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Using ‘obi:value specifications’ for Measurements in Radiology Heiner Oberkampf

Using ‘obi:value specifications’ for Measurements in Radiology Heiner Oberkampf. Legend:. owl:Class. rdf:type. instance. everything in red is to be discussed. 1D Measurements. “Enlarged lymph node with diameter 1.1 cm.”@en. mci:sentence. mci:has textual representation. _:s.

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Using ‘obi:value specifications’ for Measurements in Radiology Heiner Oberkampf

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  1. Using ‘obi:value specifications’for Measurements in RadiologyHeiner Oberkampf Legend: owl:Class rdf:type instance everything in red is to be discussed

  2. 1D Measurements “Enlarged lymph node with diameter 1.1 cm.”@en mci:sentence mci:has textual representation _:s ogms:clinical finding fma:lymph node mci:documented in _:cf iao:is about _:ln Size in PATO: ro:has_part bfo:has quality pato:diameter iao:length measurement datum _:diam-LN iao:is quality measurement of _:md obi:scalar value specification uo:length unit obi:has value specification uo:centimeter _:vs iao:has measurement unit label obi:has specified value “1.1”^^xsd:float We do not create new classes under ‘obi:scalar value representation’

  3. 2D Measurements (I) Proposed Object Properties “Enlarged lymph node with diameter 2.5 x 1.1 cm.”@en mci:sentence mci:has textual representation _:s ogms:clinical finding fma:lymph node mci:documented in _:cf iao:is about _:ln bfo:has quality iao:information content entity ro:has_part pato:diameter :tupel _:diam-LN iao:length measurement datum _:diam-LN2 iao:is quality measurement of obi:scalar value specification _:2d-lmd :has first part uo:length unit _:md :has second part uo:centimeter _:md2 iao:has measurement unit label _:vs obi:has value specification “2.5”^^xsd:float obi:has specified value “1.1”^^xsd:float _:vs2

  4. 2D Measurements (II) Proposed Object Properties “Enlarged lymph node with diameter 2.5 x 1.1 cm.”@en mci:sentence mci:has textual representation _:s ogms:clinical finding fma:lymph node mci:documented in _:cf iao:is about _:ln bfo:has quality ro:has_part pato:area iao:measurement datum _:area-ln iao:is about :tupel obi:scalar value specification _:md uo:length unit obi:has value specification uo:centimeter _:tupel :has first part iao:has measurement unit label _:vs “2.5”^^xsd:float :has second part obi:has specified value “1.1”^^xsd:float _:vs2

  5. NormalSize Specifications

  6. Normal Upper Bound Example: Lymph nodes are normally up to 1 cm. pato:normal iao:information content entity pato:size :normal size upper bound specification pato:length fma:lymph node pato:diameter iao:is quality specification of _:ns _:nd bfo:is quality of _:ln obi:scalar value specification :has value specification uo:length unit uo:centimeter Proposed Classes iao:has measurement unit label _:vs obi:has specified value “1.0”^^xsd:float No object properties added… “The lower/upper/interval/approximate stuff will be probably be useful elsewhere in OBI, so we should think about how to factor it out.” (James)

  7. Normal Interval Example: Normal diameter of the pulmonary atery is between 1.6 and 2.6 cm. pato:normal pato:size pato:length fma:pulmonary atery pato:diameter _:nd bfo:is quality of _:ln iao:is quality specification of :normal size interval specification uo:length unit obi:scalar value specification :normal size upper bound specification uo:centimeter iao:has measurement unit label :has value specification _:nubs _:vs-upper-b “2.6”^^xsd:float _:nsis ro:has part :normal size lower bound specification Proposed Classes :has value specification “1.6”^^xsd:float _:nlbs _:vs-lower-b obi:has specified value

  8. Work in Progress • Orientation of the measurement within the three planes: • longitudinal (cranio-caudal, superior-inferior) • transverse (axial) • antero-posterior • Type of size measurement • length, width, depth, height, thickness… • long/short diameter • Location of the measurement • “Lesion of 1.8 cm in liver segment 6.” • “Diameter of spleen at hilum.”

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