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Updated: May 2, 2026
A Method to Study the Correlation Between Local Collagen Structure and Mechanical Properties of Atherosclerotic Plaque Fibrous Tissue
Published on: November 11, 2022
Thermoelastic displacement measured by DP-OCT for detecting vulnerable plaques
Jihoon Kim1, Hyun Wook Kang2, Junghwan Oh2
1Fundamental Technology Group, Samsung-Electro Mechanics, Suwon 443-743, South Korea.
Abstract:
The detection of thermoelastic displacement by differential phase optical coherence tomography (DP-OCT) was analytically evaluated for identifying atherosclerotic plaques. Analytical solutions were developed to understand the dynamics of physical distribution of point hear sources during/after laser irradiation on thermoelastic responses of MION-injected tissue. Both analytical and experimental results demonstrated a delayed peak displacement along with slow decay after laser pulse due to heterogeneous distribution of the point heat sources. Detailed description of the heat sources in tissue as well as integration of a scanning mirror can improve computational accuracy as well as clinical applicability of DP-OCT for diagnosing vulnerable plaque.
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