Detection of inflating balloon in optical coherence tomography images of a porcine artery in a beating heart experiment

Hamed Azarnoush; Sébastien Vergnole; Mark Hewko; Benoit Boulet; Mike Sowa; Guy Lamouche

doi:10.1117/12.878000

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1 March 2011 Detection of inflating balloon in optical coherence tomography images of a porcine artery in a beating heart experiment

Hamed Azarnoush, Sébastien Vergnole, Mark Hewko, Benoit Boulet, Mike Sowa, Guy Lamouche

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Proceedings Volume 7964, Medical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling; 79641V (2011) https://doi.org/10.1117/12.878000
Event: SPIE Medical Imaging, 2011, Lake Buena Vista (Orlando), Florida, United States

Abstract

Suboptimal results of angioplasty procedures have been correlated to arterial damage during balloon inflation. We propose to monitor balloon inflation during the angioplasty procedure by detecting the balloon contours with intravascular optical coherence tomography (IVOCT). This will shed more light on the interaction between the balloon and the artery and to assess the artery's mechanical response. An automatic edge detection algorithm is applied for detection of the outer surface of an inflating balloon in a porcine artery in a beating heart experiment. A compliant balloon is inflated to deform the artery. IVOCT monitoring of balloon inflation is performed at a rate of 30 frames per second. During inflation, the balloon engages the arterial wall. Therefore, the characterization of the diameter of the inflated balloon leads to a characterization of the luminal diameter of the vessel. This provides precise information about the artery response to a simulated angioplasty procedure, information currently not provided by any other existing technique. In the current experiment, balloon inflation characterization is based on 356 IVOCT frames during which the estimated balloon diameter increases approximately from 1.8 mm to 2.9 mm.

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Hamed Azarnoush, Sébastien Vergnole, Mark Hewko, Benoit Boulet, Mike Sowa, and Guy Lamouche "Detection of inflating balloon in optical coherence tomography images of a porcine artery in a beating heart experiment", Proc. SPIE 7964, Medical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling, 79641V (1 March 2011); https://doi.org/10.1117/12.878000

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