Reconstruction of Ultrasound Imaging Information
January 25, 2010
Bailey Hall 207
Refreshments will be served in Bailey 204 at 4:15
Ultrasound imaging has great potential in helping physicians diagnose and treat medical conditions. It is quick, inexpensive, and boasts excellent soft tissue contrast. Spatial variations of attenuation across tissue layers can result in shadowing and enhancement in ultrasound B-scan images. These artifacts affect the underlying signal backscatter, which is the main component of ultrasound images and has clinical significance in detecting diseases and tumors. I will present a novel joint estimation method based on the variational principle to compensate for attenuation artifacts via functional minimization and regularization. Pair of pathological useful backscatter and attenuation fields is reconstructed along with segmented anatomic structures. We will compute the numerical solutions and discuss the applications in cancer radiation therapy.
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