Prostate Segmentation Challengeand MR-guided Prostate Biopsy

Haytham Elhawary, Nobuhiko HataBrigham and Women’s Hospital and Harvard Medical School, Boston, MA

Gabor Fichtinger Queens University, Canada

Contesntants

Albert Gubern-Merida and Robert Marti,

University of Girona, Girona, Spain

Jason Dowling, Jurgen Fripp, Peter Greer, Olivier Salvado

AEHRC CSIRO, Australia

Sebastien Ourselin

UCL, UK

MRI-guided prostate biopsy and brachytherapy

• Signa SP 0.5 T• General anesthesia

used• Lithotomy position,

Transperineal approachusing template

• Procedure duration: 3 hours

• Patient discharged to home on day of procedure

Why Prostate Segmentation

• Pre-Processing for pre-op and intra-op deformable registration

•Intra-operative brachytherapy planning

•Endoscopic Prostatectomy

Pre-Processing for pre-op and intra-op deformable registration

Prostatectomy

Brahytherapy program

Contouring PZ, urethra and rectum

Axial T2W image Treatment plan

Results

  DSC HDCase

1 0.77 0.84 7.10 9.903 0.64 0.83 15.80 10.004 0.82 0.62 8.28 19.245 0.62 0.84 15.80 6.67

Average 0.71 0.78 11.75 11.45Std 0.10 0.11 4.71 5.42

t-test 0.25   0.48  

Results

  DSC HDCase Marti Dowling Marti Dowling

1 0.77 0.84 7.10 9.903 0.64 0.83 15.80 10.004 0.82 0.62 8.28 19.245 0.62 0.84 15.80 6.67

Average 0.71 0.78 11.75 11.45Std 0.10 0.11 4.71 5.42

t-test 0.25   0.48  

Prize

First PlaceJason Dowling, Jurgen Fripp, Peter Greer,

Olivier SalvadoAEHRC CSIRO, Australia

Sebastien OurselinUCL, UK

Second PlaceAlbert Gubern-Merida and Robert Marti,

University of Girona