TRUS is an abbreviation for which medical imaging technique?

Transrectal ultrasound, commonly abbreviated as TRUS, is a medical imaging technique primarily used to visualize the prostate gland and surrounding tissues. This procedure involves the insertion of a small ultrasound probe into the rectum, which allows for detailed imaging of the prostate and aids in diagnosing conditions such as prostate cancer or benign prostatic hyperplasia. TRUS is particularly valuable because it provides real-time imaging with high resolution, facilitating targeted biopsies and treatment planning.

In contrast, other options like transabdominal ultrasound typically involve evaluating organs from the abdomen's surface, which would not provide the localized views necessary for prostate assessment. Similarly, thyroid resonance ultrasound does not accurately describe any established imaging modality, as thyroid imaging usually employs standard ultrasound techniques rather than a specific category like "resonance." Lastly, total rectal ultrasound scan is not a recognized term in imaging, further distinguishing TRUS as the correct choice among the options.