View Full Version : Re: MRI Film Digitizing

Robert Day
05-23-2000, 01:59 PM
> We're looking for a fast and cost effective way to digitize MRI
> films
> for computer storage and analyses. Most scanners are not large enough
> to accommodate the 14"X17" image size and medical film digitizers seem
> to be $10,000 and up. Any suggestions would be appreciated.

I may be missing something here, but why not take the original MRI data
and store it, rather than printing out to film and then digitizing? Even
a moderate effort to get the original data will result in MUCH better
quality than you could possibly get from scanning the films.

If for some reason you do have to scan in films, you will be sacrificing
a lot of data. Even supposedly high quality flatbed scanner only return
8 bits (256 levels) of grey-scale data. The original MRI will have a
good 12 bits, and the film probably has most of that.

Having said all that, we are currently looking at a Umax Mirage III A3
scanner for digitizing plane film XRays.
It has good spatial resolution (not really an issue with MRI :-), and
true 8 bit grey-scale resolution up to OD 2.2. Not an ideal machine, by
any means, but it may be serviceable.

The price is somewhere around AUD 6000 (YMMV).


Robert Day robday@rph.health.wa.gov.au
Project Bioengineer ph +61 8 9224 3227
Royal Perth Hospital fax +61 8 9224 1138

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