heart right atrium morphological measurement calculated heart right atrium morphological measurement sjwang clinical_measurement_ontology CMO:0002951 2018-12-20T14:57:33Z A measurement of the physical form or structure of the right atrium, the right upper chamber of the heart that receives blood from the vena cava and forces it into the right ventricle, which has been normalized, adjusted or derived by a mathematical process or computation.