Abstract
It is proposed that integrating ultrasound transducer arrays at the tip of tools such as biopsy needles could enable valuable, real-time image feedback during interventional procedures. High-resolution ultrasound imaging has the potential to aid navigation of interventional tools, and to assist diagnosis or treatment via in-vivo tissue characterisation in the breast, amongst many other applications. In order to produce miniature transducer arrays incorporated within biopsy needle-sized packages (2 - 5 mm diameter), the challenges in micromachining and handling transducer materials at this scale must be overcome. This paper presents fabrication processes used in the micromachining of a 16 element 15 MHz PIN-PMN-PT piezocrystal-polymer composite array and its integration into an 11 G breast biopsy needle. Particular emphasis is given to the manufacturing of the 1-3 dice-and-fill piezocrystal composite, and establishing electrical interconnects. Characterisation measurements have demonstrated operation of each of the 16 elements within the needle case.
| Original language | English |
|---|---|
| Title of host publication | 2017 IEEE Ultrasonics Symposium (IUS) |
| Place of Publication | United States |
| Publisher | IEEE |
| Pages | 1-4 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781538633830 |
| ISBN (Print) | 9781538633847 |
| DOIs | |
| Publication status | Published - 2 Nov 2017 |
| Event | 2017 IEEE International Ultrasonics Symposium - Washington D.C., United States Duration: 6 Sept 2017 → 9 Sept 2017 http://ewh.ieee.org/conf/ius/2017/ |
Publication series
| Name | IEEE International Ultrasonics Symposium |
|---|---|
| Publisher | IEEE |
| ISSN (Print) | 1948-5719 |
Conference
| Conference | 2017 IEEE International Ultrasonics Symposium |
|---|---|
| Country/Territory | United States |
| City | Washington D.C. |
| Period | 6/09/17 → 9/09/17 |
| Internet address |
Keywords
- array
- needle
- ultrasound transducer
- breast imaging
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