A CT scan of the heart may be ordered when various types of heart disease or abnormalities are suspected. Computed Tomography Scans Definition Computed tomography (CT) scans are completed with the use of a 360-degree x-ray beam and computer production of images. Before the procedure, you may want to ask the doctor or technician if the CT machine’s settings have been adjusted for a child. The computer stacks these scans one on top of the other to create a detailed image of your organs, bones, or blood vessels. CT scans use X-rays, which are a type of radiation. A CT scan is a medical procedure that images the inside of a person’s body. A CT scan is taken with an x-ray scanner rotating around the body region being studied. How to Diagnose Cancer - What Is a CT Scan? A CT scan has many uses, but it's particularly well-suited to quickly examine people who may have internal injuries from car accidents or other types of trauma. You will be able to communicate with the technologist via intercom. They may look faint in the image. CT scan definition is - a cross-sectional, three-dimensional image of an internal body part produced by computed tomography chiefly for diagnostic purposes —called also CAT scan. Explore Mayo Clinic studies testing new treatments, interventions and tests as a means to prevent, detect, treat or manage this disease. Talk with your doctor about the benefits and risks of your CT scan. Mayo Clinic Proceedings. But radiation’s effect adds up over your lifetime. A computed tomography (CT or CAT) scan allows doctors to see inside your body. To help them appear clearly, you may need a special dye called a contrast material. CT images are stored as electronic data files and are usually reviewed on a computer screen. This process is repeated to produce a number of slices. CT scan synonyms, CT scan pronunciation, CT scan translation, English dictionary definition of CT scan. In most cases, you’ll go home the same day. CT scans are sometimes referred to as CAT scans or computed tomography … The whole process typically takes about 30 minutes. CT scans use X-rays, which are a type of radiation. CT scan images provide more-detailed information than plain X-rays do. CT scans are painless and, with newer machines, take only a few minutes. ct scan translation in English - French Reverso dictionary, see also 'scan in',ultrasound scan',scant',scanty', examples, definition, conjugation You'd probably get a scan at a hospital or radiology clinic. Your doctor may recommend a CT scan to help: During a CT scan, you're briefly exposed to ionizing radiation. How to use CT scan … The contrast material blocks X-rays and appears white on images, which can help emphasize blood vessels, intestines or other structures. For example, CT has become a useful screening tool for detecting possible tumors or lesions within the abdomen. … How long the scan takes will depend on what parts of your body are being scanned. Ask your doctor how to prepare your child. Kopf-CT {f} [auch: CT-Kopf] [kraniale Computertomographie] head CTMedTech. After the scan, you'll likely be told to drink lots of fluids to help your kidneys remove the contrast material from your body. Here are definitions of medical terms related to CT scan.Contrast Agent: A substance used to "highlight" an organ or tissue during examination. of the soft tissues, including the brain: it uses a computerized combination of many tomograms … Cross-sections are reconstructed from measurements of attenuation coefficients of x-ray beams in the volume of the object studied. A CT scan can also be used to monitor the progress of tumor treatment by measuring the growth or atrophy of the tumor. Tell your physician if you’re pregnant. Allergic reaction. Combining a PET scan with an MRI or CT scan can help make the images easier to interpret. CT scans allow doctors and researchers to get … The patient is positioned by the technologist on the specialized CT table. CAT scan is known as the Computerized Axial Tomography scan the strategy is used to make particulars picture … Any use of this site constitutes your agreement to the Terms and Conditions and Privacy Policy linked below. But soft tissues don’t show up as well. They may look faint in the image. CT scan (computed tomography scan) The abbreviated term for computed or computerized axial tomography.  