Ultrasonic Needle Tracking with Dynamic Electronic Focusing

Sunish Mathews; Dzhoshkun Shakir; Charles A. Mosse; Wenfeng Xia; Edward Z. Zhang; Paul C. Beard; Simeon J. West; Anna David; Sebastien Ourselin; Tom Vercauteren; Adrien E. Desjardins

doi:10.1016/j.ultrasmedbio.2021.11.008

Ultrasonic Needle Tracking with Dynamic Electronic Focusing

Sunish Mathews, Dzhoshkun Shakir, Charles A. Mosse, Wenfeng Xia, Edward Z. Zhang, Paul C. Beard, Simeon J. West, Anna David, Sebastien Ourselin, Tom Vercauteren, Adrien E. Desjardins

Surgical & Interventional Engineering

UCL University College London

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

127 Downloads (Pure)

Abstract

Accurate identification of the needle tip is a key challenge with ultrasound-guided percutaneous interventions in regional anaesthesia, foetal surgery and cardiovascular medicine. In this study, we developed an ultrasonic needle tracking system in which the measured needle tip location was used to set the electronic focus of the external ultrasound imaging probe. In this system, needle tip tracking was enabled with a fibre-optic ultrasound sensor that was integrated into a needle stylet, and the A-lines recorded by the sensor were processed to generate tracking images of the needle tip. The needle tip position was estimated from the tracking images. The dependency of the tracking image on the electronic focal depth of the external ultrasound imaging probe was studied in a water bath and with needle insertions into a clinical training phantom. The variability in the estimated tracked position of the needle tip, with the needle tip at fixed depths in the imaging plane across a depth range from 0.5 to 7.5 cm, was studied. When the electronic focus was fixed, the variability of tracked position was found to increase with distance from that focus. The variability with the fixed focus was found to depend on the the relative distance between the needle tip and focal depth. It was found that with dynamic focusing, the maximum variability of tracked position was below 0.31 mm, as compared with 3.97 mm for a fixed focus.

Original language	English
Journal	Ultrasound in Medicine and Biology
Early online date	30 Dec 2021
DOIs	https://doi.org/10.1016/j.ultrasmedbio.2021.11.008
Publication status	E-pub ahead of print - 30 Dec 2021

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10.1016/j.ultrasmedbio.2021.11.008

Ultrasonic Needle Tracking_MATHEWS_Accepted30December2021_GREEN AAMAccepted author manuscript, 2.01 MBLicence: CC BY-NC-ND

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@article{b44871c80b72472c966096d46dbc7b06,

title = "Ultrasonic Needle Tracking with Dynamic Electronic Focusing",

abstract = "Accurate identification of the needle tip is a key challenge with ultrasound-guided percutaneous interventions in regional anaesthesia, foetal surgery and cardiovascular medicine. In this study, we developed an ultrasonic needle tracking system in which the measured needle tip location was used to set the electronic focus of the external ultrasound imaging probe. In this system, needle tip tracking was enabled with a fibre-optic ultrasound sensor that was integrated into a needle stylet, and the A-lines recorded by the sensor were processed to generate tracking images of the needle tip. The needle tip position was estimated from the tracking images. The dependency of the tracking image on the electronic focal depth of the external ultrasound imaging probe was studied in a water bath and with needle insertions into a clinical training phantom. The variability in the estimated tracked position of the needle tip, with the needle tip at fixed depths in the imaging plane across a depth range from 0.5 to 7.5 cm, was studied. When the electronic focus was fixed, the variability of tracked position was found to increase with distance from that focus. The variability with the fixed focus was found to depend on the the relative distance between the needle tip and focal depth. It was found that with dynamic focusing, the maximum variability of tracked position was below 0.31 mm, as compared with 3.97 mm for a fixed focus.",

author = "Sunish Mathews and Dzhoshkun Shakir and Mosse, {Charles A.} and Wenfeng Xia and Zhang, {Edward Z.} and Beard, {Paul C.} and West, {Simeon J.} and Anna David and Sebastien Ourselin and Tom Vercauteren and Desjardins, {Adrien E.}",

note = "Funding Information: This work was supported by the Wellcome/EPSRC Centre for Interventional and Surgical Sciences (203145Z/16/Z). For the purpose of open access, the author has applied a CC BY public copyright licence to any author accepted manuscript version arising from this submission. The work is also supported by an Innovative Engineering for Health award by the Wellcome Trust (WT101957) and the Engineering and Physical Sciences Research Council (EPSRC) (NS/A000027/1), by an ESPRC First Grant (EP/J010952/1) and by core funding from the Wellcome/EPSRC (WT203148/Z/16/Z; NS/A000049/1). In addition, the work is supported by Starting and Advanced grants from the European Research Council (310970 ; 74119). Publisher Copyright: {\textcopyright} 2021 World Federation for Ultrasound in Medicine & Biology",

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doi = "10.1016/j.ultrasmedbio.2021.11.008",

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AU - Mathews, Sunish

AU - Shakir, Dzhoshkun

AU - Mosse, Charles A.

