heart left ventricle end-systolic diameter heart left ventricle end-systolic internal diameter 2021-10-26T15:27:30Z CMO:0003851 LVIDs The diameter across the inside of the left ventricle of the heart at the end of systole, that is, when the heart muscle is maximally contracted, and usually corresponds to its smallest diameter. clinical_measurement_ontology heart left ventricular end-systolic internal diameter left ventricular internal dimension at systole slaulede