TY - JOUR
T1 - Dual Orientation 16-MHz Single-Element Ultrasound Needle Transducers for Image-Guided Neurosurgical Intervention
AU - Jiang, Yun
AU - Qiu, Zhen
AU - McPhillips, Rachael
AU - Meggs, Carl
AU - Mahboob, Syed Osama
AU - Wang, Han
AU - Duncan, Robyn
AU - Rodriguez-Sanmartin, Daniel
AU - Zhang, Ye
AU - Schiavone, Giuseppe
AU - Eisma, Roos
AU - Desmulliez, Marc P Y
AU - Eljamel, Sam
AU - Cochran, Sandy
AU - Button, Tim W.
AU - Demore, Christine E M
PY - 2016/2
Y1 - 2016/2
N2 - Image-guided surgery is today considered to be of significant importance in neurosurgical applications. However, one of its major shortcomings is its reliance on preoperative image data, which does not account for brain deformations and displacements that occur during surgery. In this work, we propose to tackle this issue through the incorporation of an ultrasound device within the type of biopsy needles commonly used as an interventional tool to provide immediate feedback to neurosurgeons during surgical procedures. To identify the most appropriate path to access a targeted tissue site, single-element transducers that look either forward or sideways have been designed and fabricated. Micromolded 1-3 piezocomposites were adopted as the active materials for feasibility tests and epoxy lenses have been applied to focus the ultrasound beam. Electrical impedance analysis, pulse-echo testing, and wire phantom scanning have been carried out, demonstrating the functionality of the needle transducers at ∼16 MHz. The capabilities of these transducers for intraoperative image guidance were demonstrated by imaging within soft-embalmed cadaveric human brain and fresh porcine brain.
AB - Image-guided surgery is today considered to be of significant importance in neurosurgical applications. However, one of its major shortcomings is its reliance on preoperative image data, which does not account for brain deformations and displacements that occur during surgery. In this work, we propose to tackle this issue through the incorporation of an ultrasound device within the type of biopsy needles commonly used as an interventional tool to provide immediate feedback to neurosurgeons during surgical procedures. To identify the most appropriate path to access a targeted tissue site, single-element transducers that look either forward or sideways have been designed and fabricated. Micromolded 1-3 piezocomposites were adopted as the active materials for feasibility tests and epoxy lenses have been applied to focus the ultrasound beam. Electrical impedance analysis, pulse-echo testing, and wire phantom scanning have been carried out, demonstrating the functionality of the needle transducers at ∼16 MHz. The capabilities of these transducers for intraoperative image guidance were demonstrated by imaging within soft-embalmed cadaveric human brain and fresh porcine brain.
KW - 1-3 composite
KW - needle ultrasound transducer
KW - neurosurgery
UR - http://www.scopus.com/inward/record.url?scp=84962022980&partnerID=8YFLogxK
U2 - 10.1109/TUFFC.2015.2506611
DO - 10.1109/TUFFC.2015.2506611
M3 - Article
C2 - 26672034
AN - SCOPUS:84962022980
SN - 0885-3010
VL - 63
SP - 233
EP - 244
JO - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
JF - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
IS - 2
M1 - 7349221
ER -