Automated 3D freehand ultrasound calibration with real-time accuracy control

TitleAutomated 3D freehand ultrasound calibration with real-time accuracy control
Publication TypeJournal Article
Year of Publication2006
AuthorsChen, T. K., P. Abolmaesumi, A. D. Thurston, and R. E. Ellis
JournalMed Image Comput Comput Assist Interv
Volume9
Pagination899-906
Abstract

3D ultrasound (US) is an emerging new imaging technology that appeals to more and more applications in intraoperative guidance of computer-assisted surgery. In a freehand US imaging system, US probe calibration is typically required to construct a 3D image of the patient's anatomy from a set of 2D US images. Most of the current calibration techniques concern primarily with the precision and accuracy. However, for computer-assisted surgeries that may require a calibration task inside the operating room (OR), many other important aspects have to be considered besides accuracy. In this paper, we propose a novel system for automated calibration that is optimized for the OR usage with real-time feedback and control of the calibration accuracy. We have also designed a novel N-wire phantom, with greatly reduced complexity to facilitate mass production without compromising the accuracy and robustness.

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