"In other words, if you do a CT scan to calculate volume differences in the lungs the first time and then you try to do it again, you get different results every time for the same patient, making ...

The most commonly employed neuroimaging method for the evaluation of acute stroke is a CT scan without the administration of contrast material (noncontrast CT [NCCT]). Indeed, this is the only study ...

Iodine-based contrast material injected intravenously to enhance CT images can be safely used in most patients, according to a study. Of the 80 million or more CT scans performed each year in the ...

Although CT is a relatively recent technology, there have been great improvements in the equipment. The early, slow "Step and Scan" machines required long image acquisition times, resulting in a ...

Dear Dr. Roach: I'm set to have a CT scan of my lungs with iodine dye. I have hypothyroidism and am on 25 mg of levothyroxine. Should I take the medicine the day of the test? Or should I have the CT ...