3D-Ultrasound probe calibration for computer-guided diagnosis and therapy

Michael Baumann (1, 2) , Vincent Daanen (1) , Antoine Leroy (1, 2) , Jocelyne Troccaz (3)

1 TIMC-IMAG - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525
2 INSIDE - INtegrative research unit on Social and Individual DEvelopment
3 TIMC-IMAG-GMCAO - Gestes Medico-chirurgicaux Assistés par Ordinateur

With the emergence of swept-volume ultrasound (US) probes, precise and almost real-time US volume imaging has become available. This offers many new opportunities for computer guided diagnosis and therapy, 3-D images containing significantly more information than 2-D slices. However, computer guidance often requires knowledge about the exact position of US voxels relative to a tracking reference, which can only be achieved through probe calibration. In this paper we present a 3-D US probe calibration system based on a membrane phantom. The calibration matrix is retrieved by detection of a membrane plane in a dozen of US acquisitions of the phantom. Plane detection is robustly performed with the 2-D Hough transformation. The feature extraction process is fully automated, calibration requires about 20 minutes and the calibration system can be used in a clinical context. The precision of the system was evaluated to a root mean square (RMS) distance error of 1.15mm and to an RMS angular error of 0.61°. The point reconstruction accuracy was evaluated to 0.9mm and the angular reconstruction accuracy to 1.79°.

Mots clés: 3D ultrasound; calibration; free-hand ultrasound

Domaines: Autre [cs.OH]; Imagerie médicale; Ingénierie biomédicale; Imagerie

Michael Baumann, Vincent Daanen, Antoine Leroy, Jocelyne Troccaz. 3D-Ultrasound probe calibration for computer-guided diagnosis and therapy. 2nd International workshop on Computer Vision Approaches to Medical Image Analysis - CVAMIA'06, May 2006, Graz, Austria. pp.248-259. ⟨hal-00214270⟩