CAT scan


Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.
Related to CAT scan: CT scan, MRI scan

CAT scan

(kăt) [computerized axial tomography], X-rayX ray,
invisible, highly penetrating electromagnetic radiation of much shorter wavelength (higher frequency) than visible light. The wavelength range for X rays is from about 10−8 m to about 10−11
..... Click the link for more information.
 technique that allows relatively safe, painless, and rapid diagnosis in previously inaccessible areas of the body; also called CT scan. An X-ray tube, rotating around a specific area of the body, delivers an appropriate amount of X radiation for the tissue being studied and takes pictures of that part of the internal anatomy from different angles. More recent scanners have a stationary X-ray tube and use deflecting coils and special reflectors to position the X-ray beam. A computer program is then used to form a composite, readable image. CAT scanning has revolutionized medicine, especially neurology, by facilitating the diagnosis of brain and spinal cord disorders, cancercancer,
in medicine, common term for neoplasms, or tumors, that are malignant. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth.
..... Click the link for more information.
, and other conditions. Ultrafast CT, or electron beam CT, is able to take pictures in a tenth of a second. It is useful in creating images of moving parts, such as the heart, without blurring.

CAT scan

[′kat ‚skan]
(medicine)
An image of a sectional view of a portion of the body made by computerized tomography.

CAT scan

(Computer Axial Tomography) A series of X-rays that show the human body in slices. The X-ray mechanism, which surrounds the body, "inches" its way along the area being examined, taking multiple tomograms (slices). The computer is used to turn the tomograms into pictures. See tomography.
References in periodicals archive ?
The CAT scan will also aid in early detection of chronic diseases and various forms of cancer.
Unfortunately, it is difficult to accurately diagnose ischemic bowel on CAT scan [4].
Bili gets his CAT scan with Dr Rhys Jones, right of picture <B
This was a new finding, which was not present on the admission CAT scan. Subsequently, the patient was taken to the operating room.
Sheeley explained that the jewelry tends to interfere with the CAT scan more than the PET scan, but that he had her take it off prior to the PET scan.
He left during the middle of the three-hour practice to undergo a CAT scan, and if all goes well, he could be given medical clearance to remove the brace on his hand, perhaps as soon as today, and then begin a structured throwing program.
Al Rahba Hospital, a Seha Health System facility in Abu Dhabi, has introduced a state-of-the-art CAT scan system.
From diagnostics such as CAT scan and postmortem findings to clinical approaches to managing each condition, from diagnosis to management, this packs in tools key to any working with horses, whether it be vets, owners, nurses or horse stable managers.
"It would be incredible if, in a few years time, we could examine the data from a CAT scan using our software to examine the inside of, for example, arteries and the heart as part of a scheme for preventative medicine.
Ingvar Ericcson) present the process and loading protocols in detail from clinical diagnosis through work-up via a CAT scan, to computer-based surgical planning and minimally invasive implant procedures.
The medical care here in Thailand is incredible an ambulance arrived at the scene in about a minute, and I was taken to a nearby government hospital for x-rays and a CAT scan and then was taken to a private hospital by ambulance at 3 a.m.
Contrasting his life as a CAT scan technician at UCLA with his adventures as a feared public figure, the author portrays the Mongols as a mostly law-abiding group who are under constant scrutiny from the ATF and other government agencies.