Conflict of interest: Hiram Bezerra receives honoraria and research grants from St Jude Medical Inc. Guilherme Attizzani and Lino Patrício do not have any conflicts of interest to declare.
Coronary Artery Disease
Optical coherence tomography assessment of calcified plaque modification after rotational atherectomy
Article first published online: 1 NOV 2011
Copyright © 2011 Wiley Periodicals, Inc.
Catheterization and Cardiovascular Interventions
Volume 81, Issue 3, pages 558–561, February 2013
How to Cite
Attizzani, G. F., Patrício, L. and Bezerra, H. G. (2013), Optical coherence tomography assessment of calcified plaque modification after rotational atherectomy. Cathet. Cardiovasc. Intervent., 81: 558–561. doi: 10.1002/ccd.23385
- Issue published online: 18 FEB 2013
- Article first published online: 1 NOV 2011
- Manuscript Accepted: 22 SEP 2011
- Manuscript Received: 11 JUN 2011
- optical coherence tomography
Rotational atherectomy (RA) facilitates stent delivery in highly calcified coronary plaques (CCP). However, lesion ablation by RA in angulated segments may be affected by guidewire bias, leading to a non-uniform plaque modification. Intravascular optical coherence tomography (iOCT) is the highest resolution (∼10 μm axial) intravascular imaging modality available for clinical use; furthermore, near infrared light easily penetrates calcium, with significantly fewer artifacts, including no “blooming effect” as seen by intravascular ultrasound. Therefore, it may pose as a unique tool for serial calcium quantification, as related in this article with pre- and post-RA assessment, allowing accurate characterization of plaque modification, as well as quality of stent deployment. The effects of guidewire bias in the debulking process have not been well documented by iOCT. We present a case of lesion preparation by RA affected by guidewire bias in which iOCT revealed unique insights into CCP modification. © 2011 Wiley Periodicals, Inc.