Thats a very generous view on the current state of POCUS. I don't believe this has been studied yet but the % of patients who undergo POCUS in the ED (which is billed for) and leave without formal imaging in the radiology department (also billed for) is probably in the single digits.
Irrespective of their findings, clinicians are not yet confident enough to discharge their patient on the basis of their negative POCUS nor are surgeons confident enough in the clinician skills to operate on positive POCUS findings (except FAST). Hopefully this will slowly improve over time, particularly if AI can play a role in procuring adequate images, but ultrasound is a hard skill to master (sonographers do this day in and day out, a lot more skillful than myself as a radiologist let alone a clinician with an underpowered POCUS).
Conversely, there is a non-trivial amount of unnecessary imaging generated as a result of POCUS findings (perhaps most significantly for aortic dissection which is a high dose CT scan). Out of ~100 CT studies I've reported that come with the history 'dissection/intimal flap on POCUS' 0 have been positive, and had the clinician gone purely on the clinical picture + labs they would have probably not ordered the CT in most of these cases.
Irrespective of their findings, clinicians are not yet confident enough to discharge their patient on the basis of their negative POCUS nor are surgeons confident enough in the clinician skills to operate on positive POCUS findings (except FAST). Hopefully this will slowly improve over time, particularly if AI can play a role in procuring adequate images, but ultrasound is a hard skill to master (sonographers do this day in and day out, a lot more skillful than myself as a radiologist let alone a clinician with an underpowered POCUS).
Conversely, there is a non-trivial amount of unnecessary imaging generated as a result of POCUS findings (perhaps most significantly for aortic dissection which is a high dose CT scan). Out of ~100 CT studies I've reported that come with the history 'dissection/intimal flap on POCUS' 0 have been positive, and had the clinician gone purely on the clinical picture + labs they would have probably not ordered the CT in most of these cases.
Also ultrasound can't penetrate lungs.