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18 September 2012 Intravascular optical coherence tomography to characterize tissue deformation during angioplasty: preliminary experiments with artery phantoms
Hamed Azarnoush, Sébastien Vergnole, Valérie Pazos, Charles-Étienne Bisaillon, Benoit Boulet, Guy Lamouche
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Journal of Biomedical Optics, Vol. 17, Issue 9, 096015 (September 2012). https://doi.org/10.1117/1.JBO.17.9.096015
Abstract
We explored the potential of intravascular optical coherence tomography (IVOCT) to assess deformation during angioplasty balloon inflation. Using a semi-compliant balloon and artery phantoms, we considered two experimental scenarios. The goal for the first scenario was to investigate if variation in the elasticity of the structure surrounding the balloon could be sensed by IVOCT monitoring. In this scenario, we used three single-layer phantoms with various mechanical properties. Image analysis was performed to extract the inner and outer diameters of the phantoms at various pressures. The goal for the second scenario was twofold. First, we investigated the IVOCT capability to monitor a more complex balloon inflation process. The balloon was in a folded state prior to inflation. This allowed studying two stages of deformation: during balloon unfolding and during balloon expansion. Second, we investigated IVOCT capability to monitor the deformation in a three-layer phantom used to better mimic a true artery. So, not only were the IVOCT images processed to provide the inner and outer diameters of the phantom, but the layer thicknesses were also determined. In both scenarios, IVOCT monitoring revealed to be very efficient in providing relevant information about the phantom deformation during balloon inflation.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2012/$25.00 © 2012 SPIE
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Hamed Azarnoush, Sébastien Vergnole, Valérie Pazos, Charles-Étienne Bisaillon, Benoit Boulet, and Guy Lamouche "Intravascular optical coherence tomography to characterize tissue deformation during angioplasty: preliminary experiments with artery phantoms," Journal of Biomedical Optics 17(9), 096015 (18 September 2012). https://doi.org/10.1117/1.JBO.17.9.096015
Published: 18 September 2012
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Cited by 6 scholarly publications.
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KEYWORDS
Arteries
Optical coherence tomography
Tissue optics
Image analysis
Prisms
Image segmentation
Image processing
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