Anatomic Pathology Structured Reports

1. Proposed Workitem:

• Proposal Editor: Thomas Schrader, Christel Daniel
• Editor: Christel Daniel, Mary Kennedy, Haitam Kussaibi
• Domain: Anatomic Pathology

2. The Problem

The transaction related to the reporting worflow (PAT3-Order Results Management) of the IHE Anatomic Pathologyt Technical Framework is mainly dedicated to storage and sharing of free text anatomic pathology reports.

There are many initiatives in different countries and/or within standardization bodies (HL7, CEN)aiming at proposing standard structured architecture for anatomic pathology reports.

• CEN TC 251 WI 130.1.1:2003 : A histology report may be divided into sections describing the: macroscopic appearance, microscopic features and the conclusion of the service provider based on these findings. Each of these sections may consist of free-text, measurements (e.g. size, weight etc.) and code values representing the findings.Different healthcare parties may be responsible for different parts of a report. Furthermore, overall responsibility for reviewing and signing-off the reports may rest with yet another supervisory healthcare party.
• CAP Cancer Protocoles and checklists (US)
• INCa (France)
• Royal College (UK), etc)

Generally speaking, according to “evidence-based pathology”, only features that are reproducible and relevant – with a demonstrated diagnostic or prognostic signification – should be reported in description and corresponding evidence available”.

The obective of this white paper is to collect, analyze and summarize these different initiative in order to discuss the available technical solution to store and share strucred reports in anatomic pathology and to choose the most appropriate one.

Confidentiality issues are out of the scope of this white paper

3. Key Use Case

Activity diagrams and strucured reporting will be defined for the use cases already available in the IHE Anatomic Pathology TF

• 1 USE CASE 1: SURGICAL PATHOLOGY – OPERATIVE SPECIMEN
  • 1.1: Surgical pathology – one specimen per container
  • 1.2: Surgical pathology - more than one specimen per container
  • 1.3: Surgical pathology – two requested procedure per order
• 2 USE CASE 2: SURGICAL PATHOLOGY – BIOPSIES
  • 2.1: Biopsies – one specimen per container
  • 2.2: Biopsies – more than one specimen per container
• 3 USE CASE 3: CYTOLOGY
  • 3.1: Cytology – one specimen per container
  • 3.2: Cytology – more than one specimen per container
• 4 USE CASE 4 : AUTOPSY
• 5 USE CASE 5: TISSUE MICRO ARRAY (MORE THAN ONE SPECIMEN FROM MORE THAN ONE PATIENT PER CONTAINER)

4. Standards & Systems

• XDS - CDA
• cf LAB domain
• HL7 v3 : Domaines Laboraory, Specimen, Observation

5. Discussion

Will be especially considered the following issues and barriers :

• Medical consensus is not easy to achieve at regional/national/international level about important features that should be reported as well as the vocabulary and/or code system to use.
• Standard information models (templates) are not available.
• "International" code systems are mainly available in English and ther content coverage with regards to the content of anatomic pathology reports has not been formally evaluated
• Structured reports may be built from different sources(APIS, post processing station ("evidence" creation), etc). A crucial issue is to identify a technical solution to handle templates of structured reports including findings and their evidences. It should be possible to link each observation or finding to the specimen source (part(s) (Box ID) for macroscopic findings, tissue item (Slide ID) for microscopic findings)).
• Moreover it must be possible to link each observation or finding to the image(s) or region of interest of image(s) acquired from the specimen source. Complex diagnostic structured reports include numeric quantitative measurement, images or graphs, image annotation and links between image (and/or evidence) information and textual information.
• Structured reports may be designed for multple uses : patient care but also "secondary use" (clinical research, cancer registries, cancer multi(disciplinary meetings, etc). We have to carefully analyse these different contexts of producing structured reports (workflow) in order to define both templates and IT solution to support these different uses.