Modern X-ray machines

[Jim the Geordie]

I notice that medical X-ray diagnostic machines no longer use film, but
some form of digital system.
My dentist uses some sort of 'plate' which is then taken to a device to
transfer it to a computer screen: in the hospital today I saw that it
went directly to the screen.
I have a degree in physics and taught X-ray theory for 40 years, but I
have not got a clue how the non-film system works.
Google searches all seem to be out of date and still describe the use of
film.
Any sheddie who can explain or direct to a useful site that does?

[Tease'n'Seize]

Post by Jim the Geordie
I have a degree in physics and taught X-ray theory for 40 years, but I
have not got a clue how the non-film system works.
Any sheddie who can explain or direct to a useful site that does?

I goove that "scintillation plate" is a useful search term ...

[Sn!pe]

Post by Tease'n'Seize

Post by Jim the Geordie
I have a degree in physics and taught X-ray theory for 40 years, but I
have not got a clue how the non-film system works.
Any sheddie who can explain or direct to a useful site that does?

I goove that "scintillation plate" is a useful search term ...

This page is detailed and interesting, it made me boggle:

<https://www.sciencedirect.com/science/article/pii/S0168900215009754>

[The Nomad]

Post by Sn!pe

Post by Tease'n'Seize

Post by Jim the Geordie
I have a degree in physics and taught X-ray theory for 40 years, but
I have not got a clue how the non-film system works.
Any sheddie who can explain or direct to a useful site that does?

I goove that "scintillation plate" is a useful search term ...

<https://www.sciencedirect.com/science/article/pii/S0168900215009754>

See also

phosphor stimulated plates

Avpx

[The Nomad]

On Tue, 29 Oct 2024 08:08:43 -0000 (UTC), The Nomad

Post by The Nomad

Post by Sn!pe

Post by Tease'n'Seize

Post by Jim the Geordie
I have a degree in physics and taught X-ray theory for 40 years, but
I have not got a clue how the non-film system works.
Any sheddie who can explain or direct to a useful site that does?

I goove that "scintillation plate" is a useful search term ...

<https://www.sciencedirect.com/science/article/pii/S0168900215009754>

See also
phosphor stimulated plates
Avpx

Oh and ...

<https://en.wikipedia.org/wiki/Digital_radiography>


Avpx

[Mike Fleming]

Post by The Nomad
On Tue, 29 Oct 2024 08:08:43 -0000 (UTC), The Nomad

Post by The Nomad

Post by Sn!pe

Post by Tease'n'Seize

Post by Jim the Geordie
I have a degree in physics and taught X-ray theory for 40 years, but
I have not got a clue how the non-film system works.
Any sheddie who can explain or direct to a useful site that does?

I goove that "scintillation plate" is a useful search term ...

<https://www.sciencedirect.com/science/article/pii/S0168900215009754>

See also
phosphor stimulated plates
Avpx

Oh and ...
<https://en.wikipedia.org/wiki/Digital_radiography>

It's very impressive. Mrs Zero [1] went to a hospital on Friday as her
knee is very painful and is about ready for replacement. The consultant
immediately diagnosed a seriously arthritic hip, going just by her gait,
and she was packed off to X-ray to have hip and knee done. Mrs Zero
thought she'd have to wait for a few days to get the X-ray back, but
he'd said to come back to the waiting area. About quarter of an hour
later, he saw her again and showed her (and me, I'd accompanied her) the
X-rays.

Indeed her hip was very bad, as was her knee, but he explained that it
would be best to replace her hip first as trying to do rehabilitation on
a new knee with a bad hip would be far less effective than the other way
round. So she'll be getting a new hip in a few weeks. Looks like it's
time for me to make my annual complaint about mine.

[1] aka SWMBO

[Jim the Geordie]

Post by Sn!pe

Post by Tease'n'Seize

Post by Jim the Geordie
I have a degree in physics and taught X-ray theory for 40 years, but I
have not got a clue how the non-film system works.
Any sheddie who can explain or direct to a useful site that does?

I goove that "scintillation plate" is a useful search term ...

<https://www.sciencedirect.com/science/article/pii/S0168900215009754>

'Boggle' is right.
I can see how this works on the static machine in the hospital, but not
when the 'plate' is not connected and is taken from the patients mouth
to some kind of reader?

[Abandoned Trolley]

Post by Jim the Geordie
'Boggle' is right.
I can see how this works on the static machine in the hospital, but not
when the 'plate' is not connected and is taken from the patients mouth
to some kind of reader?

I asked exactly the same question recently when I had an x-ray done at
the local hospital, and I was told that the individual plates are
connected by wi-fi

I was also told that the department only had 3 plates :-\

I had about 8 images done using the same plate, and I would guess that
there was barely 30 seconds between images (a lot of which was spent
trying to get my wrist in to the correct position) so they must be able
to upload and clear the plate fairly quickly.

[Jim the Geordie]

Post by Abandoned Trolley

Post by Jim the Geordie
'Boggle' is right.
I can see how this works on the static machine in the hospital, but
not when the 'plate' is not connected and is taken from the patients
mouth to some kind of reader?

