<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A measurement obtained from a radiographic image of the left ventricle during the final moment of ventricular relaxation, when the ventricle fills with blood.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>