Cardiovascular distortion in experimental nonpenetrating chest impacts.
High-speed cineradiography and flash radiography were used to determine cardiac distortion and the motion of the heart within the thorax following nonpenetrating chest impact. Maximum ventricular distortion occurred approximately 3 ms after impact which was also the time of maximum chest wall displacement. Between +3 ms and +10 ms the heart moved posteriorly and regained much of its initial shape. Maximal posterior displacement of the body of the heart occurred at approximately +10 ms. Three-dimensional reconstruction showed that the heart moved caudally and to the right, with little rotation. The aortic arch moved cranially with consequent stretching of the thoracic aorta.
D000818:Animals; D001013:Aorta, Thoracic / Q000503:physiopathology; D002933:Cineradiography; D006335:Heart Injuries / Q000000981:diagnostic imaging / Q000503:physiopathology*; D007700:Kinetics; D008433:Mathematics; D008954:Models, Biological; D009038:Motion; D012834:Silver; D013552:Swine; D013898:Thoracic Injuries / Q000000981:diagnostic imaging / Q000503:physiopathology*; D014949:Wounds, Nonpenetrating / Q000000981:diagnostic imaging / Q000503:physiopathology*
D012834:Silver