This will require your pet to have his/her abdomen shaved to get a better picture of what may be going on on the inside of your pet. For example, animals that have elevated liver enzymes may have some changes in the liver that would not be seen on an x-rays including changes to the texture of the liver itself, a mass involving the liver, an abnormality of the gall bladder or may appear normal with some other area of the body having an abnormality that could cause elevations in liver enzymes.