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Topic: CAT scans

	Spine Inc. - C T Scan
		CAT scans are also used in the chest to identify tumors, cysts, or infections that may be suspected on a chest x-ray.
		CAT scans in this area are used to verify the presence or absence of tumors, infection, abnormal anatomy, or changes of the body from trauma.
		CAT scans have vastly improved the ability of doctors to diagnose many diseases earlier in their course and with much less risk than previous methods.
	www.spine-inc.com /glossary/c/ct-scan.html (1350 words)

	CAT Scans (Site not responding. Last check: 2007-11-06)
		The first CAT scan machine took 4.5 minutes of scanning and 1.5 minutes of processing to produce one slice (a slice is a single three dimensional X-ray image produced by a CAT scan), today a slice can be scanned and generated in one second.
		CAT scans are most commonly used to find possible bleeding or damage in the brain and to create detailed images of the chest, the abdomen, the spine, and the pelvis.
		CAT angiography is a relatively new procedure in which CAT scans are used to create images of the inside of blood vessels, lungs, and other hollow structures.
	www.alumni.ca /~sitt4b0/catscans.htm (465 words)

	Dragon's Lair's Cat Facts (Site not responding. Last check: 2007-11-06)
		Cats have twice as many smell-sensitive cells in their noses as we do, which means they can smell things we are not even aware of.
		Cats rank high up on the intelligence scale, and one of their greatest assets is memory.
		The standing of cats in human history runs the gamut from the worship of cats by the Egyptians to the execution of people who housed cats in the Middle Ages - a particularly rough period when cats were associated with evil.
	www.water-spirit.com /Dragons_Lair/catfct.shtml (2669 words)

	CAT Scans
		During a CAT scan, you lie on a moving table and pass through a doughnut-shaped machine that creates a composite, synthesized image of the part of the body being studied.
		CAT scans are not used routinely to evaluate the breast.
		CAT scans are also used to evaluate lymph nodes, lungs, liver, brain, spine, or other areas in detail.
	www.breastcancer.org /testing_cat_blood.html (258 words)

	OVARIAN CANCER: Cat Scans (Site not responding. Last check: 2007-11-06)
		CAT scans are done for many reasons - such as looking for causes of headaches, belly pain, and breathing problems.
		The CAT scan is performed by a CT technologist in the Radiology department.
		The CAT scan is done by having the individual lie on the scan table.
	ovariancancer.jhmi.edu /catscan.cfm (1076 words)

	CAT scans during Pregnancy : American Pregnancy Association
		CAT scans are used to assess the internal structures inside the body.
		CAT scans may be done without the use of dye, but interpreting results may be more difficult to do.
		In general, abdominal CAT scans are not recommended due to the risk to the exposed fetus which could potentially lead to developmental malformations and childhood cancers.
	www.americanpregnancy.org /pregnancyhealth/catscans.html (463 words)

	RADIOLOGY (Site not responding. Last check: 2007-11-06)
		A CT/CAT scan is interchangeably referred to as either a CT or CAT scan.
		CAT scans are also capable of producing images of several different internal components, including soft tissue, blood vessels and bones.
		CAT scans are currently being used to examine ancient artifacts including an Egyptian mummy.
	www.bethisraelny.org /services/radiology/cat_scan.html (217 words)

	CNN - Study: CAT scans could improve early detection of lung cancer - July 9, 1999
		Of the 27 tumors the CAT scan identified, 23 were diagnosed as early and four as later-stage.
		CAT scans already are used to detect many cancers, including lung cancer, but normally that step is taken to see whether surgery can help, after the disease has been identified.
		He agrees that CAT scans are superior detection devices, but he says catching tumors early might not materially change survival rates of lung-cancer patients because of the aggressive nature of the disease.
	www.cnn.com /HEALTH/cancer/9907/09/cancer.screens (734 words)

	Student streamlines process for using CAT scans on fossils (Site not responding. Last check: 2007-11-06)
		CAT scans can produce images of various tissues in the body by passing radiation through the body and measuring the amount of radiation absorbed by the tissue.
		While CAT scans have seen limited use in studies on fossils and mummies, De Nooyer is the first to adapt the method to examine invertebrates.
		CAT scans first were used in paleo-anthropologic studies the late 1970s to obtain images of mummies.
	www.purdue.edu /UNS/html4ever/9611.Denooyer.CATscan.html (1043 words)

	Computed axial tomography (Site not responding. Last check: 2007-11-06)
		Computed axial tomography (CAT), computer-assisted tomography, computed tomography, CT, or body section roentgenography is the process of using digital processing to generate a three-dimensional image of the internals of an object from a large series of two-dimensional X-ray images taken around a single axis of rotation.
		Pixels in an image obtained by CT scanning are displayed in terms of relative radiodensity.
		The pixel itself is displayed according to the mean attenuation of the tissue that it corresponds to on a scale from −1024 to +3071 on the Hounsfield scale.
	hallencyclopedia.com /Computed_axial_tomography (853 words)

