For many situations, MRI is the preferred diagnostic tool -- especially for brain imaging, although CT scan is still chosen for strokes because it is better at detecting hemorrhage. The drawback ...

The MRI may scan your whole spine or just a part of it. Unlike X-rays and computerized tomography (CT) scans, it doesn’t use damaging radiation. It’s generally safe and painless. The doctor ...

Do I need yet another CT examination? You can help avoid unnecessary repeat examinations by telling your doctor about previous examinations (X ray, CT, MRI, ultrasound and other imaging examinations) ...

The clinical syndrome produced by a stroke is determined by the artery or arteries that are occluded. Blood is supplied to the brain by two major sets of arteries, the anterior and posterior ...

Cancer diagnosis frequently requires imaging studies that in many cases use small amounts of radiation. Procedures such as X-rays; computed tomography (CT); magnetic resonance imaging (MRI); positron ...