My understanding is that's not how ultrasound works?
CT and MRI give pretty clean images that even a layman can understand. I have no problem identifying things on them.
Ultrasound is looking for a vague voxel of density that is or isn't where it's supposed to be. The implies that you need to know what the density looks like when it's normal vs abnormal. It's more like "Your liver is supposed to be there but there is a blob of water instead. Let's get you a CT scan." If it's abnormal, then you go confirm with a high-resolution scan system.
This has a LOT of room for error. Ultrasound is how they identify gallstones, but, in my case, the ultrasound said "Yeah, you've got some gallstones, but no big deal." When they removed them after my gallbladder exploded, they were almost an inch and a half across. The problem is that gallstones are mostly just globs of cholesterol that isn't much diferent in density from the surrounding fluid.
Ultrasound is okay, but cheaper, smaller, faster CT/MRI systems that don't need contrast dye would enable far better diagnosis as it would put imaging much closer to office physicians.
CT and MRI give pretty clean images that even a layman can understand. I have no problem identifying things on them.
Ultrasound is looking for a vague voxel of density that is or isn't where it's supposed to be. The implies that you need to know what the density looks like when it's normal vs abnormal. It's more like "Your liver is supposed to be there but there is a blob of water instead. Let's get you a CT scan." If it's abnormal, then you go confirm with a high-resolution scan system.
This has a LOT of room for error. Ultrasound is how they identify gallstones, but, in my case, the ultrasound said "Yeah, you've got some gallstones, but no big deal." When they removed them after my gallbladder exploded, they were almost an inch and a half across. The problem is that gallstones are mostly just globs of cholesterol that isn't much diferent in density from the surrounding fluid.
Ultrasound is okay, but cheaper, smaller, faster CT/MRI systems that don't need contrast dye would enable far better diagnosis as it would put imaging much closer to office physicians.