<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="bdf054e9-7817-4233-9919-1072ae8d5017" />
  <meta>
    <lastUpdated value="2020-03-09T05:42:57.055+00:00" />
  </meta>
  <url value="http://example.org/fhir/StructureDefinition/MRIExtension" />
  <name value="MRIExtension" />
  <status value="draft" />
  <date value="2020-03-09T05:43:43.3859135+00:00" />
  <fhirVersion value="4.0.0" />
  <mapping>
    <identity value="rim" />
    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
  </mapping>
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Observation" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Extension.extension:HIR_index">
      <path value="Extension.extension" />
      <sliceName value="HIR_index" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:HIR_index.url">
      <path value="Extension.extension.url" />
      <fixedUri value="HIR_index" />
    </element>
    <element id="Extension.extension:HIR_index.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="decimal" />
      </type>
      <minValueDecimal value="0" />
      <maxValueDecimal value="1" />
    </element>
    <element id="Extension.extension:CBV_index">
      <path value="Extension.extension" />
      <sliceName value="CBV_index" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:CBV_index.url">
      <path value="Extension.extension.url" />
      <fixedUri value="CBV_index" />
    </element>
    <element id="Extension.extension:CBV_index.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="decimal" />
      </type>
      <minValueDecimal value="0" />
      <maxValueDecimal value="1" />
    </element>
    <element id="Extension.extension:Tmax_more_6_sec_volume">
      <path value="Extension.extension" />
      <sliceName value="Tmax_more_6_sec_volume" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:Tmax_more_6_sec_volume.url">
      <path value="Extension.extension.url" />
      <fixedUri value="Tmax_more_6_sec_volume" />
    </element>
    <element id="Extension.extension:Tmax_more_6_sec_volume.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="Quantity" />
        <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" />
      </type>
    </element>
    <element id="Extension.extension:Tmax_more_6_sec_volume.value[x].unit">
      <path value="Extension.extension.value[x].unit" />
      <fixedString value="ml" />
    </element>
    <element id="Extension.extension:Tmax_more_6_sec_volume.value[x].system">
      <path value="Extension.extension.value[x].system" />
      <fixedUri value="http://unitsofmeasure.org" />
    </element>
    <element id="Extension.extension:Tmax_more_6_sec_volume.value[x].code">
      <path value="Extension.extension.value[x].code" />
      <fixedCode value="ml" />
    </element>
    <element id="Extension.extension:ADC_less_620_volume">
      <path value="Extension.extension" />
      <sliceName value="ADC_less_620_volume" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:ADC_less_620_volume.url">
      <path value="Extension.extension.url" />
      <fixedUri value="ADC_less_620_volume" />
    </element>
    <element id="Extension.extension:ADC_less_620_volume.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="Quantity" />
        <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" />
      </type>
    </element>
    <element id="Extension.extension:ADC_less_620_volume.value[x].unit">
      <path value="Extension.extension.value[x].unit" />
      <fixedString value="ml" />
    </element>
    <element id="Extension.extension:ADC_less_620_volume.value[x].system">
      <path value="Extension.extension.value[x].system" />
      <fixedUri value="http://unitsofmeasure.org" />
    </element>
    <element id="Extension.extension:ADC_less_620_volume.value[x].code">
      <path value="Extension.extension.value[x].code" />
      <fixedCode value="ml" />
    </element>
    <element id="Extension.extension:Mismatch_volume">
      <path value="Extension.extension" />
      <sliceName value="Mismatch_volume" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:Mismatch_volume.url">
      <path value="Extension.extension.url" />
      <fixedUri value="Mismatch_volume" />
    </element>
    <element id="Extension.extension:Mismatch_volume.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="Quantity" />
        <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" />
      </type>
    </element>
    <element id="Extension.extension:Mismatch_volume.value[x].unit">
      <path value="Extension.extension.value[x].unit" />
      <fixedString value="ml" />
    </element>
    <element id="Extension.extension:Mismatch_volume.value[x].system">
      <path value="Extension.extension.value[x].system" />
      <fixedUri value="http://unitsofmeasure.org" />
    </element>
    <element id="Extension.extension:Mismatch_volume.value[x].code">
