Radiology · 1981 · 20 citations · 0 references
MedicineCardiologyPhysiologyDiagnostic ImagingDigital ImagingFlow VisualizationCardiovascular AnatomyCardiovascular ImagingHemodynamicsIntravascular ImagingVascular ImagingVascular UltrasonographyBlood FlowBlood Flow DynamicsBlood Flow MeasurementBlood Flow VisualizationCardiac Flow QuantificationCardiac OutputCardiovascular FlowContrast
The authors describe a technique for visualizing and quantitating blood flow and cardiac dynamics following the intravenous administration of contrast material (less than 1 ml/kg). This method uses a digital radiographic device while motion by the patient or test subject is stopped. Preliminary flow studies of the carotid arteries and heart of a dog are presented. This technique has the potential to quantitate physiological parameters such as relative blood flow through pairs of arteries, cardiac output, regional ejection fraction, and heart-wall movement and thickening.