Fast and Precise: Real Time MR-guided Prostate Biopsy at 3 Tesla in Animal Experiment.

Discussion Safe and precise instrument guidance was demonstrated with the automatic tracking sequence during insertion of puncture needle and the biopsy device into the prostate at 3 Tesla conditions. The flexible holder allowed accurate placement of the instruments in the target volume. During the entire intervention, no manual and time consuming slice repositioning was needed, and the time needed to insert needle/biopsy device was less than 15 min. The image quality during the procedure was very good with only small artifacts caused by the biopsy devices. This technique might lead to shorter procedure times while preserving precise instrument monitoring and excellent anatomical imaging of the prostate during the procedure. In a next step, clinical study with patients with suspect PSA-levels will be initiated to perform the complete intervention under automatic real-time tracking guidance at 3 Tesla conditions.