Dual Orientation 16-MHz Single-Element Ultrasound Needle Transducers for Image-Guided Neurosurgical Intervention

Yun Jiang, Zhen Qiu, Rachael McPhillips, Carl Meggs, Syed Osama Mahboob, Han Wang, Robyn Duncan, Daniel Rodriguez Sanmartin, Ye Zhang, Giuseppe Schiavone, Roos Eisma, Marc P. Y. Desmulliez, Sam Eljamel, Sandy Cochran, Tim W. Button, Christine E. M. Demore

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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 similar to 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.

Original languageEnglish
Pages (from-to)233-244
Number of pages12
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume63
Issue number2
Early online date8 Dec 2015
DOIs
Publication statusPublished - Feb 2016

Keywords

  • 1-3 composite
  • needle ultrasound transducer
  • neurosurgery
  • HIGH-FREQUENCY-ULTRASOUND
  • BRAIN SHIFT
  • COMPLETE CADAVERS
  • CRYSTAL
  • PRESERVATION
  • FABRICATION
  • MRI

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