• 作者：Pierre Mozer¹ ; ² ; ^{pierre.mozer@urology.jhu.edu} ; Michaë ; l Baumann² ; ³ ; Gré ; goire Chevreau¹ ; ² ; Jocelyne Troccaz²
• 关键词：Biopsies de prostate ; fusion d&rsquo ; images ; contrô ; le qualité
• 刊名：Progr¨¨s en Urologie - FMC
• 出版年：2008
• 出版时间：February 2008
• 年：2008
• 卷：18
• 期：1
• 页码：15-18
• 全文大小：823 K

Prostate biopsies are performed under 2D TransRectal UltraSound (US) guidance by sampling the prostate according to a predefined pattern. Modern image processing tools allow better control of biopsy distribution. We evaluated the accuracy of a single operator performing a pattern of 12 ultrasound-guided biopsies by registering 3D ultrasound control images acquired after each biopsy. For each patient, prostate image alignment was performed automatically with a voxel-based registration algorithm allowing visualization of each biopsy trajectory in a single ultrasound reference volume. On average, the operator reached the target in 60 % of all cases. This study shows that it is difficult to accurately reach targets in the prostate using 2D ultrasound. In the near future, real-time fusion of MRI and US images will allow selection of a target in previously acquired MR images and biopsy of this target by US guidance.