What happens if you do liposonix in less than one inch of fat?

The Liposonix treatment takes advantage of
revolutionary “smart technology”: the gentle ultrasound waves travel through
the superficial skin without any noticeable interference on the surface. But
deep within the fatty tissue layers, the ultrasound is bundled to a powerful
beam that melts and permanently destroys unwanted fat cell. Treatment depth is
about 1 cm (just short of ½ inch) and it is therefore very unlikely that it negative
affect the efficacy of your treatment.

The liposonix beam is calibrated to work at 1.3 cm below the skin surface.  This is less than inch and you should be fine.  Below the fat is muscle which is highly vascularized and typically unaffected by the beam. 

Liposonix uses focused ultrasound, which means that the energy waves converge at a specific focal point, like light focused through a lens. This produces a burst of heat that disrupts the fat cells. An inch is about 2.5 centimeters, and the focal point for Liposonix is at a depth of 1.3 cm and about 1 cm thick. If there is less than an inch of fat, the focal point will be on the muscle, bone, or whatever tissue is at that depth under the skin and it could cause significant damage. You would know if this occurred however so it sounds like your treatment was done properly.

It is unlikely that there will be any problem. The device does not send energy deep enough to damage the muscle. You should be fine. Hopefully you will get some additional fat reduction!

Liposonix is designed to go down to 1.3cm below the skin which is a ted more then half an inch.  So even if you did not have a full inch of fat to pinch of, it is highly unlikely that the US was hitting the muscle.  Most people will have at least 1.3cm worth of fat below their skin. 

Liposonix focuses high intensity ultrasound at a depth of
1.3 cm below the surface of the skin. The recommendation to be able to pinch an
inch of fat in order to treat with Liposonix is a rough guideline. You would have
to be quite thin to have less than 1.3 cm of adipose on the belly. It is highly unlikely that there will be
undesirable consequences from the situation you refer to.