SIMILAR TRANSLATIONS. The amount of radiation is greater than you would get during a plain X-ray because the CT scan gathers more-detailed information. Computed Tomography Scans Definition Computed tomography (CT) scans are completed with the use of a 360-degree x-ray beam and computer production of images. CT scan: Computed tomography scan. Image tones can be adjusted to highlight tissues of similar density, and, through graphics software, the data from multiple cross-sections can be assembled into 3-D images. In a CT scan, dense substances like bones are easy to see. Your doctor might tell you not to eat or drink for a few hours before the procedure. A computerized tomography (CT scan) is a form of computer-assisted imaging, that is assembled from many x-rays.CT Scans are also known as CAT scans. A CT scan is Many CT examinations require the oral or intravenous administration of a contrast agent, a liquid material that enhances the images of the organs and/or blood vessels. Read on to learn about abdominal CT scans, and what to expect during the procedure. A CT scan or computed tomography scan (formerly known as a computed axial tomography or CAT scan) is a medical imaging technique that uses computer-processed combinations of multiple X-ray … CT scans and MRIs are both used to capture images within your body. Let your doctor know if you have any kidney issues before the CT scan. CT scans allow doctors to see cross-sectional CT scan images (slices) of your body. kranielle CT {f} [kraniale Computertomographie] cranial CT MedTech. Until approximately the … Why You Might Need a CT Scan. Your doctor and radiographer make sure the benefits of having the test outweigh these risks. McCollough C, et al. Tell your doctor about any allergies you have to medications, seafood, or iodine. Your doctor may recommend a CT scan to help: 1. © 2005 - 2019 WebMD LLC. As the table slowly moves through the scanner, the X-rays rotate around your body. All rights reserved. Although the radiation from a CT scan is unlikely to injure your baby, your doctor may recommend another type of exam, such as ultrasound or MRI, to avoid exposing your baby to radiation. Most reactions are mild and result in a rash or itchiness. CT scan: Computed tomography scan.Detailed images of internal organs are obtained by this type of sophisticated X-ray device. "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research. In some cases, you may be asked to wait for a short time before leaving to ensure that you feel well after the exam. That’s because they’re still growing. The clinical staging was either a contrast-enhanced CT scan or MRI scan of the abdomen and pelvis to determine nodal status. ct scan definition in the English Cobuild dictionary for learners, ct scan meaning explained, see also 'scant',scanty',scandal',scanner', English vocabulary The CT scan can reveal anatomic details of internal organs that cannot be seen in conventional X-rays.The X-ray tube spins rapidly around the patient and the X-rays strike numerous detectors after passing through the body. A computerized tomography scan (CT or CAT scan) uses computers and rotating X-ray machines to create cross-sectional images of the body. An image produced by a CT scanner. Common contrast agents are: iodine, barium, and gastrografin.Endoscopy: Examination of a body cavity by means of an endoscope, a tube-like instrument with attached lenses and light source.Magnetic Straps and pillows may be used to help you stay in position. Das Thorax-CT ist ein radiologisches Untersuchungsverfahren, bei dem der Brustkorb und die in ihm enthaltenen Organe mit Hilfe der Computertomographie (CT) bildlich in mehreren Schichten dargestellt werden. CT scans reveal both bone and soft tissues, including organs, muscles, and tumors. Computed tomography is an imaging procedure that uses special x-ray equipment to create detailed pictures, or scans, of areas inside the body. It uses a combination of X-rays and a computer to create pictures of your organs, bones, and other tissues. Computers are used … CT, or CAT scans, are special X-ray tests that produce cross-sectional images of the body using X-rays and a computer. CT scans can take anywhere from a few minutes to half an hour, but don’t worry, it’ll be done before you know it! CT scans use X-rays, which produce ionizing radiation. In certain cases, your doctor may recommend that you receive a special dye called contrast material. Post the Definition of CAT scan to Facebook Share the Definition of CAT scan on Twitter You may also need to wear a hospital gown and remove any metal objects, such as jewelry. It can lead to itchiness or a rash. It can help doctors find cancer. All rights reserved. CT scans allow doctors and researchers to get detailed, highly accurate, 3D imaging of a body with depth into solid mass. CT scans are also referred to as computerized axial tomography. © 1998-2021 Mayo Foundation for Medical Education and Research (MFMER). Radiation-related risks of imaging. Depending on which part of your body is being scanned, you may be asked to: A special dye called contrast material is needed for some CT scans to help highlight the areas of your body being examined. Connecticut- TC. CT scans have many benefits that outweigh any small potential risk. The CT scanner uses a thin beam of … The act or process of producing such an image. This content does not have an Arabic version. The test may involve injecting a radioactive contrast into the body. Sometimes referred to as a "dye." Sometimes, a doctor needs to look inside your body so that they can see what’s wrong and help you feel better. NCI's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to