The CT/MR images poses a real biggie. As a recent case, 5 phases of a liver 3D VIBE, 55 slices each or 275 slices but reconstructed as 20 axial images only 100 slices. Do you keep the MPR's or the original data set to recon from ? or both. Add in the rest of the sequences and...... What about a multi slice CT with 1000 axial imges for a peripheral angiogram. Keep the recons or original data or both or maybe only printed films that you give the patient ? I believe that the lossy compression issue has been covered as far as the amount of compression you can do before the image quality drop is noticeable. I am not sure of the exact figure.
I am not sure of the archive requirementsa on this though
Dieter NSW
At 15:27 31/03/2003 +1000, you wrote:
From: "John Ryan" <[EMAIL PROTECTED]>
Scas, I can't help you with NSW Regs. and I think it varies from State to State. In ACT it is regulated under the Archives Act. While there, in an attempt to reduce the requirement, I put the argument that films are working documents and the report is the permanent record. This was NOT accepted. The question will change in a PACS environment. The question of how long will remain but additional considerations will be how much (all CT slices or a selection, raw data), with losless or lossy compression. Can I pose a second part to your question. Are there any regulations for a PACS environment in any jurisdiction. John Ryan > > > >>> [EMAIL PROTECTED] 03/29/03 10:27am >>> > From: "Scas" <[EMAIL PROTECTED]> > > >JUST WHAT ARE THE LEGAL REQUIREMENTS FOR RETENTION OF X- RAYFILMS >IN N.S.W. PUBLIC HOSPITALS? MANY FILMS LEAVE HOSPITALS (SOME >UNREPORTED) FOR A VARIETY OF REASONS AND MANY NEVER RETURN. IS >THERE ANY REASON THAT WE CANNOT ADOPT THE MORE COST EFFECTIVE >SYSTEM USED IN THE PRIVATE SECTOR OF ISSUING THE FILMS INTO THE >CARE OF THE PATIENT (PERHAPS VIA THE REFERER)? >IS ANYONE OUT THERE DOING THIS ALREADY? >SCAS
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