I asked exactly the same question recently when I had an x-ray done at
the local hospital, and I was told that the individual plates are
connected by wi-fi
I was also told that the department only had 3 plates :-\
I had about 8 images done using the same plate, and I would guess that
there was barely 30 seconds between images (a lot of which was spent
trying to get my wrist in to the correct position) so they must be able
to upload and clear the plate fairly quickly.

Now that makes sense.
Thanks AT

[Jim the Geordie]

Post by Abandoned Trolley

Post by Jim the Geordie
'Boggle' is right.
I can see how this works on the static machine in the hospital, but
not when the 'plate' is not connected and is taken from the patients
mouth to some kind of reader?

I asked exactly the same question recently when I had an x-ray done at
the local hospital, and I was told that the individual plates are
connected by wi-fi
I was also told that the department only had 3 plates :-\
I had about 8 images done using the same plate, and I would guess that
there was barely 30 seconds between images (a lot of which was spent
trying to get my wrist in to the correct position) so they must be able
to upload and clear the plate fairly quickly.

Found this https://hsinfilm.com/phosphor-plates-in-dental-x-rays/

[Tease'n'Seize]

Post by Jim the Geordie
Found this https://hsinfilm.com/phosphor-plates-in-dental-x-rays/

Looks similar size to the old frame of 35zz film they used to use,
probably means they can keep the same X-ray head?

[Tease'n'Seize]

Post by Abandoned Trolley
I asked exactly the same question recently when I had an x-ray done at
the local hospital, and I was told that the individual plates are
connected by wi-fi

I think MikesElectricStuff on U-Bend might have done a teardown
(presumably of an older model)

[nev young]

Post by Abandoned Trolley
I had about 8 images done using the same plate, and I would guess that
there was barely 30 seconds between images (a lot of which was spent
trying to get my wrist in to the correct position) so they must be able
to upload and clear the plate fairly quickly.

I was very distracted when I had a stent fitted in to one of my heart
arteries via a tube inserted in my right wrist. I could see the screen
which showed the progress in real time of the procedure. Really quite
fascinating. But blind bambi how it jbexf.

Same was gehr when "they" tried to remove gall stones via a fistula in
my side.

No anaesthetic was used in either procedure!

[Sn!pe]

Post by nev young
No anaesthetic was used in either procedure!

[shudder] Colour me squeamish.

[Nicholas D. Richards]

Post by Sn!pe

Post by nev young
No anaesthetic was used in either procedure!

[shudder] Colour me squeamish.

If by that he means no general anaesthesia, like in Nelson's day, colour
me dead.

On the other hand, if it is some form of local anaesthesia such as a
Bier's Block, then I am all for it.

A Bier's Block involves a tourniquet at the top of a limb to be operated
on and an intravenous anaesthetic introduced into a vein at the extreme
of the limb. I had a trigger thumb released under just such a
procedure. I was very relaxed (without any tranquilliser) and was
happily chatting to the operating theatre staff. I suffered no pain
during the procedure, less post operative pain than I had expected and
had none of the symptoms associated with a general anaesthetic (I hate
them).

[nev young]

Post by Nicholas D. Richards

Post by Sn!pe

Post by nev young
No anaesthetic was used in either procedure!

[shudder] Colour me squeamish.

If by that he means no general anaesthesia, like in Nelson's day, colour
me dead.

No general. No local. Just "You may feel a sharp scratch".
Blind bambi I was having a heart attack at the time!

[Chris Elvidge]

Post by nev young

Post by Nicholas D. Richards

Post by Sn!pe

Post by nev young
No anaesthetic was used in either procedure!

[shudder] Colour me squeamish.

If by that he means no general anaesthesia, like in Nelson's day, colour
me dead.

No general. No local. Just "You may feel a sharp scratch".
Blind bambi I was having a heart attack at the time!

It always used to be "a little prick". PC and all that, I suppose.

[Sam Plusnet]

Post by Sn!pe

Post by Tease'n'Seize

Post by Jim the Geordie
I have a degree in physics and taught X-ray theory for 40 years, but I
have not got a clue how the non-film system works.
Any sheddie who can explain or direct to a useful site that does?

I goove that "scintillation plate" is a useful search term ...

<https://www.sciencedirect.com/science/article/pii/S0168900215009754>

As a stewed ent, I worked in a department which used X-rays, not on
human flesh but girt big slabs of metal (sometimes a 6 inch thick layer
of mild steel larded over with an inch of stainless).
Done with long exposures and a gamma source.

I preferred to stay away from that stuff and stick to ultrasonics.

[maus]

Post by Sam Plusnet

Post by Sn!pe

Post by Tease'n'Seize

Post by Jim the Geordie
I have a degree in physics and taught X-ray theory for 40 years, but I
scave ahave not got a clue how the non-film system works.
am asheddie who can explain or direct to a useful site that does?

I goove that "scintillation plate" is a useful search term ...

<https://www.sciencedirect.com/science/article/pii/S0168900215009754>

As a stewed ent, I worked in a department which used X-rays, not on
human flesh but girt big slabs of metal (sometimes a 6 inch thick layer
of mild steel larded over with an inch of stainless).
Done with long exposures and a gamma source.
I preferred to stay away from that stuff and stick to ultrasonics.

fairly recent visit to hospital, after signing several papers saying i
had internal metal, copper and steel, i was pushed into a scanner, which
gave gave a scream and stopped, the machine itself sensed the metal,
most of the metal went in over sixty years.

greymaus