The Effects of Low-Intensity Ultrasound on Fat Reduction of Rat Model.

Nonfocused low-intensity ultrasound is generally believed to be less efficacious than High-Intensity Focused Ultrasound (HIFU) at body fat reduction; nevertheless, this technology has already been widely used clinically for body contouring purposes. This study aimed to evaluate the efficacy and safety of this new technology by applying 1 MHz nonfocused ultrasound at 3 W/cm to the outer-thigh region of rat models. Ultrasonography measurement demonstrated an average reduction of 0.