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Noninvasive body sculpting with various devices has been promoted with precious little hard data to support efficacy. In this industry-funded, multicenter, randomized, sham-controlled, single-blind trial, 180 subjects with body-mass index less than 30 kg/m2 and with more than 2.5 cm of subcutaneous fat in the abdomen and flanks underwent one treatment with high-intensity focused ultrasound (LipoSonix). The subjects were randomized to receive three passes at 59 J/cm2 (177 total), 47 J/cm2 (141 total), or 0 J/cm2 (sham treatment) and were followed for 12 weeks. Waist circumference was measured with a tape measure at the top of the iliac crests. No changes in diet or exercise were allowed. No significant changes in weight were observed during …