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A probe inserted in the rectum emits sound waves in order to image the prostate
Transrectal ultrasonography, or TRUS in short, is a method of creating an image of organs in the pelvis. The most common indication for transrectal ultrasonography is necessity of evaluation of the prostate gland in men with elevated prostate specific antigen or prostatic nodules on digital rectal exam. TRUS may reveal prostate cancer, benign prostatic hypertrophy, or prostatitis. It may also be used to help guide a biopsy of the prostate.
- O' Donoghue PM, McSweeney SE, Jhaveri K (2010). "Genitourinary imaging: current and emerging applications". J Postgrad Med. 56 (2): 131–9. doi:10.4103/0022-3859.65291. PMID 20622393.
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