A literature review is provided concerning the scientific studies that have been published involving high-intensity focused ultrasound (HIFU) as a therapeutic treatment for tumors of the prostate, uterus, and brain. This is a revival of earlier work that now focuses on targeted therapy with sonography, but the studies that have been conducted vary in their level of evidence and translation to clinical practice. The review arranges the published studies by levels of evidence and provides a meta-analysis of the potential for using HIFU to treat prostate cancer, fibroids, and glioblastomas. Human studies are needed that provide clear levels of frequency, intensity, temperature, and treatment patterns. The bioeffects of sonography play a huge role in the destruction of these tumors as well as the potential to cause collateral damage in the surrounding healthy tissue. The hope is that with continued research, a fusion of technology with HIFU can provide patients with a noninvasive, nonionizing therapy for these lesions.
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