PERF Evaluation

CT/MR Perfusion Imaging with Contrast (PERF) Final Text Evaluation

Reviewed by IHE RAD Tech on April 3, 2025:

Proposal

The CT/MR Perfusion Imaging with Contrast profile has been nominated for advancement to Final Text. (Advocate: Wim Corbijn) Per the Final Text Process, Items in blue text below warrant Committee discussion.

Technical Committee Checklist

Decision:

• Are all significant CPs against the profile "closed"?
  • Currently no active CPs

• Are all significant CPs against the underlying standards "closed"?
  • Currently no active CPs. DICOM has been checked.

• Have all significant comments been CP'd or rejected?
  • No open comments identified

• Have all open issues listed in the Supplement been closed?
  • No open issues, all issues are closed.

• Have all significant issues at Connectathon been dealt with?
  • not aware of any issues left from the Connectathons.

• Feedback from implementers.
  • No further feedback identified. Latest testing done in 2014 and 2017 Connectathons.

• Has the Connectathon Project Manager been queried and significant issues addressed?
  • Yes

Technical Committee Consensus

• It is proposed that the profile ...

Planning Committee Checklist

• Has the profile been through a Connectathon in at least two regions?

• No. North America only. RAD Tech discussed and decided that this is not a barrier to FT because it was fully tested in NA and we don't expect regional variations in implementations for this profile. 10+ years have passed and we don't expect additional testing.

• Has the profile been successfully tested with all actors at least at one Connectathon?

• Yes. NA Connectathon 2014

• Have different implementations of each actor in the profile been tested?

• Modality: Hitachi MR, Philips MR
  • Note: No CT modality has tested PERF at a Connectathon
• Image Display: GE
• Image Manager: Karos, Dell, Tiani-Spirit

• Have all the options been tested successfully at at least one Connectathon?

• Profile does not define any options

• Are there IHE-provided software testing tools to address all aspects of the profile?

• No
• TO DO: Lynn to determine whether any test images exist. Wim indicated that Philips could produce these. Perhaps Sharazone is a source

• Have the standards underlying the profile been implemented? In similar use cases? In healthcare? In general IT?

• (Do you have concrete reason to believe that this works robustly in the Real World) / (Are any products available for purchase that implement the profile?)

• Have all issues that may have been raised about the profile been resolved?

• Has there been sufficient interest in the profile to generate a one-page overview of the profile

• Yes: https://wiki.ihe.net/index.php/CT/MR_Perfusion_Imaging