I agree with your assessment. In my experience, ultrasound has revolutionized trauma care - basically getting rid of the invasive Diagnostic Peritoneal Lavage

I agree with your assessment. In my experience, ultrasound has revolutionized trauma care - basically getting rid of the invasive Diagnostic Peritoneal Lavage (where they put a needle in the abdomen, inject liquid, suck it out, and then see if it has blood in it). Other examples where it can be used in a primary care setting: 1. Carotid stenosis (narrowing) - we know that this can be a cause of stroke and listening by stethoscope is likely useless (the really narrowed arteries don't produce much noise). Having ultrasound that is cheap and accessible might help catch more of these cases in a primary care setting 2. Heart defects resulting in athlete sudden deaths. Having a primary care doctor evaluate an athlete's heart during a sports physical with ultrasound might help catch some of these cases. 3. Outpatient evaluation of deep vein thrombosis in sedentary populations. This is important because this can help stop blood clots to the lungs. However, as with your examples, these use cases all involve a medically trained operator. Like you, I am not seeing a lot of potential consumer use cases.