      <path value="Extension.extension.value[x].code" />
      <fixedCode value="ml" />
    </element>
    <element id="Extension.extension:Mismatch_ratio">
      <path value="Extension.extension" />
      <sliceName value="Mismatch_ratio" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:Mismatch_ratio.url">
      <path value="Extension.extension.url" />
      <fixedUri value="Mismatch_ratio" />
    </element>
    <element id="Extension.extension:Mismatch_ratio.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="decimal" />
      </type>
      <minValueDecimal value="1" />
    </element>
    <element id="Extension.extension:TAC">
      <path value="Extension.extension" />
      <sliceName value="TAC" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:TAC.extension">
      <path value="Extension.extension.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Extension.extension:TAC.extension:Aif">
      <path value="Extension.extension.extension" />
      <sliceName value="Aif" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:TAC.extension:Aif.extension">
      <path value="Extension.extension.extension.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Extension.extension:TAC.extension:Aif.extension:Ttp">
      <path value="Extension.extension.extension.extension" />
      <sliceName value="Ttp" />
    </element>
    <element id="Extension.extension:TAC.extension:Aif.extension:Ttp.url">
      <path value="Extension.extension.extension.extension.url" />
      <fixedUri value="Ttp" />
    </element>
    <element id="Extension.extension:TAC.extension:Aif.extension:Ttp.value[x]">
      <path value="Extension.extension.extension.extension.value[x]" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Extension.extension:TAC.extension:Aif.extension:Ttp.value[x].unit">
      <path value="Extension.extension.extension.extension.value[x].unit" />
      <fixedString value="sec" />
    </element>
    <element id="Extension.extension:TAC.extension:Aif.extension:Max_attenuation">
      <path value="Extension.extension.extension.extension" />
      <sliceName value="Max_attenuation" />
    </element>
    <element id="Extension.extension:TAC.extension:Aif.extension:Max_attenuation.url">
      <path value="Extension.extension.extension.extension.url" />
      <fixedUri value="Max_attenuation" />
    </element>
    <element id="Extension.extension:TAC.extension:Aif.extension:Max_attenuation.value[x]">
      <path value="Extension.extension.extension.extension.value[x]" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Extension.extension:TAC.extension:Aif.extension:Max_attenuation.value[x].unit">
      <path value="Extension.extension.extension.extension.value[x].unit" />
      <fixedString value="a.u." />
    </element>
    <element id="Extension.extension:TAC.extension:Aif.url">
      <path value="Extension.extension.extension.url" />
      <fixedUri value="Aif" />
    </element>
    <element id="Extension.extension:TAC.extension:Aif.value[x]">
      <path value="Extension.extension.extension.value[x]" />
      <max value="0" />
      <type>
        <code value="base64Binary" />
      </type>
      <type>
        <code value="boolean" />
      </type>
      <type>
        <code value="canonical" />
      </type>
      <type>
        <code value="code" />
      </type>
      <type>
        <code value="date" />
      </type>
      <type>
        <code value="dateTime" />
      </type>
      <type>
        <code value="decimal" />
      </type>
      <type>
        <code value="id" />
      </type>
      <type>
        <code value="instant" />
      </type>
      <type>
        <code value="integer" />
      </type>
      <type>
        <code value="markdown" />
      </type>
      <type>
        <code value="oid" />
      </type>
      <type>
        <code value="positiveInt" />
      </type>
      <type>
        <code value="string" />
      </type>
      <type>
        <code value="time" />
      </type>
      <type>
        <code value="unsignedInt" />
      </type>
      <type>
        <code value="uri" />
      </type>
      <type>
        <code value="url" />
      </type>
      <type>
        <code value="uuid" />
      </type>
      <type>
        <code value="Address" />
      </type>
      <type>
        <code value="Age" />
      </type>
      <type>
        <code value="Annotation" />
      </type>
      <type>
        <code value="Attachment" />
      </type>
      <type>
        <code value="CodeableConcept" />
      </type>
      <type>
        <code value="Coding" />
      </type>
      <type>
        <code value="ContactPoint" />
      </type>
      <type>
        <code value="Count" />
      </type>
      <type>
        <code value="Distance" />
      </type>
      <type>
        <code value="Duration" />
