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MRI-TRUS fusion biopsy


The key to prostate needle biopsy is to identify the lesion area in the prostate tissue. Currently, three methods are commonly used clinically: transrectal ultrasound (TRUS) image-guided biopsy; magnetic resonance (MRI) assisted biopsy; magnetic resonance and ultrasound fusion (MRI-TRUS) guided biopsy, which usesmp-MRI and real-time ultrasound images to create a fusion image.

TRUSguided biopsy first emerged in the diagnosis of prostate cancer and was widely accepted by clinicians. It is currently the preferred method for diagnosing prostate cancer, but this diagnostic technique is difficult to avoid false negatives, the false positive rate is high, the false negative rate is 22%~47% in the initial biopsy, especially for lesions in the apex of the prostate and around the urethra. However, studies have shown thatMRI-TRUSfusion-guided biopsy increased the number of prostate cancer cases diagnosed by18%, reduced the number of biopsies for low-risk prostate cancer, avoided overtreatment, and improved the detection rate of prostate cancer.