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Proceedings Paper

Rapid calibration method for registration and 3D tracking of ultrasound images using spatial localizer
Author(s): Emad M. Boctor; Ameet Jain; Michael A. Choti M.D.; Russell H. Taylor; Gabor Fichtinger
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Paper Abstract

Conventional freehand 3D ultrasound (US) is a complex process, involving calibration, scanning, processing, volume reconstruction, and visualization. Prior to calibration, a position sensor is attached to the probe for tagging each image with its position and orientation in space; then calibration process is performed to determine the spatial transformation of the scan plan with respect to the position sensor. Finding this transformation matrix is a critical, but often underrated task in US-guided surgery. The purpose of this study is to enhance previously known calibration methods by introducing a novel calibration fixture and process. The proposed phantom is inexpensive, easy to construct, easy to scan, while yielding more data points per image than previously known designs. The processing phase is semi-automated, allowing for fast processing of a massive amount of data, which in turn increases accuracy by reducing human errors.

Paper Details

Date Published: 23 May 2003
PDF: 12 pages
Proc. SPIE 5035, Medical Imaging 2003: Ultrasonic Imaging and Signal Processing, (23 May 2003); doi: 10.1117/12.479953
Show Author Affiliations
Emad M. Boctor, Johns Hopkins Univ. (United States)
Ameet Jain, Johns Hopkins Univ. (United States)
Michael A. Choti M.D., Johns Hopkins Univ. (United States)
Russell H. Taylor, Johns Hopkins Univ. (United States)
Gabor Fichtinger, Johns Hopkins Univ. (United States)

Published in SPIE Proceedings Vol. 5035:
Medical Imaging 2003: Ultrasonic Imaging and Signal Processing
William F. Walker; Michael F. Insana, Editor(s)

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