Claustrophobics (and everyone else who hates lying in coffin-like spaces), take note: GE just introduced an MRI machine for arm and leg injuries that requires patients to stick only the affected limb into a doughnut-shaped scanner--no full-body scanning required. The device, dubbed the Optima MR430s , offers imaging of the elbow, wrist, hand, knee, ankle, and foot, all while allowing patients to recline in padded, adjustable chairs
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