Chest protocol, the transformation

Nanox has been diligent in blurring all protocol-related data from its infomercial and the six accompanying "procedures" videos.  It missed just one bit (8m:54s into the infomercial).

That looks like 90 kVp, 5.8 (or 5.6?) mAs, and 3? tubes for the chest protocol.

During the Business Update in August, the chest protocol looked like 60 kVp, 50 mAs, and 5 tubes (7m:27s into the webcast).

Nanox.Arc was submitted for FDA clearance in June.  

Presumably the device had established protocols and was working at the time, unless Nanox committed fraud.  

But Nanox.Arc was not working last week, as evidenced by the infomercial.

Update:  To be fair, Nanox admitted Nanox.Arc was a "concept device" last week, and a "future product" not yet "regulatory approved" in August.  So, it can't have been a working product in June, with its protocols in hand, when it was submitted for FDA clearance, right?

Update:  A chest scan has to be quick, to avoid blurring from heart movement or breathing.  Movement-related blurring is especially damaging in tomosynthesis reconstruction, unlike in CT.  The faster, the better.  A live human is not a phantom, and can't stay completely still for the duration of the seconds- or minutes-long Arc scan, even if the Arc were real.  A nationwide survey revealed that the exposure time for a chest x-ray is typically about 20 milliseconds, and lower than 10 milliseconds when a digital detector is used.  If the exposure time were 10 milliseconds, then 5.8 mAs translates into about 200 mA tube current (3 tubes) and 50 mAs translates into 1,000 mA tube current (5 tubes).   The Nanox.CART dental tube, that supposedly validated the Nanox technology, could do just 2 mA (per 510K summary) and only at significantly-lower 40 kVp, according to Nanox, and it still required "liquid" cooling.  Just another way of showing that Nanox.Arc is still a fake.