3D Image Region Selection

{
  "resourceType" : "ImagingSelection",
  "id" : "example-3d-image-region-selection",
  "identifier" : [{
    "system" : "urn:dicom:uid",
    "value" : "urn:oid:1.2.840.113747.20080222.189914271934823329266024988586343.2.1"
  }],
  "status" : "available",
  "code" : {
    "text" : "Region selected from multiframe CT volume"
  },
  "subject" : {
    "type" : "Patient",
    "identifier" : {
      "system" : "https://fhirhospital.org",
      "value" : "PNWYPXNBXMPGMTWX"
    }
  },
  "derivedFrom" : [{
    "type" : "ImagingStudy",
    "identifier" : {
      "system" : "urn:dicom:uid",
      "value" : "urn:oid:1.2.840.113747.20080222.189914271956923329266024988586343"
    }
  }],
  "studyUid" : "1.2.840.113747.20080222.189914271934870656966024988586343",
  "seriesUid" : "1.2.840.113747.20080222.189914271934870659266024988586343.1",
  "frameOfReferenceUid" : "1.2.840.113747.20080222.189914270656923329266024988586343.0",
  "instance" : [{
    "uid" : "1.2.840.113747.20080222.189914271934870656923024988586343.1.0",
    "sopClass" : "urn:oid:1.2.840.10008.5.1.4.1.1.2.1"
  }],
  "imageRegion3D" : [{
    "regionType" : "ellipse",
    "coordinate" : [-50.0,
    -50.0,
    -50.0,
    50.0,
    50.0,
    50.0,
    25.0,
    -25.0,
    0.0,
    -25.0,
    25.0,
    0.0]
  }]
}