Acoustic radiation force impulse imaging of myocardial radiofrequency ablation: initial in vivo results.

Journal Article (Journal Article)

Acoustic radiation force impulse (ARFI) imaging techniques were used to monitor radiofrequency (RF) ablation of ovine cardiac tissue in vivo. Additionally, ARFI M-mode imaging methods were used to interrogate both healthy and ablated regions of myocardial tissue. Although induced cardiac lesions were not visualized well in conventional B-mode images, ARFI images of ablation procedures allowed determination of lesion location, shape, and relative size through time. The ARFI M-mode images were capable of distinguishing differences in behavior through the cardiac cycle between healthy and damaged tissue regions. As conventional sonography is often used to guide ablation catheters, ARFI imaging, which requires no additional equipment, may be a convenient modality for monitoring lesion formation in vivo.

Full Text

Duke Authors

Cited Authors

  • Fahey, BJ; Nightingale, KR; McAleavey, SA; Palmeri, ML; Wolf, PD; Trahey, GE

Published Date

  • April 2005

Published In

Volume / Issue

  • 52 / 4

Start / End Page

  • 631 - 641

PubMed ID

  • 16060512

Electronic International Standard Serial Number (EISSN)

  • 1525-8955

International Standard Serial Number (ISSN)

  • 0885-3010

Digital Object Identifier (DOI)

  • 10.1109/tuffc.2005.1428046


  • eng