	Cat Scans (Site not responding. Last check: 2007-11-06)
		These images are made by placing a cat on the glass scanning area of a flatbed computer scanner and then operating scanning software to capture an image of the underside of the cat.
		The light should not cause retinal and corneal burns or other eye damage, but the cats still may find it annoying and doubtless some may confuse something that is annoying to the cat with something that is harmful to the cat.
		Also, the cat is atop a glass plate with some space between the plate and the innards of the scanner, and may not feel secure, like a baby getting frightened when lying atop a pane of glass way up in the air.
	members.aol.com /mdserval/catscan.html (603 words)

	Computer Axial Tomagraphy (Site not responding. Last check: 2007-11-06)
		A computerized axial tomography scan or CAT scan is a procedure which uses a computer for combining many x-ray images into cross-sectional views of the internal organs of the body, including the brain.
		CAT scans are used to image both normal and abnormal structures in the body and can also be used to help guide the placement of instruments or treatments.
		The head is imaged with CAT scan slices in a similar manner from the skull to the central brain structures.
	neurocog.psy.tufts.edu /images/computer_axial_tomagraphy.htm (250 words)

	Resource Center > News: Insights Lecture
		The CAT scan cannot perceive the difference between dead or scar tissue and cancerous tissue and, thus, it may all be interpreted as cancer.
		PET scans can be used to follow tumors and to identify how extensive disease is based on the number of areas that light up on the scan.
		In addition, PET scans may be effective in screening to identify breast cancer in patients with scars and implants, another group of women for whom mammography is less effective.
	cancerresources.mednet.ucla.edu /5_info/5c_archive_lec/2003/lec_pet_imaging.htm (1791 words)

	Howstuffworks "How CAT Scans Work"
		CAT scans take the idea of conventional X-ray imaging to a new level.
		Instead of finding the outline of bones and organs, a CAT scan machine forms a full three-dimensional computer model of a patient's insides.
		In this edition of HowStuffWorks, we'll examine the basic idea of CAT scans.
	science.howstuffworks.com /cat-scan.htm (82 words)

	A Patient's Guide to CAT Scans of the Spine (Site not responding. Last check: 2007-11-06)
		The CAT scan uses X-rays that are interpreted by a powerful computer to create images that appear as "slices" through the body.
		The CAT scan was developed before the MRI, and for several years, was used to show the soft tissues of the spine.
		The pictures of the soft tissues produced by a CAT scan are probably not as clear as the MRI.
	www.spineuniversity.com /public/spinesub.asp?id=76 (521 words)

	Articles - Computed tomography (Site not responding. Last check: 2007-11-06)
		The fourth generation of CT scanners achieved scan time similar to the third generation by employing a 360 degree ring of detctors that encircled the patient.
		Scanning is done without intravenous contrast agents (contrast may resemble a bleed).
		In the head/neck/mouth area, CT scanning is used for surgical planning for craniofacial and dentofacial deformities, evaluation of cysts and some tumors of the jaws/sinuses/nasal cavity/orbits, and for planning of dental implant reconstruction.
	www.dforever.com /articles/Computed_axial_tomography (1513 words)

	9/24/97 - What Makes Gravity? (Site not responding. Last check: 2007-11-06)
		CAT scans are used detect diseases such as cancer.
		Initially, the CAT scan was used to generate images of only the head, but now it is used for the rest of the body.
		Consequently, CAT scans are no longer limited to imaging the bony masses in the body.
	www.pa.msu.edu /~sciencet/ask_st/021198.html (203 words)

	CAT Users' Manual
		Bring the CAT to operation in an environment temperature at 20º C (± 3 º tolerance).
		CAT units are operational in all axis: standing, sitting, or laying down.
		A CAT unit should be taken once a year to a VET (Very Expensive Technician) for a system checkup.
	www.andreas.com /catman.html (1374 words)

	Welcome to Dragon's Lair (Site not responding. Last check: 2007-11-06)
		The supposed rivalry between cat and dog dates back, perhaps, to the origins of domestication, with each of the two animals attempting to supplant the other within the heart of the family.
		Cats are excellent mothers, jealously guarding the well-being and safety of their kittens.
		The image of the cat lapping its milk from a bowl is so deeply anchored in our minds that the first gesture that we make, if by chance we should come across an abondoned cat, is to offer it some milk.
	www.water-spirit.com /Dragons_Lair (830 words)

	CNN.com - CAT scans screen the healthy and wealthy - September 7, 2000
		They are marketing quick and painless, but costly, CAT scans to even their seemingly healthiest patients as a way to detect certain diseases long before any telltale symptoms.
		Nevertheless, insurance companies are wary of footing the bill for CAT scans to screen patients with no symptoms or early signs of disease, although many will pay at least some of the cost if a doctor recommends the scan.
		A CAT scan can closely examine the interior of the colon without anesthesia or lab work, but the patient must still prepare by drinking a concoction that clears out the digestive tract and the bowels are inflated prior to the exam with air pumped through a tube inserted in the rectum.
	archives.cnn.com /2000/HEALTH/09/07/health.scans.reut (995 words)

