Digital Pathology Workflow - Image Acquisition
Digital Pathology Workflow - Image Acquisition (DPIA) is the part of a set of profiles used in the Digital Pathology workflow - this profile supports creation of images from physical specimen e.g., creation of a whole slide image from a histology slide.
Summary
The primary function of the Digital Pathology Image Acquisition workflow is to acquire a digital image from a physical asset, usually a glass slide, but possibly also a gross specimen. Recent advancements in whole slide digital imaging technologies serve to significantly alter traditional workflows within pathology laboratories. Digital imaging in pathology typically spans two primary aspects of the conventional workflow, notably the gross / macroscopic examination and the histologic / microscopic examination.
The Digital Pathology Workflow – Image Acquisition (DPIA) Profile defines workflows and messaging transactions which focus on acquisition of a digital asset from a physical asset
Benefits
Though DICOM images can be created with little accompanying metadata beyond the scanned OCRd barcode from the slide label, they are more useful if they are populated with patient and specimen identifying and descriptive metadata retrieved from the AP-LIS acting in the role of Acquisition Manager.
Details
HL-7 V2 order messages are used for the communication from the Acquisition Manager to the Acquisition Modality (slide scanner), traditional DICOM DIMSE C-STORE transactions are used to send DICOM VL Whole Slide Microscopy Image Storage SOP Instances to the Image Manager/Archive and DICOMweb transactions are used to find and retrieve images for display by the Image Display actor.
Systems Affected
- Acquisition Manager - AP-LIS
- Image Manger/Archive - PACS or VNA
- Image Display - pathologist or histotechnologist viewer or workstation
Actors & Transactions:
Specification
Profile Status: Trial Implementation
Documents:
Digital Pathology Workflow – Image Acquisition (DPIA) - Revision 1.2 – Trial Implementation
Underlying Standards:
See Also
Related Profiles
- [APW] - Anatomic Pathology Workflow integrates ordering, imaging and reporting for basic pathology exams (using DICOM Modality Worklist)
Consumer Information
Implementer Information
- APW_Image_Acquisition Historical work on HL7 DICOM mapping
Reference Articles
Open Issues
Proposed Change Requests: 1 Review handling of query response
2 Communication of stains Currently we are using SPM-6, but that is for the additive, some stains use more than one, field repeats, but that is not how pahtologists think about the stains and also it might be harder to translate into the DICOM header - could create combo substances in SNOMED CT substance hierarchy, but the vocab bound to SPM-6 is HL7 table 0369, so would have to either change binding for that table to user-defined, so that we don't have to use HL70369 concepts where they exist - other option is to use a different attribute to convey this - choices are OBX segment,
This page is based on the Profile Overview Template