blood flow rate myocardium measurement myocardial flow rate VT:2000004 CMO:0001545 The volume of fluid flowing into, out of or through the blood vessels and microvasculature of the myocardium, the thick contractile middle layer of uniquely constructed and arranged muscle cells that forms the bulk of the heart wall, per unit time. MBF 2013-03-15T17:29:25Z jsmith myocardial blood flow clinical_measurement_ontology