Endocavity Balloon
The endocavity balloon or standoff covers the endorectal ultrasound transducer during transrectal procedures, enabling ultrasound scanning. Inflating and deflating the balloon with saline during transrectal scanning assists with positioning the prostate. Use of an endocavity balloon to cover the ultrasound transducer during template-guided transperineal biopsy enables access to the peripheral zone at the level of the prostate base.1
The endocavity balloon is not made with natural rubber latex.
1. https://radiologykey.com/template-mapping-biopsies-an-overview-of-technique-and-results/