middle cerebral artery inner diameter calculated cerebral artery inner diameter measurement calculated middle cerebral artery inner diameter measurement 2012-10-23T10:06:14Z CMO:0001189 JSmith The length of a line which crosses a transverse view of a middle cerebral artery, passing through its center and ending on either side at the inner surface of the blood vessel wall, after that measurement has been normalized or adjusted by a mathematical process or computation. The middle cerebral arteries are the largest of the cerebral arteries and supply blood to the lateral cerebral cortex, anterior temporal lobes and insular cortices of the brain. clinical_measurement_ontology