TY - GEN
T1 - Phase Aberration Correction in Transcranial Ultrasound Imaging using Averaged Sound Velocity Map in Delay-and-Sum Beamformer
AU - Mozaffarzadeh, Moein
AU - Minonzio, Claudio
AU - Verweij, Martin D.
AU - Hemm, Simone
AU - Daeichin, Verya
PY - 2019
Y1 - 2019
N2 - Deep brain stimulation (DBS) is used to modify the brain function. Localization of the electrode(s) used in DBS is an important mater since the success of the treatment highly depends on it. Transcranial ultrasound imaging (TUI) can be a proper candidate to monitor the electrode(s), but it is affected by the phase aberration caused by the skull bone. To address this issue, in this paper, we propose a novel beamforming method based on the sound velocity map of the imaging medium. For each combination of the imaging grid and element of the array, an averaged sound speed (ASD) is calculated. Then, the ASD is used inside a delay-and-sum beamforming method. The numerical results show that the proposed method compensates the phase aberration caused by the skull having a thickness of 5 mm with a sound speed twice of the imaging medium (i.e., water). The proposed method can be implemented in a real-time manner, which makes it a great candidate to be used in operation rooms for surgeries.
AB - Deep brain stimulation (DBS) is used to modify the brain function. Localization of the electrode(s) used in DBS is an important mater since the success of the treatment highly depends on it. Transcranial ultrasound imaging (TUI) can be a proper candidate to monitor the electrode(s), but it is affected by the phase aberration caused by the skull bone. To address this issue, in this paper, we propose a novel beamforming method based on the sound velocity map of the imaging medium. For each combination of the imaging grid and element of the array, an averaged sound speed (ASD) is calculated. Then, the ASD is used inside a delay-and-sum beamforming method. The numerical results show that the proposed method compensates the phase aberration caused by the skull having a thickness of 5 mm with a sound speed twice of the imaging medium (i.e., water). The proposed method can be implemented in a real-time manner, which makes it a great candidate to be used in operation rooms for surgeries.
KW - aberration
KW - adaptive beamforming
KW - deep brain stimulation
KW - Phase compensation
KW - Transcranial ultrasound imaging
UR - http://www.scopus.com/inward/record.url?scp=85077521599&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2019.8926091
DO - 10.1109/ULTSYM.2019.8926091
M3 - Conference contribution
AN - SCOPUS:85077521599
T3 - IEEE International Ultrasonics Symposium, IUS
SP - 1894
EP - 1897
BT - 2019 IEEE International Ultrasonics Symposium, IUS 2019
PB - IEEE
T2 - 2019 IEEE International Ultrasonics Symposium, IUS 2019
Y2 - 6 October 2019 through 9 October 2019
ER -