Hello, thanks for contacting HCM with your quiery. HIDA scan is more for function of the gallbladder like it s efficiency in contracting and emptying the bile into the intestine. If you are having symptoms similar to a gallstone attack with severe right upper quadrant abdominal pain, nausea, vomiting etc , the scan would be abnormal. For polyps or stones , ultrasound examination is more sensitive. But if the size of the polyp or stone is less than one centimeter in size , it may not show up well on ultrasound. Typical gallbladder pain may radiate to the right shoulder or the right upper back and usually this is not constant, more like spasms. From the numbers thhat you have given , you seem to have abnormal gallbladder function. This may be associated with abnormal sphincter called the sphincter of Oddi dysfunction. If that is the case , gallbladder removal will help. Remember , your liver continues to make bile and it comes to the intestine directly since the gallbladder which acts as a storage organ is no longer there. If your back problem id due to disc problems of the spine you may have to that evaluated by an orthopedic doctor or a neurology specialist. I wish you the very best.