&lt;title&gt;Speckle and speckle-interferometric methods in cardiodiagnostics&lt;/title&gt;

Kuzmin, Sergey Yu.; Ulyanov, Sergey S.; Tuchin, Valery V.; Ryabukho, Vladimir P.

doi:10.1117/12.231688

Cited by 3 publications

(1 citation statement)

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“…The usefulness of speckle metrology in orthopedic biomechanics was demonstrated [54,45] by making use of double-exposure laser speckle photography of broken leg bones. The possibility of applying a Michelson speckle interferometer for the investigation of cardio vibrations and the detection of pulse waves was substantiated [55,56]. A laser differential speckle interferometer with two beams focused onto the surface of an object has been successfully employed for the detection of human pulse at various points of skin surface in the waist area by the same group [56].…”

Section: Speckle Methods For Biomedical Applicationsmentioning

confidence: 99%

All fiber optic multi-modality imaging endo-speckle-fluoroscope for disease diagnosis in body cavities

Sujatha¹

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Cancer growths found in body cavities, such as colon, are a leading cause of death all over world. Medical intra cavity inspection techniques facilitate the diagnosis of cancers and other diseases, found in the different body cavities, such as nasal cavity, esophagus, colon, bladder, rectum etc. The cancer in the colorectal region of the body, which represents one of the most common malignant tumors, has become the second leading cause of death around the world, requiring urgent attention for its diagnosis and follow-up treatment. Also, to optimize patient management, precise detection or exclusion of metastases as well as assessment of their number and extent is indispensable. As colon cancer is highly curable if detected at a very early stage, diagnostic procedures based on early detection of the same is having important relevance. This early stage of cancer development is indicated by the presence of polyps of very small size (≈ mm) originating from the inner mucosal layer of the colon wall. The diagnostic techniques, which can identify small abnormalities such as polyp growth present at either the surface or subsurface of the mucosal layer, will be of much help in the early detection of cancer. The currently available methods for colon cancer diagnosis are still at the research and development stages within the context of early detection capability. The relevance and potential of the proposed research comes in this context. To ensure a complete and reliable diagnosis of the colon cancer, a multi-modality endoscope named as "ENDO-SPECKLE-FLUOROSCOPE", is proposed in this thesis, which operates

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Section: Speckle Methods For Biomedical Applicationsmentioning

confidence: 99%

All fiber optic multi-modality imaging endo-speckle-fluoroscope for disease diagnosis in body cavities

Sujatha¹

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Nondestructive inspection of tissue/tissue like phantom curved surfaces using digital speckle shearography

Sujatha

Murukeshan

2004

Opt. Eng

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A preliminary study of the application of speckle shearographic methods in the nondestructive inspection of the curved surfaces of soft tissue phantoms is presented. An extended theoretical formulation dealing with the slope fringe formation in the curved surface of the phantom tissue specimen is derived and compared with the experimentally obtained fringe patterns. Abnormalities are introduced in different layers of the half-cylindrical shaped tissue phantom that resembles abnormal growths in body cavities such as polyps in different parts of the gastrointestinal path, especially in the large intestine. A qualitative comparison of the shear fringe patterns for specimens with and without abnormalities is presented and the fringe patterns are compared with the slope contours generated numerically using finite element modeling.

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