We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Real-time monitoring of cardiac radio-frequency ablation lesion formation using an optical coherence tomography forward-imaging catheter.
- Authors
Christine P. Fleming; Hui Wang; Kara J. Quan; Andrew M. Rollins
- Abstract
Radio-frequency ablation (rfa) is the standard of care for the treatment of cardiac arrhythmias; however, there are no direct measures of the successful delivery of ablation lesions. Optical coherence tomography (OCT) imaging has the potential to provide real-time monitoring of cardiac rfa therapy, visualizing lesion formation and assessing tissue contact in the presence of blood. A rfa-compatible forward-imaging conical scanning probe is prototyped to meet this need. The forward-imaging probe provides circular scanning, with a 2-mmscan diameter and 30-mspot size. During the application of rf energy, dynamics are recorded at 20 frames per secondwith a 40-kHzA-line rate. Real-time monitoring of cardiac rfa lesion formation and imaging in the presence of blood is demonstrated ex vivoin a swine left ventricle with a forward, flexible, circular scanning OCT catheter.
- Subjects
CATHETER ablation; ARRHYTHMIA treatment; CARDIOGRAPHIC tomography; OPTICAL coherence tomography; MEDICAL imaging systems; MEDICAL records; HEMODYNAMICS; LEFT heart ventricle
- Publication
Journal of Biomedical Optics, 2010, Vol 15, Issue 3, p030516
- ISSN
1083-3668
- Publication type
Article
- DOI
10.1117/1.3459134