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Proceedings Paper

Mechanically assisted 3D prostate ultrasound imaging and biopsy needle-guidance system
Author(s): Jeffrey Bax; Jackie Williams; Derek Cool; Lori Gardi; Jacques Montreuil; Vaishali Karnik; Shi Sherebrin; Cesare Romagnoli; Aaron Fenster
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Paper Abstract

Prostate biopsy procedures are currently limited to using 2D transrectal ultrasound (TRUS) imaging to guide the biopsy needle. Being limited to 2D causes ambiguity in needle guidance and provides an insufficient record to allow guidance to the same suspicious locations or avoid regions that are negative during previous biopsy sessions. We have developed a mechanically assisted 3D ultrasound imaging and needle tracking system, which supports a commercially available TRUS probe and integrated needle guide for prostate biopsy. The mechanical device is fixed to a cart and the mechanical tracking linkage allows its joints to be manually manipulated while fully supporting the weight of the ultrasound probe. The computer interface is provided in order to track the needle trajectory and display its path on a corresponding 3D TRUS image, allowing the physician to aim the needle-guide at predefined targets within the prostate. The system has been designed for use with several end-fired transducers that can be rotated about the longitudinal axis of the probe in order to generate 3D image for 3D navigation. Using the system, 3D TRUS prostate images can be generated in approximately 10 seconds. The system reduces most of the user variability from conventional hand-held probes, which make them unsuitable for precision biopsy, while preserving some of the user familiarity and procedural workflow. In this paper, we describe the 3D TRUS guided biopsy system and report on the initial clinical use of this system for prostate biopsy.

Paper Details

Date Published: 23 February 2010
PDF: 8 pages
Proc. SPIE 7625, Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling, 76252Q (23 February 2010); doi: 10.1117/12.844435
Show Author Affiliations
Jeffrey Bax, Robarts Research Institute (Canada)
Univ. of Western Ontario (Canada)
Jackie Williams, Robarts Research Institute (Canada)
Derek Cool, Robarts Research Institute (Canada)
Lori Gardi, Robarts Research Institute (Canada)
Jacques Montreuil, Robarts Research Institute (Canada)
Vaishali Karnik, Robarts Research Institute (Canada)
Univ. of Western Ontario (Canada)
Shi Sherebrin, Robarts Research Institute (Canada)
Cesare Romagnoli, Robarts Research Institute (Canada)
Univ. of Western Ontario (Canada)
Aaron Fenster, Robarts Research Institute (Canada)
Univ. of Western Ontario (Canada)

Published in SPIE Proceedings Vol. 7625:
Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling
Kenneth H. Wong; Michael I. Miga, Editor(s)

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