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Biomechanical Imaging in Tissue - Using Time Dependent Data

McLaughlin, J (Rennselaer Polytechnic Institute)
Thursday 10 November 2011, 14:00-15:00

Seminar Room 2, Newton Institute Gatehouse


Biomechanical Tissue Imaging is inspired by the doctor's palpation exam where the doctor presses against the skin to feel abnormal stiff regions within the body. This talk about this imaging area will contain a description of inventive technologies that utilize the concept of interior radiation force; an example of one of these technologies is Supersonic Imaging which is developed in Paris. In these technologies low amplitude (tens of microns) propagating wave motion is produced in the body and the technologies output a movie of this motion. We will discuss elastic and viscoelastic mathematical models and the essential properties that must be included so that solutions mimic the data produced by the experiment. Algorithms, that utilize the fundamental features of the model and the time dependent data, will be presented. Images of cancerous tissue, corroborated with ultrasound images, including cancerous inclusions a few millimeters in diameter will be shown. Statistical properties of the images and sensitivity results will be included if time permits.


[pdf ]


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