Comparative Study of Fluoroscopy and Intracardiac Echocardiographic Guidance for the Creation of Linear Atrial Lesions

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Recently, attempts have been made to cure atrial fibrillation by creating multiple linear atrial lesions with radiofrequency energy. Intracardiac echocardiography (ICE) offers imaging of endocardial anatomy and the ablation electrode-tissue interface not available with standard fluoroscopy. This study sought to prospectively compare fluoroscopic with ICE guidance for the creation of linear atrial lesions in a canine model.


Compared with fluoroscopy, ICE guidance improved targeting, energy delivery, and lesion formation in this canine model. This study suggests that ICE guidance improves lesion formation and prevents energy delivery to potentially dangerous sites. (Circulation. 1998;98:1796-1801.)

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