Editorial comment

摘要

MR-US fusion biopsy unblinds the blind biopsy, and in this study Sonn et al have continued the process of validating image fusion for TRUS biopsy. MR ultrasound fusion guided biopsies provide more accurate needle localization than "blind" TRUS alone, and do not require the physical presence of a MR gantry. The MR-US fusion biopsy could soon become an important tool for certain patient populations. Clearly defined indications remain speculative, but could include Tic lesions, prior negative TRUS biopsy in the setting of an increasing PSA or lesions identified on MRI. However, standardization and reporting criteria for MR-US fusion are needed, especially to determine whether old criteria validated during the era of TRUS will remain true for MR-US.