{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "Ktrans, the volume transfer constant of a tracer diffusion kinetic model, specifically the volume transfer constant between blood plasma and extravascular extracellular space (EES) See Tofts et al, \\\"Estimating Kinetic Parameters From Dynamic Contrast-Enhanced T1-Weighted MRI of a Diffusable Tracer: Standardized Quantities and Symbols\\\", Journal of Magnetic Resonance Imaging, vol. 10, pp. 223-232, 1999",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "5f336dd4-db81-5653-939a-25648922f08e",
  "concept_id" : "714af924-93ca-547d-a446-a5193f63aa55",
  "ancestors" : {
    "126312" : 0
  },
  "id" : "5bdf0518-b757-48e5-85d7-18f7c37f2020",
  "code" : "126312",
  "display" : "Ktrans",
  "version" : "01"
}