title: A method for the noninvasive evaluation of cardiovascular dynamics using a digital radiographic device.
abstract: 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.
mesh_terms: D000818:Animals; D002302:Cardiac Output; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D003287:Contrast Media; D003326:Coronary Circulation; D004285:Dogs; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D009068:Movement; D009200:Myocardial Contraction; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media