In order to determine if Marta had a stroke, the doctors used a computer-enhanced X-ray image of her brain, a technique known as an fMRI.

Name: In order to determine if Marta had a stroke, the doctors used a computer-enhanced X-ray image of her brain, a technique known as an fMRI.
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The technique described is actually called a CT scan or a CAT scan. An fMRI (functional Magnetic Resonance Imaging) measures brain activity by detecting changes associated with blood flow.

In Order to Determine If Marta Had a Stroke, the Doctors