Clinical Case Study Shows GE Healthcare's LightSpeed VCT Only CT Scanner Capable of Imaging the Heart in as Few as Five Beats; Major Clinical Studies in Progress to Compare LightSpeed VCT Scan To Catheterization.DALLAS -- Case Study and Physician Feedback Confirm LightSpeed VCT's 5-Beat Cardiac Imaging Application; Speed Enabling Scanning of Broader Patient Population GE Healthcare, a unit of General Electric Company (NYSE NYSE See: New York Stock Exchange :GE), announced today data from a clinical case study confirming that the LightSpeed VCT VCT Voluntary Counseling and Testing VCT Vinyl Composition Tile VCT Saint Vincent and the Grenadines (ISO Country code) VCT Venture Capital Trust (UK fiscal status) , GE's ground-breaking volume computed tomography Computed tomography (CT scan) X rays are aimed at slices of the body (by rotating equipment) and results are assembled with a computer to give a three-dimensional picture of a structure. (CT) scanner, is capable of capturing images of the human heart in as few as five beats. The announcement was made at the annual meeting of the American Heart Association American Heart Association (AHA), n.pr a national voluntary health agency that has the goal of increasing public and medical awareness of cardiovascular diseases and stroke, and thereby reducing the number of associated deaths and disabilities. in Dallas. The clinical case study data, collected by Dr. Jean-Louis Sablayrolles, head of CT Cardiac Imaging Radiology at Centre Cardiologique de Nord (CCN CCN Cloud Condensation Nuclei CCN Church Communication Network CCN Conseil Canadien des Normes (Standards Council of Canada) CCN Critical Care Nurse CCN Certified Clinical Nutritionist CCN Community Care Network CCN Cyclin ) in Saint-Denis, France, shows the LightSpeed VCT's ability to scan the heart in five heart beats is a critical tool to help physicians improve the success rate of coronary CT imaging when compared with scan durations of 10 seconds or longer.(1) As a result, physicians are able to get clear images of a broader patient population than typical scans done by non-volume CT systems, according to Sablayrolles. "This medical achievement in cardiac diagnosis is improving the standard of care for even those patients who previously were unable to undergo a non-invasive diagnosis because of poor breath hold," said Sablayrolles. "The extreme speed and enhanced image quality of the LightSpeed VCT are enabling doctors at CCN to scan patients in the shortest amount of time possible while obtaining remarkable cardiac images." "After five seconds, the heart rate starts to increase due to hypoxia hypoxia Condition in which tissues are starved of oxygen. The extreme is anoxia (absence of oxygen). There are four types: hypoxemic, from low blood oxygen content (e.g., in altitude sickness); anemic, from low blood oxygen-carrying capacity (e.g. (breath hold), which is why GE's five beat technology is so vital to helping to obtain the images to diagnose a very broad patient population," said Sablayrolles. Other Doctors Seeing Benefits of 5-Beat Cardiac Application Other clinical researchers also say they are experiencing significant benefits and improving cardiac imaging with the 5-Beat Cardiac(TM) application of the LightSpeed VCT. "For the first time, using GE's LightSpeed VCT images, physicians are able to non-invasively diagnose heart disease in at-risk patients, including patients who we were unable to scan previously due to either rapid heart beat or because they were unable to hold their breath long enough," said Dr. Stanley Katz, chief, cardiology, North Shore University Hospital, Manhasset, NY. "The GE LightSpeed VCT allows acquisition of cardiac images in a very short span of time. This extremely fast acquisition reduces the chance for artifact which would occur from patient movement, beat-to-beat heart rate variability Heart rate variability (HRV) is a measure of variations in the heart rate. It is usually calculated by analysing the time series of beat-to-beat intervals from ECG or arterial pressure tracings. , and breathing," said Dr. Jeffrey Schussler of Baylor University Medical Center's Jack and Jane Hamilton Heart and Vascular Hospital in Dallas. Clinical Studies in Progress Comparing LightSpeed VCT Scan to Catheterization catheterization Threading of a flexible tube (catheter) through a channel in the body to inject drugs or a contrast medium, measure and record flow and pressures, inspect structures, take samples, diagnose disorders, or clear blockages. GE also announced today that the company is partnering with more than 20 clinical collaborators to focus on large, in-depth research studies to further examine the benefits of cardiac CT. These academic institutions include the Medical College of Wisconsin; North Shore University Hospital; Cardiology Associates of Alabama; University of California The University of California has a combined student body of more than 191,000 students, over 1,340,000 living alumni, and a combined systemwide and campus endowment of just over $7.3 billion (8th largest in the United States). Los Angeles -- Harbor; Baylor University Hospital; and Cornell University Hospital. Over the course of a year, patients participating in these studies will have both an angiogram an·gi·o·gram n. An angiographic x-ray of blood vessels used in diagnosing pathological conditions of the cardiovascular system.