CAT′ scan`

(kæt)
n. 1. an examination performed with a CAT scanner. 2. an x-ray image obtained by examination with a CAT scanner. Also called CT scan. [1970–75; c(omputerized) a(xial) t(omography)]

CAT scan

(kăt) Short for computerized axial tomography scan. A cross-sectional view of an internal body part made by a computer that assembles a series of x-rays taken at different angles into a three-dimensional image. CAT scans are used in medicine to help diagnose a disease or disorder.

Thesaurus

Noun

CAT scan - an image produced by scanning; "he analyzed the brain scan"; "you could see the tumor in the CAT scan"scanikon, picture, icon, image - a visual representation (of an object or scene or person or abstraction) produced on a surface; "they showed us the pictures of their wedding"; "a movie is a series of images projected so rapidly that the eye integrates them"

Translations

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.

CAT scan

scan

[skan] 1. to examine or map the body, or one or more organs or regions of it, by gathering information with a sensing device, such as a moving detector or a sweeping beam of radiation.2. the data or image so obtained, often designated according to the organ under examination, such as a brain scan, kidney scan, or thyroid scan.3. shortened form of scintiscan.A-scan display on a cathode ray tube of ultrasonic echoes, in which one axis represents the time required for return of the echo and the other corresponds to the strength of the echo.B-scan display on a cathode ray tube of ultrasonic echoes, in which the position of a bright dot on the tube corresponds to the time elapsed and the brightness of the spot to the strength of the echo; movement of the transducer across the skin surface yields a two-dimensional cross-sectional display.CAT scan (CT scan) the image generated by tomography" >computerized axial tomography.HIDA scan a type of scan using a technetium 99m complex to assess hepatobiliary function.thallium scan a scintiscan" >scintiscan involving use of thallium 201; see also thallium scan.ventilation-perfusion scan (V/Q scan) a scintigraphic technique for demonstrating perfusion defects in normally ventilated areas of the lung in the diagnosis of pulmonary embolism, consisting of the imaging of the distribution of an inhaled radionuclide followed by the imaging of the perfusion of the lungs by an injected radionuclide.

CAT scan

(kăt)n. A CT scan.

CAT scan

Computer tomography, see there&nbsp. ;.

CAT scan

computed axial tomography scan, a colloquial term for CT scan. See: computed tomographySee also: scan

Patient discussion about CAT scan

Q. I get bad headaches had ct scans and m.r.i. even sinus surgery, suffering 2yrs now, dizzness occurs too.. A. If all prior medical investigations turned out normal, and sinus surgery didn't help relieve your symptoms, I would suggest the reason for your headaches is probably migraine attacks, that can cause severe headaches, and no CT scan or MRI can diagnose them. The diagnosis is made clinically, by your doctor. Migraine headaches can be eased by proper medications, before and during an attack. You should consult a neurologist.

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Patient discussion about CAT scan

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Synonyms for CAT scan

noun an image produced by scanning

Synonyms

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