Framework for 3D TransRectal Ultrasound

Pierre Mozer (1, 2) , Michael Baumann (1, 3) , G. Chevreau (1, 2) , Vincent Daanen (1) , Alexandre Moreau-Gaudry (1, 4) , Jocelyne Troccaz (5)

1 TIMC-IMAG - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525
2 CHU Pitié-Salpêtrière [AP-HP]
3 INSIDE - INtegrative research unit on Social and Individual DEvelopment
4 CIC - Grenoble
5 TIMC-IMAG-GMCAO - Gestes Medico-chirurgicaux Assistés par Ordinateur

Prostate biopsies are mainly performed under 2D TransRectal UltraSound (TRUS) control by sampling the prostate according to a predefined pattern. In case of first biopsies, this pattern follows a random systematic plan. Sometimes, repeat biopsies can be needed to target regions unsampled by previous biopsies or resample critical regions (for example in case of cancer expectant management or previous prostatic intraepithelial neoplasia findings). From a clinical point of view, it could be useful to control the 3D spatial distribution of theses biopsies inside the prostate. Modern 3D-TRUS probes allow acquiring high-quality volumes of the prostate in few seconds. We developed a framework to track the prostate in 3D TRUS images. It means that if one acquires a reference volume at the beginning of the session and another during each biopsy, it is possible to determine the relationship between the prostate in the reference and the others volumes by aligning images. We used this tool to evaluate the ability of a single operator (a young urologist assistant professor) to perform a pattern of 12 biopsies under 2D TRUS guidance.

Mots clés: GMCAO; prostate biopsies; image registration

Domaines: Autre [cs.OH]; Ingénierie biomédicale

Pierre Mozer, Michael Baumann, G. Chevreau, Vincent Daanen, Alexandre Moreau-Gaudry, et al.. Framework for 3D TransRectal Ultrasound. Johns Hopkins University "Prostate Day", Jan 2008, Baltimore, United States. ⟨hal-00216330⟩