AU - Xia, Wenfeng

AU - Zhang, Edward Z.

AU - Beard, Paul C.

AU - West, Simeon J.

AU - David, Anna

AU - Ourselin, Sebastien

AU - Vercauteren, Tom

AU - Desjardins, Adrien E.

N1 - Funding Information: This work was supported by the Wellcome/EPSRC Centre for Interventional and Surgical Sciences (203145Z/16/Z). For the purpose of open access, the author has applied a CC BY public copyright licence to any author accepted manuscript version arising from this submission. The work is also supported by an Innovative Engineering for Health award by the Wellcome Trust (WT101957) and the Engineering and Physical Sciences Research Council (EPSRC) (NS/A000027/1), by an ESPRC First Grant (EP/J010952/1) and by core funding from the Wellcome/EPSRC (WT203148/Z/16/Z; NS/A000049/1). In addition, the work is supported by Starting and Advanced grants from the European Research Council (310970 ; 74119). Publisher Copyright: © 2021 World Federation for Ultrasound in Medicine & Biology

PY - 2021/12/30

Y1 - 2021/12/30

N2 - Accurate identification of the needle tip is a key challenge with ultrasound-guided percutaneous interventions in regional anaesthesia, foetal surgery and cardiovascular medicine. In this study, we developed an ultrasonic needle tracking system in which the measured needle tip location was used to set the electronic focus of the external ultrasound imaging probe. In this system, needle tip tracking was enabled with a fibre-optic ultrasound sensor that was integrated into a needle stylet, and the A-lines recorded by the sensor were processed to generate tracking images of the needle tip. The needle tip position was estimated from the tracking images. The dependency of the tracking image on the electronic focal depth of the external ultrasound imaging probe was studied in a water bath and with needle insertions into a clinical training phantom. The variability in the estimated tracked position of the needle tip, with the needle tip at fixed depths in the imaging plane across a depth range from 0.5 to 7.5 cm, was studied. When the electronic focus was fixed, the variability of tracked position was found to increase with distance from that focus. The variability with the fixed focus was found to depend on the the relative distance between the needle tip and focal depth. It was found that with dynamic focusing, the maximum variability of tracked position was below 0.31 mm, as compared with 3.97 mm for a fixed focus.

AB - Accurate identification of the needle tip is a key challenge with ultrasound-guided percutaneous interventions in regional anaesthesia, foetal surgery and cardiovascular medicine. In this study, we developed an ultrasonic needle tracking system in which the measured needle tip location was used to set the electronic focus of the external ultrasound imaging probe. In this system, needle tip tracking was enabled with a fibre-optic ultrasound sensor that was integrated into a needle stylet, and the A-lines recorded by the sensor were processed to generate tracking images of the needle tip. The needle tip position was estimated from the tracking images. The dependency of the tracking image on the electronic focal depth of the external ultrasound imaging probe was studied in a water bath and with needle insertions into a clinical training phantom. The variability in the estimated tracked position of the needle tip, with the needle tip at fixed depths in the imaging plane across a depth range from 0.5 to 7.5 cm, was studied. When the electronic focus was fixed, the variability of tracked position was found to increase with distance from that focus. The variability with the fixed focus was found to depend on the the relative distance between the needle tip and focal depth. It was found that with dynamic focusing, the maximum variability of tracked position was below 0.31 mm, as compared with 3.97 mm for a fixed focus.

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U2 - 10.1016/j.ultrasmedbio.2021.11.008

DO - 10.1016/j.ultrasmedbio.2021.11.008

M3 - Article

SN - 0301-5629

JO - Ultrasound in Medicine and Biology

JF - Ultrasound in Medicine and Biology

ER -

Ultrasonic Needle Tracking with Dynamic Electronic Focusing

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