           number: 1
           detail: 'a'
         subject_detail:
+          _id: 'a'
+          birth_date: moment([1961, 6, 7]).valueOf()
           sessions: [
             number: 1
+            acquisition_date: moment('July 1, 2013').valueOf()
             detail: 'b'
             modeling: [
               name: 'pk_aUjr'
               image_container_name: 'reg_8L3W'
-              fxl_k_trans: 2.3
-              fxr_k_trans: 2.5
+              fxlKTrans: 2.3
+              fxrKTrans: 2.5
             ]
           ]
           encounters: [

          #expect(sess.modeling.length).to.equal(1)
          #mdl = sess.modeling[0]
          mdl = sess.modeling
          expect(mdl.delta_k_trans, "Modeling is missing a delta Ktrans")
            .to.exist
          mock_mdl = mock.subject_detail.sessions[0].modeling[0]
          mock_delta_k_trans = mock_mdl.fxr_k_trans - mock_mdl.fxl_k_trans
          expect(mdl.delta_k_trans, "Delta Ktrans is not #{ mock_delta_k_trans }")
            .to.be.closeTo(mock_delta_k_trans, 0.0000001)

        it 'should fetch the detail with a detail property', ->
          subject = _.clone(mock.subject)

            end_date: moment('July 16, 2013').valueOf()
          ]
        session_detail:
          _id: 'b'
          scan:
            name: 'scan'
            intensity:
