How Many Passes of Liposonix and at What Frequency Gives Best Results?

Currently we are treating with three passes at 55-60 Joules. We try to treat with the device set at 60 if at all possible, but sometimes the setting has to be reduced on the second or third pass for patient comfort.

 

 

 

Liposonix is a noninvasive procedure for permanent reduction of localized fat. It uses intense focused ultrasound (HIFU) to target fat tissue. The total amount of energy is measured in Joules, and what we know is that a total of about 150-180 is needed for results. The energy settings on the treatment range from 30 to 60, so high energy setting (more uncomfortable) would be 3 passes, lower energy 4 passes. As far as we know niether version has been proven better in terms of results. The different settings allow it to be tailored to each patient's comfort level.

In my practice we treat patients with 50J stacked pulsed three rounds per square.  It seems (anecdotally) to give patients  more aggressive results.

Studies have shown that one needs to achieve a total energy count of 180kJ. There are various ways to achieve that endpoint, which could be increasing the number of apsses lor increasing the energy settings per pass.

The original studies on Liposonix indicate that results are obtained when a specific amount of energy (about 150 Joules/cm2) is delivered to the fat in order to kill the cells.  We have found the best way to deliver that energy is in three passes (each area is treated 3 times) at one third of the total recommended energy. That gives a nice even result.