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MICCAI
2009
Springer

Tracked Regularized Ultrasound Elastography for Targeting Breast Radiotherapy

11 years 5 months ago
Tracked Regularized Ultrasound Elastography for Targeting Breast Radiotherapy
Tracked ultrasound elastography can be used for guidance in partial breast radiotherapy by visualizing the hard scar tissue around the lumpectomy cavity. For clinical success, the elastography method needs to be robust to the sources of decorrelation between ultrasound images, specifically fluid motions inside the cavity, change of the appearance of speckles caused by compression or physiologic motions, and out-of-plane motion of the probe. In this paper, we present a novel elastography technique that is based on analytic minimization of a regularized cost function. The cost function incorporates similarity of RF data intensity and displacement continuity, making the method robust to small decorrelations present throughout the image. We also exploit techniques from robust statistics to make the method resistant to large decorrelations caused by sources such as fluid motion. The analytic displacement estimation works in real-time. Moreover, the tracked data, used for targeting the radio...
Hassan Rivaz, Pezhman Foroughi, Ioana Fleming,
Added 06 Nov 2009
Updated 08 Dec 2009
Type Conference
Year 2009
Where MICCAI
Authors Hassan Rivaz, Pezhman Foroughi, Ioana Fleming, Richard Zellars, Emad Boctor, Gregory D. Hager
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