Caregraf

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Conor's Caregraf Blog

Caregraf

A Caregraf is the most succinct, web-friendly way to represent a patient’s health record

What is a Caregraf?

A Caregraf is

a patient’s structured data published according to Linked-Data principles

Yes, it’s a mouthful, but if you’re reading this, then you understand structured patient data – the likes of problem lists, prescriptions, procedures, consultations ordered and their results. You’re aware that machine-processable descriptions of a patient’s health start off in EHRs and all too often remain locked… Read More »

Knowledge in Triples (K3), the first preview

10 to 12% of statements in VistA patient records assert a date.

We refuse no patient care statement – all are welcome. A statement may begin life in an EHR like VistA or in a HL7 v2 message or in the tags of a Continuity of Care Document (CCD), but as long as it asserts something about a patient’s… Read More »

The VA’s 45 billion triples

For us, medical expression boils down to triples, simple subject-predicate-object statements …

    The problem is Hypertension
                   of-patient "Joe Smith"
                   recorded-on 2011-10-21
                   diagnosed-by "Dr Fred Jones"

… one triple after another, capturing a patient’s health, and so a key metric for us is how many triples does a typical patient get? Without a figure, we can’t know how big… Read More »

Good-son Jones’ Diabetic Ma

Mother Jones has diabetes so her son, Good-son Jones, has a family history of diabetes …

:1111 cgo:name "Good-son Jones" .
 
<> cgo:subject :1111  // 1111 is Good-son Jones
      cgo:disorder <http://schemes.caregraf.info/snomed/416855002> // Diabetes mellitus in first degree relative

SNOMED says composed concepts like this are not primitive.

This disorder comes from SNOMED’s situation with explicit context sub-scheme which… Read More »

Let your EHR speak

In our world, the web-of-data, everything is a simple statement, a triple of subject-verb-object. So when we look at an EHR, that’s what we see – statements. Joe is allergic to strawberries, Fred takes Nexium.

Funny enough, the notion that a health-data repository is just a container for statements makes sense to the non-technical: it’s the technical-insiders who balk… Read More »

Conor's Blog

About this Blog

It's a ramble around patient-data representation and exchange, following the mantra to work through examples, don't just talk principles.. Here are the topics ...

About Conor

Conor Dowling is the CTO of Caregraf.

What strikes me is the match: on one side is Linked-Data, the most powerful way to exchange diverse data, and, waiting on the other, too-long unattended, is the volume and diversity of health-data. All they need is a push.