E-Z-CAT Dry is a dry CT barium contrast powder for suspension and can be mixed and self-administered at home. This may improve examination throughput, reduces patient waiting time and help to minimize waiting room congestion. The light E-Z-Cat® Dry foil packets can also be mailed to patients in remote locations.
The oral contrast agent is well compatible with new scanner technologies and provides a fast transit time through the GI tract.

E-Z-EM, Inc. is headquartered in New York and develops, manufactures and markets diagnostic imaging products.
The business of E-Z-EM encompasses CT imaging, virtual colonoscopy, gastro devices and accessories, and healthcare decontaminants. E-Z-EM is also a third-party contract manufacturer of contrast media. The company provides contract manufacturing services in various product areas, including pharmaceuticals, and cosmetics, as well as the marketing of radiological medical devices, such as entry biopsy needles and mammography wipes and related accessories.
Bracco Diagnostics, Inc. , the US-based subsidiary of Bracco Imaging S.p.A. and part of the Bracco Group, announced in Oct. 2007 that it has entered into a merger agreement to acquire E-Z-EM, Inc. (NASDAQ: EZEM) for a total consideration of about $ 240 million . Upon completion of the procedure and subject to the approval of the regulatory authorities, Bracco Diagnostics Inc. will incorporate E-Z-EM.

ECG trigger methods synchronize the heartbeat in order to minimize motion artifacts, whereat the r-wave is used as the trigger. ECG gating techniques are useful whenever data acquisition is too slow to occur during a short fraction of the cardiac cycle.

See also Triggering and Trigger Delay.

An edema is the accumulation of an abnormally high amount of watery fluid in cells, tissues, or serous cavities.

The effective energy (related to bremsstrahlung radiation from an x-ray machine) is the monoenergetic photon energy which produces the same first half value layer in a given material as the x-ray beam.