//An x-ray of one or more blood vessels produced by angiography and used in diagnosing pathology in the cardiovascular and a LightSpeed VCT scan so that physicians can compare the images. The results of the study will guide clinicians in the use of the LightSpeed VCT as a stand-alone diagnostic tool and may also help in the diagnostic evaluation diagnostic evaluation Workup Medtalk An evaluation used to diagnose disease Components Medical Hx, CXR or other images, collection of specimens from blood for lab analysis of emergency patients. "Catheterizations are an invasive test. With the LightSpeed VCT, we now offer a less invasive alternative that is changing the way we diagnose coronary artery disease coronary artery disease, condition that results when the coronary arteries are narrowed or occluded, most commonly by atherosclerotic deposits of fibrous and fatty tissue. ," said Dr. David Marks, associate professor of medicine at the Medical College of Wisconsin in Milwaukee. Additionally, a controlled clinical study underway at Children's Hospital and Health System in San Diego to assess the clinical performance of the LightSpeed VCT for infants with heart defects. The study will compare the accuracy of the LightSpeed VCT with the more invasive cardiac catheterization Cardiac Catheterization Definition Cardiac catheterization (also called heart catheterization) is a diagnostic procedure which does a comprehensive examination of how the heart and its blood vessels function. techniques on children born with congenital defects of the heart and major vessels. "Having access to GE's LightSpeed VCT will revolutionize the way we scan and diagnose our pediatric patients," said Meg Norton, chief operating officer Chief Operating Officer (COO) The officer of a firm responsible for day-to-day management, usually the president or an executive vice-president. of Children's Hospital and Health Center. "This cutting edge technology is a great benefit to sick children and their families who are in need of a quick, fast, accurate and, most important, less invasive diagnostic assessment." GE Technology Built from the Ground Up to Meet Clinical Need The LightSpeed VCT is able to noninvasively capture the image of any organ in one second, perform a whole body trauma scan in fewer than 10 seconds, and capture images of the heart and coronary arteries Coronary arteries The two main arteries that provide blood to the heart. The coronary arteries surround the heart like a crown, coming out of the aorta, arching down over the top of the heart, and dividing into two branches. in as few as five heartbeats -- something no other CT system can offer. In a single rotation, the system creates 64 credit-card-thin images, totaling 40 millimeters of anatomical coverage. These images are combined to form a three-dimensional view of the patient's anatomy for the physician to analyze. According to Laura King, global vice president of the Interventional, Cardiology and Surgery business at GE Healthcare, the LightSpeed VCT's 5-Beat Cardiac application was specifically designed to provide more coverage and fewer rotations for better resolution, coverage, speed and power. "GE listened to luminary cardiologists and customers who told us that imaging the heart in five or fewer beats was an urgent clinical need," said King. "The LightSpeed VCT is the only technology capable of 5-Beat Cardiac, and GE is the only company to build our technology for physicians, based on their clinical needs, from the ground up." The LightSpeed VCT has the capability to attain 43-millisecond temporal resolution, which means physicians can effectively freeze the motion of the heart in a scan and secure extremely high-quality images of coronary arteries at submillimeter. This capability can make diagnostic evaluation of arterial stenosis faster and less invasive than catheter angiography angiography or arteriography X-ray examination of arteries and veins with a contrast medium to differentiate them from surrounding organs. The contrast medium is introduced through a catheter to show the blood vessels and the structures they supply, including . GE Healthcare has identified opportunities for new and improved diagnostic cardiac applications for the LightSpeed VCT, based on its coverage, speed and resolution capabilities: --5-Beat Cardiac -- A comprehensive view of the heart and coronary arteries with submillimeter resolution in five heart beats. This coverage helps reduce beat-to-beat variability, resulting in more robust, repeatable procedures, as well as greater vessel visualization and shorter breath holds for sick patients. --Triple RuleOut(TM) -- The ability to help clinicians rule out (or in) the three most life-threatening critical conditions in chest pain in one single scan: aortic dissection Aortic Dissection Definition Aortic dissection is a rare, but potentially fatal, condition in which blood passes through the inner lining and between the layers of the aorta. , pulmonary embolism Pulmonary Embolism Definition Pulmonary embolism is an obstruction of a blood vessel in the lungs, usually due to a blood clot, which blocks a coronary artery. and coronary artery disease. ABOUT GE HEALTHCARE GE Healthcare provides transformational medical technologies that are shaping a new age of patient care. GE Healthcare's expertise in medical imaging and information technologies, medical diagnostics, patient monitoring and life support systems, disease research, drug discovery, and biopharmaceutical manufacturing technologies is helping physicians detect disease earlier and to tailor personalized treatments for patients. GE Healthcare offers a broad range of products and services that are improving productivity in healthcare and enhancing patient care by enabling healthcare providers to better diagnose and treat cancer, heart disease, neurological diseases, and other conditions. Headquartered in the United Kingdom, GE Healthcare is a $15 billion unit of General Electric Company (NYSE:GE). Worldwide, GE Healthcare employs more than 43,000 people committed to serving healthcare professionals and their patients in more than 100 countries. For more information about GE Healthcare, visit our website at www.gehealthcare.com. Contact (1)JL Sablayrolles et al. "Wide Coverage by Volume CT: Benefits for Cardiac Imaging," Proceedings of SPIE Proceedings of SPIE is proceeding of The International Society for Optical Engineering; see the homepage of the proceefing at [1]. This publication does not match the requirements of a scientific journal, some papers in the proceedings of SPIE , Physics of Medical Imaging 2005, vol. 5745-39. |
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