[53571] in North American Network Operators' Group
Re: PAIX
daemon@ATHENA.MIT.EDU (Jere Retzer)
Mon Nov 18 13:54:35 2002
Date: Mon, 18 Nov 2002 10:45:55 -0800
From: "Jere Retzer" <retzerj@ohsu.edu>
To: <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
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David Diaz >>>
I just asked, and "you can video clip images,...85megs is typical"
At 12:46 -0500 11/18/02, David Lesher wrote:
>Any idea how large these images are? I seem to recall that
>they are massive, given ultra-hi-rez data....
>
>(Are they attaching them to lookOut mail ;-?)
>
>And the radiologist may look for a few seconds at best so he
>is NOT going to want to wait....
Try asking any radiologist, cardiologist, oncologist how much quality is =
good enough and they will probably say "it depends." Digital mammography =
is potentially hundreds of megabytes =AF and you sure don't want to miss =
(or insert any extra) white spots! What we're seeing is higher and higher =
resolution combined with "longitudinal" (ie, over time) recording and in =
some cases additional 'dimensions' added using color and so on, and on top =
of that the ability to look at various depths, rotate, three spatial =
dimensions. So, for example a live echocardiogram today will use color as =
an indication of the "force" of the heart beat. MRIs typically record =
data at three dimensions. As we approach micron-level resolution the file =
size grows into the petabytes. No, I did not make a mistake there. =
Currently, no one even stores these but they will want to in time. Given =
our demands for instant feedback on our health these kinds of applications =
will eventually become more real time. One internationally recognized =
teaching hospital in the upper midwest advertises that all their x-rays =
are read by a radiologist within 30 minutes.
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<DIV> David Diaz >>><BR><BR>I just asked, and "you can =
video=20
clip images,...85megs is typical"<BR><BR><BR>At 12:46 -0500 11/18/02, =
David=20
Lesher wrote:<BR>>Any idea how large these images are? I seem to =
recall=20
that<BR>>they are massive, given ultra-hi-rez data....<BR>><BR>>(A=
re=20
they attaching them to lookOut mail ;-?)<BR>><BR>>And the radiologist=
may=20
look for a few seconds at best so he<BR>>is NOT going to want to=20
wait....</DIV>
<DIV> </DIV>
<DIV>Try asking any radiologist, cardiologist, oncologist how much quality =
is=20
good enough and they will probably say "it depends." Digital mammography =
is=20
potentially hundreds of megabytes — and you sure don't want to miss =
(or insert=20
any extra) white spots! What we're seeing is higher and higher resolution=
=20
combined with "longitudinal" (ie, over time) recording and in some =
cases=20
additional 'dimensions' added using color and so on, and on top of that =
the=20
ability to look at various depths, rotate, three spatial dimensions. So, =
for=20
example a live echocardiogram today will use color as an indication of =
the=20
"force" of the heart beat. MRIs typically record data at three =
dimensions.=20
As we approach micron-level resolution the file size grows into the =
petabytes.=20
No, I did not make a mistake there. Currently, no one even stores these =
but they=20
will want to in time. Given our demands for instant feedback on our =
health=20
these kinds of applications will eventually become more real time. One=20
internationally recognized teaching hospital in the upper midwest =
advertises=20
that all their x-rays are read by a radiologist within 30=20
minutes.</DIV></BODY></HTML>
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