There is currently no liposuction procedure that removes visceral fat. The visceral fat is located beneath the abdominal wall muscles and is surrounded by the intestines and intra-abdominal organs.
Liposuction is effectively a blind procedure that passes a canula through the subcutaneous tissue. This procedure is safe because the canula is kept in the subcutaneous space where there are no critical structures. When a canula is passed underneath the muscle, the potential to injure anatomic structures, increases significantly. For these reasons, intra-abdominal fat can only be removed with weight loss.
In most cases, this involves dieting, but in some cases might involve weight loss surgery. Before proceeding with any treatment regiment, consultation with a plastic surgeon would be appropriate.