GSPS_Sample_Exchange

Overview

The goal of this “test” is to provide samples for other vendors to display. You should submit a “representative sample” of the data produced by your system.

GSPS objects are supported in the Consistent Presentation of Images profile. CPI Evidence Creator actors create GSPS objects (requirement) and may optionally produce images. Likewise, CPI Acquisition Modalities actors create images and GSPS objects.

Each system (Modality or Evidence Creator) should submit samples of the Image and/or GSPS objects. The goal of this test is to prepare Consumer actors (Image Manager, Image Display) so they are not surprised during Connectathon.

In order to facilitate this testing, Creators....please submit your samples 2-3 weeks before the Preparatory test deadlines. 

Sample  Creator(s) Consumer(s)

DICOM image(s)

DICOM GSPS(s)

CPI Acquisition Modality and Evidence Creator

 Image Mgr, Image Display

 

Instructions for DICOM Image and GSPS Creators:

FIRST, prepare the samples-->

Both Modality and Evidence Creator systems must provide samples that include both images and GSPS objects.  Acquisition Modalities will be the source of images for which GSPS objects will be created. 

The GSPS objects and images created by the Modality or Evidence Creator should be of the same genre as those normally generated by the Evidence Creator during expected clinical use.

To insure adequate testing of capabilities, the set of GSPS objects you create should include at least 15 elements drawn from the following GSPS capabilities:

  1. a selection of display area (i.e., zoom)
  2. a spatial transformation (rotation and/or flip)
  3. a discernable adjustment to the Modality LUT, if appropriate to the image object
  4. a discernable adjustment to the VOI LUT
  5. a discernable adjustment to the Presentation LUT
  6. a setting of display shutters (extra worthless brownie points to people who do bitmap shutters)
  7. text annotation boxes
  8. an anchor line associating a text box located in display coordinates with an anchor point in image coordinates
  9. graphical objects in image coordinates
  10. graphical objects in screen coordinates
  11. specification of multiple graphical layers with different suggested colors
  12. frame selection, if the associated image object is multi-frame
  13. specification of mask and contrast frames for subtraction, if appropriate for the image object
  14. a bitmap overlay

SECOND, upload your samples -->

    • Upload sample image and GSPS objects and the screen capture snapshot(s) into Gazelle Test Management under Testing--> Sample exchange. (Refer to these help pages for details on managing samples in Gazelle).
        • On the Samples to share tab, upload your sample image(s) under the GSPS entry.  
        • Under "Actions", use the green triangle icon the validate your DICOM object(s) using Gazelle EVSClient.  We expect a validation result with no errors.
    • If you have this ability, render the objects you produced as a reference. The goal is for an Image Display actor to examine your rendered images/GSPS objects and compare to what their software produces. Perform a screen capture and/or save as JPEG or other reasonable format.  Upload the screenshot into the sample page in Gazelle Test Management.
    • Create a short txt file indicating you have completed the upload step. Upload '''that''' txt file into Gazelle Test Management as the result file for this preparatory test.
    • There is no specific evaluation for this test.  Feedback comes as your partner Image Display and Image Manager partners test with your images in their lab.

Instructions for DICOM Image and GSPS Consumers:

    1. Find sample images & GSPS objects uploaded by other vendors in Gazelle Test Management under Testing -> Sample exchange.    On the Samples available for rendering tab under the GSPS entry, you willl find samples and screen captures submitted by other vendors.  This page will evolve as vendors add samples, so be patient. 
    2. Retrieve the DICOM or zip files created by the other vendors.  Refer to these help pages for details on this task in Gazelle.
    3. Examine/import/render them so that you are confident your software understands the content.
    4. When you are finished, create a .txt or other file that lists the samples you tested with, and a brief comment on your result (eg "ok", or "could not render"). Upload that txt file into gazelle as the result file for this preparatory test.
    5. If you find issues with the images, send an email to the Connectathon Technical Manager.
    6. The evaluation of this test is performed by examining the text you provided to make sure you made a good faith effort to review the sample images. If you find problems with some samples, we will give your feedback to the Modality test partner.
    7. The goal is no surprises.

    Finally, for both Creators & Consumers

    1. In Gazelle Test Management, find the entry for this test instance, and change the status to "Verified by Vendor".  This is a signal to the Technical Manager that you have completed this task.