Effect of dynamic receive focusing on Reflex Transmission Imaging (RTI)

Baker, Logan; Bamber, Jeffrey C.

doi:10.1109/ultsym.2002.1192595

Cited by 1 publication

(1 citation statement)

References 7 publications

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“…The attenuation in the necrosed tissue is much higher than that of the surrounding healthy tissue, hence, the tissue behind the HIFU lesion would appear slightly darker in standard B-scan images. Processing the B-scan data, Baker and Bamber, 26 Annad and Kaczkowski, 27 and Zhong et al 28 detected the changes in the ultrasound images behind the lesion.…”

Section: Introductionmentioning

confidence: 99%

Shape-based ultrasound tomography using a Born model with application to high intensity focused ultrasound therapy

Karbeyaz

Miller

Cleveland

2008

The Journal of the Acoustical Society of America

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A shaped-based ultrasound tomography method is proposed to reconstruct ellipsoidal objects using a linearized scattering model. The method is motivated by the desire to detect the presence of lesions created by high intensity focused ultrasound ͑HIFU͒ in applications of cancer therapy. The computational size and limited view nature of the relevant three-dimensional inverse problem renders impractical the use of traditional pixel-based reconstruction methods. However, by employing a shape-based parametrization it is only necessary to estimate a small number of unknowns describing the geometry of the lesion, in this paper assumed to be ellipsoidal. The details of the shape-based nonlinear inversion method are provided. Results obtained from a commercial ultrasound scanner and a tissue phantom containing a HIFU-like lesion demonstrate the feasibility of the approach where a 20 mmϫ 5 mmϫ 6 mm ellipsoidal inclusion was detected with an accuracy of around 5%.

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Section: Introductionmentioning

confidence: 99%