One experimental treatment, known as non-invasive body contouring, involves focused ultrasound waves that target that "impossible to diet away" fat found on the hips, thighs, and stomach. There is no incision, each session lasts about an hour, and patients can go right back to work after a treatment
The procedure is not for people who want to get rid of a lot of excess body fat. Instead, it is for those who have isolated areas of extra fat that are not helped by diet and exercise.
Most patients need three or four one-hour treatments. During each session, ultrasound probes massage the skin, causing the fat cells beneath to rupture and die. The body then simply rids itself of the dead cells.