TY - JOUR
T1 - Dual orientation 16-MHz single-element ultrasound needle transducers for image-guided neurosurgical intervention
AU - Button, Timothy
AU - Jiang, Yun
AU - Meggs, Carl
AU - Rodriguez Sanmartin, Daniel
AU - Zhang, Ye
AU - Qiu, Zhen
AU - Mcphillips, Rachael
AU - Mahboob, Syed Osama
AU - Wang, Han
AU - Duncan, Robyn
AU - Schiavone, Giuseppe
AU - Eisma, Roos
AU - Desmulliez, Marc
AU - Eljamel, Sam
AU - Cochran, Sandy
AU - Demore, Christine
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.
U2 - 10.1109/TUFFC.2015.2506611
DO - 10.1109/TUFFC.2015.2506611
M3 - Article
SN - 0885-3010
JO - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
JF - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
ER -