Optical Elastography and Tissue Biomechanics VI最新文献_第3页

Linear and nonlinear optical coherence elastography in three dimensions (Conference Presentation) 三维线性和非线性光学相干弹性学(会议报告)

Optical Elastography and Tissue Biomechanics VI Pub Date : 2019-03-04 DOI: 10.1117/12.2509574

A. Oberai, Nicholas R Hugenberg, Matt S. Hepburn, Philip Wijesinghe, Dawei Song, B. Kennedy

引用次数: 1

Absolute three-dimensional measurement of refractive index via dual Brillouin spectroscopy (Conference Presentation) 双布里渊光谱绝对三维折射率测量(会议报告)

Optical Elastography and Tissue Biomechanics VI Pub Date : 2019-03-04 DOI: 10.1117/12.2510406

A. Fiore, G. Scarcelli

引用次数: 1

Altered stress granules biomechanics by ALS protein FUS revealed by background-deflection Brillouin microscopy (Conference Presentation) 背景偏转布里渊显微镜显示ALS蛋白FUS改变应力颗粒生物力学(会议报告)

Optical Elastography and Tissue Biomechanics VI Pub Date : 2019-03-04 DOI: 10.1117/12.2509477

G. Antonacci

引用次数: 1

How imaging is informing diagnosis and treatment of glaucoma (Conference Presentation) 影像如何为青光眼的诊断和治疗提供信息(会议报告)

Optical Elastography and Tissue Biomechanics VI Pub Date : 2019-03-04 DOI: 10.1117/12.2505268

C. Ethier

引用次数: 0

An analytical model of laser-induced dynamic thermoelastic deformation of the viscoelastic half-space (Conference Presentation) 粘弹性半空间激光诱导动态热弹性变形的解析模型(会议报告)

Optical Elastography and Tissue Biomechanics VI Pub Date : 2019-03-04 DOI: 10.1117/12.2506194

S. Aglyamov, Susobhan Das, Chih-Hao Liu, Shang Wang, Alexander W. Schill, K. Larin

{"title":"An analytical model of laser-induced dynamic thermoelastic deformation of the viscoelastic half-space (Conference Presentation)","authors":"S. Aglyamov, Susobhan Das, Chih-Hao Liu, Shang Wang, Alexander W. Schill, K. Larin","doi":"10.1117/12.2506194","DOIUrl":"https://doi.org/10.1117/12.2506194","url":null,"abstract":"Laser-induced thermoelastic deformation can be an effective way to induce disturbances in soft biological tissues in elastography and photoacoustcs. A laser pulse results in rapid temperature increase, thermoelastic expansion and generation of compressional and shear waves in the tissue. After the expansion and wave attenuation, a quasi-steady state is reached. For several medical applications of elastography, laser-induced thermoelastic deformation has been proposed as a way to produce strain in the tissue to assess tissue mechanical properties. In combination with measuring tissue response using optical coherence tomography, such an approach could be an effective method for noncontact measurement of tissue mechanical properties. In our previous works we have derived a three-dimensional analytical solution for the quasi-steady state, when the tissue reaches equilibrium after the acoustic and shear waves have decayed. In this work, we consider dynamic tissue response at the moment of time immediately after the laser pulse. In the frequency domain, an analytical expression has been derived for the thermoelastic displacements and stresses caused by absorption of an axially symmetric laser beam. The solution was obtained for the Gaussian radial temperature profile on the upper surface of a viscoelastic half-space. The influence of the shear elastic properties on the elastic wave propagation and displacement profiles was evaluated. The proposed analytical solution could be used to model mechanical and photoacoustic tissue response to laser excitation, as well as to investigate the mechanism of photomechanical laser ablation. \u0000\u0000This study was supported by NIH grant R01EY022362.","PeriodicalId":348521,"journal":{"name":"Optical Elastography and Tissue Biomechanics VI","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127283929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Laser speckle micro-rheology for studying cancer mechanobiology with resolution enhancement (Conference Presentation) 增强分辨率的激光散斑微流变学用于癌症力学生物学研究(会议报告)

Optical Elastography and Tissue Biomechanics VI Pub Date : 2019-03-04 DOI: 10.1117/12.2510355

Zeinab Hajjarian Kashany, S. Nadkarni

引用次数: 1