By harnessing new X-ray detectors, photon-counting CT hugely improves image quality and contrast ... These are made from a solid ceramic material that absorbs incoming X-rays and converts them ...

[2] Noncontrast CT in the emergency diagnosis of appendicitis is attractive for several reasons. Administration of oral contrast consumes valuable time in today's fast-paced and overcrowded ED.

Imaging can be performed at multiple time points before and after the injection of the contrast material. Each examination involves sets of images referred to as a "series." Multiple series should be ...

A shortage of the chemical agent known as ‘contrast’ is causing hospitals to rethink some of their diagnostic procedures, including computerized tomography scans, better known as CT scans.