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

This text discusses the use of 'obi:value.specifications' for measurements in radiology, specifically focusing on 1D and 2D measurements. It also proposes object properties and normal size specifications. Work in progress on measurement orientation and types of size measurement is mentioned.

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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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