NDLI: Accurate calibration method for 3D freehand ultrasound probe using virtual plane.

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Accurate calibration method for 3D freehand ultrasound probe using virtual plane.

Content Provider	Semantic Scholar
Author	Lorenzo, Danilo De Vaccarella, Alberto Khreis, Ghassan Mönnich, Holger Ferrigno, Giancarlo Momi, Elena De
Copyright Year	2011
Abstract	PURPOSE In this paper a new, easy-to-manufacture and easy-to-use ultrasound (US) probe calibration phantom for 3D freehand scanning is presented and evaluated, together with a new method for achieving an accurate and user-robust calibration using virtual plane. METHODS The phantom allows the optically tracked US probe to perform two rotations and two translations while keeping the image of a tensioned wire in the image plane. This approach allows obtaining a sharp image of the wire independently from the probe pose. The virtual plane allows the calibration algorithm to converge minimizing the required number of US probe tracked poses. The US image and position data are synchronized via a CORBA interface, created within the Image Guided Surgery Toolkit (IGSTK) framework. The calibration algorithm and the calibration protocol were evaluated in a set of experiments carried out by different test-users. RESULTS The calibration method proved to be accurate and precise: 3D point reconstruction accuracy resulted 0.2 mm as mean value, while the precision was 0.4 mm as standard deviation. CONCLUSIONS The technique showed to be suitable for medical applications from morphological diagnosis to intraoperative surgical planning adaption.
File Format	PDF HTM / HTML
DOI	10.1118/1.3663674
PubMed reference number	22149853
Journal	Medline
Volume Number	38
Issue Number	12
Alternate Webpage(s)	https://core.ac.uk/download/pdf/55217127.pdf
Alternate Webpage(s)	https://doi.org/10.1118/1.3663674
Journal	Medical physics
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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