DICOM Server and DICOM Toolkit new Release 2.0.2.8

The last couple of weeks were very busy with many installations of HRZ DICOM Server all over the world. It turned out to be a product that many people were waiting for and we've been busy with installations and support work. Naturally, many issues were found and fixed. These fixes and improvements were gathered into the last release that is now available online. It was great fun to see that people liked the idea of the server and modified and customized the database mappings to meat their own requirements. For me this was the best indication that the product concept is really working.

Release 2.0.2.8

A new release is ready on the DICOM downloads page. This release addresses couple of bug fixes and improvements to the DICOM Server and DICOM Toolkit. Many of these changes were initiated by customers requests and I would like to thank you for the feedback and bug reports.

Patches to the Modality Worklist Database

It turns out that the Modality Worklist Server draws a lot of attention and that there were couple of glitches in the last release. The main issue comes from date and time columns in the database (i.e. datetime sql type). Until this is fixed in the DICOM Database Plugin, here's a little patch that maps the database date and time fields to valid DICOM date and time formats.

The DICOM date format is YYYYMMDD and the DICOM time format is HHMMSS.TTT or HHMMSS

Another issue that is going to be solved in the next release is the case sensitive column names. This means that in order to add more fields to your MWL C-FIND Response, you should add the columns to the view exactly as they are named in the toolkit dictionary with the correct case. This problem was in the last build modality field that should have been Modality with a capital M.

DSRSVC DICOM Modality Worklist Server - Update

I got a response that the Database plugin for the DICOM Server crashes. Where was a problem in DICOM Database Plugin that didn't export the configuration symbol and as a result the server didn't pick it up.
This problem is now fixed and the new build is available on the download page. If you've downloaded version 2.0.2.2, please download version 2.0.2.3 instead.
I would like to thank Igor that found this problem and reported it to me.

DICOM Modality Worklist Server

HRZ DICOM Server is in use for many years in my custom software projects. It's a windows based service that is easily installed and configured. I've been using it since 2008 for various purposes and it is now a very stable and reliable software.
In this post I'm going to present its use as a Modality Worklist Server (or in short MWL SCP), explain how to install the software and how to configure the database to match your needs. Then, on the next post, I'm going to combine it together with processing HL7 order message to schedule a new work item. This will close the gap between HL7 and DICOM and we'll have most of the parts of IHE's radiology schedule workflow (SWF) integration profile.

What's the difference between a DICOM Server and a PACS?

Throughout the years, as PACS evolved, there were many debates about what is the feature set that makes a PACS? Does it have to have a Viewer? Does it have to provide all DICOM services? Should it have HL7? Many questions and even more answers. Calling it a DICOM Server is a laundry cleaning bypass of all that. It's a DICOM Server meaning it serves requests for DICOM Clients. What services does it provide? DSRSVC is a Storage SCP by default and you can add more services to it as you like using a plugin API. In the download page you'll find two plugins. The INI file plugin provides configuration for the storage service. The MS SQL Server DICOM Database Plugin adds:

• Query/Retrieve SCP, 
• Storage Commitment SCP and 
• Modality Worklist SCP

Throughout the years it was used in all kind of applications, as an inbox for web viewer, as a CAD engine, as a departmental archive, as a proxy, as a bridge, and many more.

If you're looking to speed up development and use an off-the-shelf software product that you can easily extend, customize and integrate with your system, read on.