      </type>
      <type>
        <code value="HumanName" />
      </type>
      <type>
        <code value="Identifier" />
      </type>
      <type>
        <code value="Money" />
      </type>
      <type>
        <code value="Period" />
      </type>
      <type>
        <code value="Quantity" />
        <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" />
      </type>
      <type>
        <code value="Range" />
      </type>
      <type>
        <code value="Ratio" />
      </type>
      <type>
        <code value="Reference" />
      </type>
      <type>
        <code value="SampledData" />
      </type>
      <type>
        <code value="Signature" />
      </type>
      <type>
        <code value="Timing" />
      </type>
      <type>
        <code value="ContactDetail" />
      </type>
      <type>
        <code value="Contributor" />
      </type>
      <type>
        <code value="DataRequirement" />
      </type>
      <type>
        <code value="Expression" />
      </type>
      <type>
        <code value="ParameterDefinition" />
      </type>
      <type>
        <code value="RelatedArtifact" />
      </type>
      <type>
        <code value="TriggerDefinition" />
      </type>
      <type>
        <code value="UsageContext" />
      </type>
      <type>
        <code value="Dosage" />
      </type>
    </element>
    <element id="Extension.extension:TAC.extension:Vof">
      <path value="Extension.extension.extension" />
      <sliceName value="Vof" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:TAC.extension:Vof.extension">
      <path value="Extension.extension.extension.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Extension.extension:TAC.extension:Vof.extension:Ttp">
      <path value="Extension.extension.extension.extension" />
      <sliceName value="Ttp" />
    </element>
    <element id="Extension.extension:TAC.extension:Vof.extension:Ttp.url">
      <path value="Extension.extension.extension.extension.url" />
      <fixedUri value="Ttp" />
    </element>
    <element id="Extension.extension:TAC.extension:Vof.extension:Ttp.value[x]">
      <path value="Extension.extension.extension.extension.value[x]" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Extension.extension:TAC.extension:Vof.extension:Ttp.value[x].unit">
      <path value="Extension.extension.extension.extension.value[x].unit" />
      <fixedString value="sec" />
    </element>
    <element id="Extension.extension:TAC.extension:Vof.extension:Max_attenuation">
      <path value="Extension.extension.extension.extension" />
      <sliceName value="Max_attenuation" />
    </element>
    <element id="Extension.extension:TAC.extension:Vof.extension:Max_attenuation.url">
      <path value="Extension.extension.extension.extension.url" />
      <fixedUri value="Max_attenuation" />
    </element>
    <element id="Extension.extension:TAC.extension:Vof.extension:Max_attenuation.value[x]">
      <path value="Extension.extension.extension.extension.value[x]" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Extension.extension:TAC.extension:Vof.extension:Max_attenuation.value[x].unit">
      <path value="Extension.extension.extension.extension.value[x].unit" />
      <fixedString value="a.u." />
    </element>
    <element id="Extension.extension:TAC.extension:Vof.url">
      <path value="Extension.extension.extension.url" />
      <fixedUri value="Vof" />
    </element>
    <element id="Extension.extension:TAC.extension:Vof.value[x]">
      <path value="Extension.extension.extension.value[x]" />
      <max value="0" />
      <type>
        <code value="base64Binary" />
      </type>
      <type>
        <code value="boolean" />
      </type>
      <type>
        <code value="canonical" />
      </type>
      <type>
        <code value="code" />
      </type>
      <type>
        <code value="date" />
      </type>
      <type>
        <code value="dateTime" />
      </type>
      <type>
        <code value="decimal" />
      </type>
      <type>
        <code value="id" />
      </type>
      <type>
        <code value="instant" />
      </type>
      <type>
        <code value="integer" />
      </type>
      <type>
        <code value="markdown" />
      </type>
      <type>
        <code value="oid" />
      </type>
      <type>
        <code value="positiveInt" />
      </type>
      <type>
        <code value="string" />
      </type>
      <type>
        <code value="time" />
      </type>
      <type>
        <code value="unsignedInt" />
      </type>
      <type>
        <code value="uri" />
      </type>
      <type>
        <code value="url" />
      </type>
      <type>
        <code value="uuid" />
      </type>
      <type>
        <code value="Address" />
      </type>
      <type>
        <code value="Age" />
