http://www.nucleusinc.com This 3D medical animation of the heart shows a coronary artery bypass graft (CABG) procedure used to combat coronary artery disease. Beginning with a midline sternal incision, the heart is connected to a perfusion machine which will take over the duties of the heart while the surgery takes place. Two different grafts are used to bypass the blocked coronary arteries: the internal thoracic artery from inside the chest wall, and the saphenous vein from the leg. After the procedure, the heart is shocked to restart its beating. A drainage tube is left at the incision site to drain away excess fluid. The animation continues to show two other types of approaches to a coronary artery bypass graft, off-pump bypass surgery and minimally invasive bypass surgery.
This is similar to the procedure performed on former president Bill Clinton and California governor Arnold Schwarzenegger.
Duration : 0:4:19
This 3D animation depicts how Tim Russert’s fatal heart attack most likely occurred. It is based on the preliminary autopsy findings released today (6/15/08). Mr. Russert ruptured a “vulnerable” coronary plaque in his left anterior descending coronary artery (also known as the “LAD”) which supplies blood to the anterior wall of the left ventricle, the main pumping chamber. The rupture caused immediate formation of a large blood clot (thrombus) which totally obstructed the artery and cut off blood flow to the heart muscle; a “fresh” clot was found in the LAD artery at the autopsy. This precipitated a fatal cardiac arrhythmia, most likely ventricular fibrillation, which was unresponsive to resuscitative efforts. Most heart attacks (myocardial infarctions) are caused by rupture of “vulnerable” plaques that often do not interfere with blood flow or cause symptoms. This may explain why Mr. Russert had no symptoms (such as chest pain) and reportedly had a normal exercise test less than 2 months ago.
Animation by David Aten (atenmedicalart.com) depicting new treatments for end stage heart disease. Music by Ron Harrity (ideaofnorth.com). Copyright 2002 Aten Medical Art.
http://www.nucleusinc.com This 3d medical animation shows a heart attack resulting from atherosclerosis, which is inflammation of an artery. It was designed to be an immersive experience to hold the viewer’s interest in this complex, slow-developing process. Every shot was conceptualized as a visual effect to evoke the sensation of a journey within a dynamic and diverse environment. Beginning with the probable cause, which is damage to the endothelial wall, the story progresses in detail through the stages of atherosclerosis concluding with the resulting damage to the heart. See more 3D medical animations from Nucleus Medical Art at http://www.nucleusinc.com/youtube ANCE00192