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Tissue-ablation ultrasound therapy systems designed to ablate regions of the prostate. These systems consist of a radio-frequency generator and an applicator including an ultrasonic transducer; some systems combine tissue ablation and ultrasound imaging in a single piezoelectric crystal. The applicators are inserted into the patient\'s rectum and placed adjacent to the prostate gland. Prostatic-ablation ultrasound systems are used for treating benign prostatic hyperplasia and cancer of the prostate.
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