Computed tomography (CT) scans and magnetic resonance imaging (MRI) are two types of imaging procedures. They both create detailed images of the internal body structures. While CT scans use X-rays to ...

A CT scan of healthy lungs looks typical in size with no inflammation, allowing the diaphragm to dome. Lungs with emphysema can look overinflated, with muscle loss, making the diaphragm misshapen. The ...

A heart CT scan uses X-rays to create an image of the heart and blood vessels. Healthcare professionals may also refer to it as cardiac CT angiography. A CT scan is a noninvasive imaging procedure.

CT scans show detailed internal pictures and are usually essential in diagnosing life-threatening illnesses, such as internal bleeding, blood clots, or cancer. Although it is true that they expose ...