Shape-based ultrasound tomography using a Born model with application to high intensity focused ultrasound therapy.
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 (HIFU) in applications of cancer therapy. The computati...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2008
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| _version_ | 1826264123603681280 |
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| author | Ulker Karbeyaz, B Miller, E Cleveland, R |
| author_facet | Ulker Karbeyaz, B Miller, E Cleveland, R |
| author_sort | Ulker Karbeyaz, B |
| collection | OXFORD |
| description | 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 (HIFU) 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 mm x 5 mm x 6 mm ellipsoidal inclusion was detected with an accuracy of around 5%. |
| first_indexed | 2024-03-06T20:02:42Z |
| format | Journal article |
| id | oxford-uuid:27ddc396-038d-4c83-bd97-126318c70d14 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:02:42Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:27ddc396-038d-4c83-bd97-126318c70d142022-03-26T12:09:22ZShape-based ultrasound tomography using a Born model with application to high intensity focused ultrasound therapy.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:27ddc396-038d-4c83-bd97-126318c70d14EnglishSymplectic Elements at Oxford2008Ulker Karbeyaz, BMiller, ECleveland, RA 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 (HIFU) 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 mm x 5 mm x 6 mm ellipsoidal inclusion was detected with an accuracy of around 5%. |
| spellingShingle | Ulker Karbeyaz, B Miller, E Cleveland, R Shape-based ultrasound tomography using a Born model with application to high intensity focused ultrasound therapy. |
| title | Shape-based ultrasound tomography using a Born model with application to high intensity focused ultrasound therapy. |
| title_full | Shape-based ultrasound tomography using a Born model with application to high intensity focused ultrasound therapy. |
| title_fullStr | Shape-based ultrasound tomography using a Born model with application to high intensity focused ultrasound therapy. |
| title_full_unstemmed | Shape-based ultrasound tomography using a Born model with application to high intensity focused ultrasound therapy. |
| title_short | Shape-based ultrasound tomography using a Born model with application to high intensity focused ultrasound therapy. |
| title_sort | shape based ultrasound tomography using a born model with application to high intensity focused ultrasound therapy |
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