Use of Passive Arrays for Characterization and Mapping of Cavitation Activity during HIFU Exposure
Inertial cavitation occurring during HIFU exposure act both as a promoter and as a marker of heat deposition, bubbles re-radiate part of the incident field as noise emissions that are detectable over a frequency far removed from the main HIFU excitation frequency. In present work, a commercially ava...
| Main Authors: | , , , , |
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| Format: | Conference item |
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2008
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| _version_ | 1826302314311319552 |
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| author | Gyoengy, M Arora, M Noble, J Coussios, C IEEE |
| author_facet | Gyoengy, M Arora, M Noble, J Coussios, C IEEE |
| author_sort | Gyoengy, M |
| collection | OXFORD |
| description | Inertial cavitation occurring during HIFU exposure act both as a promoter and as a marker of heat deposition, bubbles re-radiate part of the incident field as noise emissions that are detectable over a frequency far removed from the main HIFU excitation frequency. In present work, a commercially available ultrasound scanning (with the transmit signal turned off) and linear array are to detect the emissions emanating from cavitating bubbles on 64 independent channels during HIFU exposure. A algorithm is presented that enables localization and of cavitation activity, both for the case of a single and in the context of contiguous, disjoint cavitating . By contrast to B-mode hyperechogenicity imaging that is used in ultrasound-guided HIFU systems but can only whilst the HIFU is off, the passive imaging technique here can be implemented during HIFU exposure, thus a potential means of real-time treatment monitoring ablation. ©2008 IEEE. |
| first_indexed | 2024-03-07T05:45:41Z |
| format | Conference item |
| id | oxford-uuid:e7239abd-369c-4440-9e93-6adc04d46d90 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T05:45:41Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:e7239abd-369c-4440-9e93-6adc04d46d902022-03-27T10:36:24ZUse of Passive Arrays for Characterization and Mapping of Cavitation Activity during HIFU ExposureConference itemhttp://purl.org/coar/resource_type/c_5794uuid:e7239abd-369c-4440-9e93-6adc04d46d90Symplectic Elements at Oxford2008Gyoengy, MArora, MNoble, JCoussios, CIEEEInertial cavitation occurring during HIFU exposure act both as a promoter and as a marker of heat deposition, bubbles re-radiate part of the incident field as noise emissions that are detectable over a frequency far removed from the main HIFU excitation frequency. In present work, a commercially available ultrasound scanning (with the transmit signal turned off) and linear array are to detect the emissions emanating from cavitating bubbles on 64 independent channels during HIFU exposure. A algorithm is presented that enables localization and of cavitation activity, both for the case of a single and in the context of contiguous, disjoint cavitating . By contrast to B-mode hyperechogenicity imaging that is used in ultrasound-guided HIFU systems but can only whilst the HIFU is off, the passive imaging technique here can be implemented during HIFU exposure, thus a potential means of real-time treatment monitoring ablation. ©2008 IEEE. |
| spellingShingle | Gyoengy, M Arora, M Noble, J Coussios, C IEEE Use of Passive Arrays for Characterization and Mapping of Cavitation Activity during HIFU Exposure |
| title | Use of Passive Arrays for Characterization and Mapping of Cavitation Activity during HIFU Exposure |
| title_full | Use of Passive Arrays for Characterization and Mapping of Cavitation Activity during HIFU Exposure |
| title_fullStr | Use of Passive Arrays for Characterization and Mapping of Cavitation Activity during HIFU Exposure |
| title_full_unstemmed | Use of Passive Arrays for Characterization and Mapping of Cavitation Activity during HIFU Exposure |
| title_short | Use of Passive Arrays for Characterization and Mapping of Cavitation Activity during HIFU Exposure |
| title_sort | use of passive arrays for characterization and mapping of cavitation activity during hifu exposure |
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