      </type>
      <type>
        <code value="Annotation" />
      </type>
      <type>
        <code value="Attachment" />
      </type>
      <type>
        <code value="CodeableConcept" />
      </type>
      <type>
        <code value="Coding" />
      </type>
      <type>
        <code value="ContactPoint" />
      </type>
      <type>
        <code value="Count" />
      </type>
      <type>
        <code value="Distance" />
      </type>
      <type>
        <code value="Duration" />
      </type>
      <type>
        <code value="HumanName" />
      </type>
      <type>
        <code value="Identifier" />
      </type>
      <type>
        <code value="Money" />
      </type>
      <type>
        <code value="Period" />
      </type>
      <type>
        <code value="Quantity" />
        <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" />
      </type>
      <type>
        <code value="Range" />
      </type>
      <type>
        <code value="Ratio" />
      </type>
      <type>
        <code value="Reference" />
      </type>
      <type>
        <code value="SampledData" />
      </type>
      <type>
        <code value="Signature" />
      </type>
      <type>
        <code value="Timing" />
      </type>
      <type>
        <code value="ContactDetail" />
      </type>
      <type>
        <code value="Contributor" />
      </type>
      <type>
        <code value="DataRequirement" />
      </type>
      <type>
        <code value="Expression" />
      </type>
      <type>
        <code value="ParameterDefinition" />
      </type>
      <type>
        <code value="RelatedArtifact" />
      </type>
      <type>
        <code value="TriggerDefinition" />
      </type>
      <type>
        <code value="UsageContext" />
      </type>
      <type>
        <code value="Dosage" />
      </type>
    </element>
    <element id="Extension.extension:TAC.extension:Tissue">
      <path value="Extension.extension.extension" />
      <sliceName value="Tissue" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.extension">
      <path value="Extension.extension.extension.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.extension:Ttp">
      <path value="Extension.extension.extension.extension" />
      <sliceName value="Ttp" />
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.extension:Ttp.url">
      <path value="Extension.extension.extension.extension.url" />
      <fixedUri value="Ttp" />
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.extension:Ttp.value[x]">
      <path value="Extension.extension.extension.extension.value[x]" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.extension:Ttp.value[x].unit">
      <path value="Extension.extension.extension.extension.value[x].unit" />
      <fixedString value="sec" />
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.extension:Max_attenuation">
      <path value="Extension.extension.extension.extension" />
      <sliceName value="Max_attenuation" />
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.extension:Max_attenuation.url">
      <path value="Extension.extension.extension.extension.url" />
      <fixedUri value="Max_attenuation" />
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.extension:Max_attenuation.value[x]">
      <path value="Extension.extension.extension.extension.value[x]" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.extension:Max_attenuation.value[x].unit">
      <path value="Extension.extension.extension.extension.value[x].unit" />
      <fixedString value="a.u." />
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.url">
      <path value="Extension.extension.extension.url" />
      <fixedUri value="Tissue" />
    </element>
    <element id="Extension.extension:TAC.extension:Tissue.value[x]">
      <path value="Extension.extension.extension.value[x]" />
      <max value="0" />
    </element>
    <element id="Extension.extension:TAC.url">
      <path value="Extension.extension.url" />
      <fixedUri value="TAC" />
    </element>
    <element id="Extension.extension:TAC.value[x]">
      <path value="Extension.extension.value[x]" />
      <max value="0" />
    </element>
    <element id="Extension.extension:Eval_date">
      <path value="Extension.extension" />
      <sliceName value="Eval_date" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.extension:Eval_date.url">
      <path value="Extension.extension.url" />
      <fixedUri value="Eval_date" />
    </element>
    <element id="Extension.extension:Eval_date.value[x]">
      <path value="Extension.extension.value[x]" />
      <min value="1" />
      <type>
        <code value="dateTime" />
      </type>
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://example.org/fhir/StructureDefinition/MRIExtension" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>