Magnetic Resonance Imaging (MRI) Gayatri Deoras & Janet Gao, ECE 317, Fall 2006 Abstract “A middle-age woman walks in complaining of chest pains but otherwise seems fine. The biggest concerns are that she might be having a heart attack, that her aorta may have developed a tear or that she has a major clot in the blood vessels of the lungs. Any of these could swiftly be deadly. Her electrocardiogram comes back normal, and blood tests indicate no cardiac damage. With no compelling reason to suspect a heart attack, it is hard to make the case for ordering a cardiac catheterization. However, because she continues to complain of chest pains, doctors are reluctant to send her home. So they keep her under observation, waiting to see if anything happens” (Time Magazine Aug. 2005). Magnetic Resonance Imaging of her heart and lungs could provide doctors with details to determine if any of those conditions are valid or not on the spot. MRI specifically senses hydrogen atoms, and human beings are composed of 70% water (H
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