15 MHz single element ultrasound needle transducers for neurosurgical applications

Yun Jiang, Carl Meggs, Tim Button, Giuseppe Schiavone, Marc P.Y Desmulliez, Zhen Qiu, Syed Mahboob, Rachel McPhillips, Christine E.M Démoré , Graeme Casey, Sam Eljamel, Sandy Cochran, Daniel Rodriguez Sanmartin

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

4 Citations (Scopus)
44 Downloads (Pure)


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 the intraoperative brain deformations and displacements that occur during surgery. In this work, we propose to tackle this issue with the incorporation of an ultrasound device within a biopsy needle that is commonly used as an interventional tool so as to provide immediate feedback to neurosurgeons during surgical procedures. In order to identify the most appropriate path to access a targeted tissue site, needle single element transducers that look both forwards and sideways have been designed and fabricated. Monolithic PZT plates and micro-moulded 1-3 piezocomposites have been adopted as the active materials for feasibility tests. Impedance analysis and pulse-echo testing have been carried out, demonstrating the functionality of the transducers at frequencies of ~15 MHz. The imaging capabilities of these transducers have been studied by wire phantom scans. Variations in the transducer properties as a result of the use of different active materials are discussed.
Original languageEnglish
Title of host publication2014 IEEE International Ultrasonics Symposium
Place of PublicationPiscataway, NJ
Number of pages4
ISBN (Print)9781479970490
Publication statusPublished - 23 Oct 2014
EventIEEE 2014 International Ultrasonics Symposium - Hilton, Chicago, United Kingdom
Duration: 3 Sept 20146 Sept 2014


ConferenceIEEE 2014 International Ultrasonics Symposium
Country/TerritoryUnited Kingdom


  • ultrasound transducers
  • needle transducers
  • 15 MHz
  • neurosurgical application


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