524 OCTを用いた生体組織歪み分布計測法の検討(S11-2 イメージベースドモデリングの展開(2),S11 イメージベースドモデリングの展開)

概要

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Acute coronary syndromes, e.g. myocardial infarctions, are cased by the rupture of unstable plaques on coronary arteries. Recently, Optical Coherence Tomography (OCT) has been developed as a cross-sectional imaging method of microstructural biological tissue with high resolution, i.e. 1〜10μm. It is, however, difficult to estimate biomechanical characteristics, e.g. instability of plaque, because OCT images have just speckle patterns by back-scattering from tissue. In this study, presented is Optical Coherence Straingraphy (OCS), which can diagnose strain distribution of tissue. This method could be obtained spacial differential coefficient by parametric cubic spline interpolation between deformation vectors. This was applied to compressed homogeneous and heterogeneous samples. As a result, the proposed method was validated by strain distribution, as compared with local least square interpolation.
社団法人日本機械学会の論文
2006-09-15