Word: imaginging
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The technological boom has come so fast that doctors and patients are faced with the challenge of sorting the scans from the scams. Medicare and insurance companies are looking with growing alarm at the overall surge in the use of expensive imaging scans for all parts of the body. The...
The trouble is that there's no single type of scan that easily and inexpensively shows you everything you need to know about the heart. In addition, some tests are better at evaluating anatomy--the physical structure of the heart--while others tell you more about how well various parts...
Before 64-slice CT appeared on the scene, many physicians thought the future of cardiac scans belonged to a completely different technology: magnetic resonance imaging. Instead of X rays, MRI uses powerful electromagnets that are tuned to detect the hydrogen found in water--which in turn is present in most...
Advocates of MRI admit that CT scans probably have the edge when it comes to imaging the heart's arteries, but that's about all. "Coronary arteries are only a small part of the heart," says Dr. Raymond Kim, co-director of the Duke Cardiovascular Magnetic Resonance Center. MRI is...
The future, however, may belong to whoever can figure out how to make all these imaging technologies work together. One approach combines the anatomical accuracy of CT imaging with the functional information provided by a type of nuclear scan called positron-emission tomography (PET). Still in its early days in...