lower frequencies, increasing tissue penetration to 14 cm and permitting “whole heart” imaging. The purpose of this brief introduction is to provide practical points of reference for use of intracardiac echocardiography and orientation to the images that follow in the remainder of the book. Thus, only images from the phased-array system are included.

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