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Deep brain stimulation (DBS) is used to modify thebrain function. Localization of the electrode(s) used in DBS isan important mater since the success of the treatment highlydepends on it. Transcranial ultrasound imaging (TUI) can be aproper candidate to monitor the electrode(s), but it is affected bythe phase aberration caused by the skull bone. To address thisissue, in this paper, we propose a novel beamforming methodbased on the sound velocity map of the imaging medium. Foreach combination of the imaging grid and element of the array, anaveraged sound speed (ASD) is calculated. Then, the ASD is usedinside a delay-and-sum beamforming method. The numericalresults show that the proposed method compensates the phaseaberration caused by the skull having a thickness of 5 mm witha sound speed twice of the imaging medium (i.e., water). Theproposed method can be implemented in a real-time manner,which makes it a great candidate to be used in operation roomsfor surgeries.Index Terms—Transcranial ultrasound imaging, deep brainstimulation, adaptive beamforming, Phase compensation, aber-ration
Original languageEnglish
Title of host publicationIEEE International Ultrasonics Symposium 2019
EditorsKim Kang
PublisherIEEE
Number of pages5
Publication statusPublished - 2019

    Research areas

  • MIM medical imaging, MBB Medical Beamforming and Beam Steering, MIS Medical Image and Signal Processing

ID: 67177299