I don't really know. For some of the ct scans a doctor here said they liked when a person drinks water because there is more differentiation between the different organs and such. I don't know if ultrasounds would be any different. Have you tried the triclabendazole or egaten for the flukes. It should help barring any resistance issues. Stay away from anything that has lecithin in it would be my advice. I really think living in countries like mexico or latin America makes a lot of sense for people dealing with chronic parasite problems. There are just so many more resources there. If I had to rely on medical care in the u.s. I would be dead by now. It was not any help at all, except maybe the Chinese medicine clinics that is. Also the cost, I can get an ultrasound in tj for 12 dollars. Or, can get one for 50 that has the large film included with it. There's just more resources to choose from.