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What is an Open MRI? (with pictures) - wisegeek.com

An open MRI is an advanced form of the original magnetic resonance imaging (MRI) device. Used since the 1980s, an MRI scan sends magnetic and radio waves through the human body at as much as 30,000 times the strength of the Earth’s magnetic field.A regular MRI is a large, enclosed magnet in which patients lie still during an MRI scan, but an open MRI is a newer system that allows patients to ...