	Cat Scans
		Cat Scans--and the rest of this site--are designed to be viewed at low or medium resolution.
		Cat Saunders, Ph.D., is a counselor, shamanic practitioner, and nonsectarian minister of AIWP.
		Click here to contact Cat or learn more about her work by returning to the home page.
	www.drcat.org /catscans (152 words)

	CAT Scan (Site not responding. Last check: 2007-11-06)
		The CAT Scan (Computed Axial Tomography Scan) is a non-invasive technique used to determine the cross-sectional density profile inside a process vessel.
		The CAT Scan uses a small gamma ray source and a series of electronic detectors placed in a horizontal plane around the exterior of the vessel.
		A CAT Scan performed at the top of the bed will determine if the distributor is functioning correctly while a scan at the bottom will verify if the process fluid leaving the bed has been distributed evenly.
	www.scanningtech.com /CAT.htm (293 words)

	CAT Scans Health Guide - Health Guides Online
		Computerised tomographic scanning, or CT scaning (sometimes called CAT scanning - Computer Aided Tomography) uses x-rays to image a section of the body, organ or tissue.
		The disavantages of CT scanning is the use of radiation, which if used repeatedly, can damage cells.
		MRI scanning allows imaging without the use of radiation and increasingly this form of medical imaging is currently gaining favour.
	www.healthguidesonline.com /CAT_Scans.html (180 words)

	CAT Scans for Prostate Cancer
		A CAT scan uses X-rays and computers to produce an image of a cross-section of the body.
		Generally, a CAT scan is only used if the cancer is large, looks aggressive, or associated with a very high PSA level.
		If a dye (also called intravenous contrast material) is required for your CAT scan, you may be instructed to have a blood test first.
	my.webmd.com /NR/internal.asp?GUID={1FCB4029-54F6-4362-A1D6-1BF0F32FD95A}?z=1688_50814_6502_00_16 (434 words)

	black cat scans \| Breeding Cats
		CAT scans use X-rays and computers to help your doctor locate any strained vegetable soup, fl coffee, plain Jell-O, tomato juice, and ginger ale.
		Luhrs Black Cat Diecut: Large, heavy cardboard fl cat diecut, Horizontal mark at mouth is a result from splicing scans and does not appear on diecut.
		India ink scans especially well, because of its opacity, Dick Blick still uses the same formula for Black Cat Ink that was in use generations ago.
	www.tonkinese.co.uk /black_cat_scans.html (312 words)

	CAT Scan Info
		The main feature of the CAT scanner is a large "ring".
		CAT scans of the body and head can be used to diagnose a wide variety of medical conditions.
		Most CT scans can be arranged within a 48 hours or when it is convenient for your schedule.
	www.vipdocs.com /ct_scans.htm (575 words)

	Cat Scans
		Many anti-cat-scan maniacs think that all cats are frightened out of their minds by scanners.
		Her neighborhood group was complaining about some cat or cats roaming the area and taunting indoor cats through the windows.
		I'll be attempting a cat scan of Frost sometime soon.
	www.mightydrake.com /CatScans (801 words)

	PET Scans
		PET scans are still in the experimental phase, and are one of the newest breast cancer diagnostic techniques around.
		One example is a combined PET and CAT Scan test, available in some centers.
		PET scans are available in only very few centers, and they are an expensive, sophisticated test that requires exceptional expertise.
	www.breastcancer.org /testing_pet.html (285 words)

	WRAL.com - Health Team - Full-Body CAT Scans Have Benefits, Risks Over Time (Site not responding. Last check: 2007-11-06)
		One CAT scan is not of concernl; it is several scans over several years that could be a problem.
		Making CAT scans a routine way to spot problems may bring risks that outweigh the benefits, but Deubel said he will continue to get the scans.
		The potential benefits of a CAT scan far outweigh the risks for adults who need the test to diagnose a problem.
	www.wral.com /health/3745946/detail.html (329 words)

	TIME.com: No Need to Panic Over Kid CAT Scans -- Page 1
		Parents should not be panicked by recent news reports of children at risk of cancer caused by computed tomography (CAT) scans, say experts, including the doctor who led one of the widely reported studies picked up by news organizations.
		CAT is a high-tech tool that uses multiple X-ray images to create 3-D views of a patient's internal organs.
		CAT scans clearly help doctors diagnose and treat disease, but as two recent studies suggest, the radiation dose they deliver also poses risks, especially for children and particularly since the use of CAT scans to diagnose appendicitis, for example, has become so widespread.
	www.time.com /time/health/article/0,8599,96536,00.html (579 words)

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