Transrectal ultrasound prostate biopsy tracking with efficient and accurate deformation estimation

Michael Baumann (1, 2) , Pierre Mozer (3) , Vincent Daanen (2) , Jocelyne Troccaz (4)

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 CHU Pitié-Salpêtrière [AP-HP]
4 TIMC-IMAG-GMCAO - Gestes Medico-chirurgicaux Assistés par Ordinateur

Prostate cancer is the most frequent cancer for men and the second cause of cancer death. Confirmation of cancer requires transrectal prostate biopsies. Tracking systems for transrectal prostate biopsies make it possible to generate biopsy distribution maps for intra- and post-interventional quality control, 3D visualisation of histological results for treatment planning, and to guide clinicians toward nonultrasound (US) targets. In this paper, a 3D US based tracking system for fast and accurate estimation of nonlinear prostate tissue deformation is proposed. Linear elasticity and inverse consistency a priori models are used to improve performance. A variant of the SSD image distance measure is proposed for filtering of local intensity shifts, which are frequent in US images. System accuracy was evaluated to 0.83+/-0.54 mm using point fiducial on 295 US volumes from 18 patients.

Mots clés: tracking; 3D ultrasound; prostate biopsy; registration

Domaines: Autre [cs.OH]; Imagerie

Michael Baumann, Pierre Mozer, Vincent Daanen, Jocelyne Troccaz. Transrectal ultrasound prostate biopsy tracking with efficient and accurate deformation estimation. IEEE International Symposium on Biomedical Imaging, Jun 2009, Boston, United States. pp.1211-1214. ⟨hal-00410875⟩