A transrectal ultrasound (TRUS) of the prostate may also be called a prostate sonogram or endorectal ultrasound. A doctor usually performs a TRUS to help diagnose prostate cancer or detect prostate ...

Under adequate local anesthesia, the size of the transrectal ultrasound probe made no difference to pain perception during transrectal ultrasound guided prostate biopsy, according to a PubMed report.