calculated artery wall thickness measurement artery lumen to artery total diameter ratio 2019-01-22T15:50:45Z A calculated measurement of the average width of the artery lumen (measured as the length of a line which crosses a transverse view of an artery, passing through its center and ending on either side at the inner surface of the blood vessel wall) divided by the artery total diameter (measured as the length of a line which crosses a transverse view of an artery, passing through its center and ending on either side at the outer surface of the blood vessel wall). CMO:0003014 VT:0000530 VT:0002191 VT:0011164 clinical_measurement_ontology sjwang