Good question!
Full body scanning is expensive, and in some cases not that higher resolution. CT full body scans are cheap and high resolution, but you are being blasted with Xrays for long periods. So there is a not inconsiderable health implication.
To get good data, ideally you need to have a longitudinal study, as in you measure people monthly/weekly and then correlate that to life outcomes. The ethical issue is that you'll see lots of lumps and bumps growing, and this could lead to lots of invasive checks. You can't not check because that's not fair "here is something that looks like cancer, if we grab it now it will stop you needing chemo. But it could just be a cyst."
So, its really really expensive to have 100k people getting monthly full body MRIs for 10+ years. Even more expensive to get them at the right resolution.
I think, that if these scanners are good and that is _Very much_ not proven. Then having a long term study would be good. I however have deep misgivings about how effective field array ultrasonic scans are, also safety.
I also do not trust midjourney, a company that exists through large scale copyright infringement to handle that data safely, ethically or in a way that would allow decent science to be done from it.
The entire point of this machine seems to be to do non-invasive scans that don't have the type of side effects that constant CT scans would have and which are vastly cheaper and easier to do than MRI so that you can collect longitudinal data on any/all individuals.
Finding "lumps and bumps" or incidentalomas may be much less of a problem if you can keep a close eye on them without using CT or MRI, maybe your doctor would want a follow up MRI as a closer look but if it seems likely benign they could easily recommend you to just keep scanning with this ultrasound machine and only get another MRI or biopsy if it seems to develop in a malignant way.
The mistrust of private individuals and companies is a harmful belief when it comes to the development of new medical technology. Many groundbreaking devices were developed through the efforts of individuals, including the MRI.
> The mistrust of private individuals and companies is a harmful belief
the full body MRI was developed in the NHS/university along with CT scanners. But let us not pretend that modern companies have been acting in a way that is ethical. OR that there exists a legal framework that fights for the rights of normal people.
> incidentalomas may be much less of a problem if you can keep a close eye on them without using CT or MRI
They are a problem because we have no real data on cancer incidents that don't develop. (https://ima.org.uk/24626/making-sense-of-cancer-with-profess... buried in this article)
Biopsies are not risk free. General anaesthetic carries a risk. You'll be on antibiotics, the wound will have an infection risk. Also the build up of scar tissue is a real issue.
This is the ethical issue. Because suspicious lumps will need investigation, no ethics board is going to allow not investigating.
This also fucks up the data.
Its not impossible, but it needs sensible thought, thought from actual medical professionals, rather than a company who is at best operating in a legal grey zone.