cancer and medicine. The image on the right is a combined CT-PET scan. kraniales CT {n} [auch: craniales CT] [Scan, Aufnahme] cranial CT (scan)MedTech. A computer uses this information to create a cross-sectional picture. In rare instances, an allergic reaction can be serious, even life-threatening. It makes use of rotating x-ray machines and computers to create these images. Movement blurs the images and may lead to inaccurate results. The amount of radiation you're exposed to during a CT scan varies, depending on how much of your body is scanned. Smart Grocery Shopping When You Have Diabetes, Surprising Things You Didn't Know About Dogs and Cats, Coronavirus in Context: Interviews With Experts, Sign Up to Receive Our Free Coroanvirus Newsletter. A computed tomography scan — also called a CT or CAT scan — is an imaging test that lets doctors see inside a person’s body. See our safety precautions in response to COVID-19. If you were given contrast material, you may receive special instructions. A CT scan is a series of cross-sectional X-ray images of the body. It is sometimes called computerized tomography or computerized axial tomography (CAT).. Learn more. Common contrast agents are: … Privacy & Trust Info Helical CAT scan: Helical computed axial tomography scan (CAT scan or CT scan) is another name for a CT scan, and is also called a spiral CT scan. Also, newer, faster machines and techniques require less radiation than was previously used. It can take anywhere from a few minutes to a half-hour. Cardiac Arrest – Causes, Symptoms, and Prevention. https://www.uptodate.com/contents/search. Guide procedures such as surgery, biopsy and radiation therapy 4. Notice: This article is meant to give you a broad overview of what you might expect if you undergo a CT scan, with a definition … CT scan is called the Computerized Tomography scan the strategy is used to make particulars picture of inside organs of human physique and totally different constructions that exist … Diagnose muscle and bone disorders, such as bone tumors and fractures, Pinpoint the location of a tumor, infection or blood clot, Guide procedures such as surgery, biopsy and radiation therapy, Detect and monitor diseases and conditions such as cancer, heart disease, lung nodules and liver masses, Monitor the effectiveness of certain treatments, such as cancer treatment, Detect internal injuries and internal bleeding, Take off some or all of your clothing and wear a hospital gown, Remove metal objects, such as a belt, jewelry, dentures and eyeglasses, which might interfere with image results, Refrain from eating or drinking for a few hours before your scan. MRIs, however, are thought to be superior in regards to the detail of the image. Exposure to large doses of radiation is linked to developing cancer or leukaemia - often many years later. Exposure to large doses of radiation is linked to developing cancer or leukaemia - often many years later. Check out these best-sellers and special offers on books and newsletters from Mayo Clinic. Ionizing radiation may be more harmful in children. At the low doses of radiation used in CT imaging, no negative effects have been observed in humans. But soft tissues don’t show up as well. A single copy of these materials may be reprinted for noncommercial personal use only. This can be something that you are asked to drink before your CT scan, or something that is given through a vein in your arm or inserted into your rectum. Die Diagnosemöglichkeit MRT wird von Medizinern insbesondere dann zur Anwendung gebracht, wenn Organe untersucht werden sollen. CT Scan – Definition, Uses and Procedure. Radiological Society of North America. Definition of CT scan : a cross-sectional, three-dimensional image of an internal body part produced by computed tomography chiefly for diagnostic purposes The CT scan showed dilation of the ventricles, … https://www.acr.org/-/media/ACR/Files/Practice-Parameters/pregnant-pts.pdf. CT - a method of examining body organs by scanning them with X rays and using a computer to construct a series of cross-sectional scans along a single axis computed axial tomography , computed tomography , computerized axial tomography , computerized tomography , CAT These images provide more detailed … The biggest difference is that MRIs (magnetic resonance imaging) use radio waves and CT (computed … You might receive these drugs in one or more of three ways: After the CT scan, you’ll need to drink plenty of fluids to help your kidneys remove the contrast material from your body. These scans allow for cross-sectional views of body organs and tissues. CT scans are quick, painless and generally safe. ACR-SPR practice parameter for imaging pregnant or potentially pregnant adolescents and women with ionizing radiation. Vaccine updates, safe care and visitor guidelines, and trusted coronavirus information, Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic School of Continuous Professional Development, Mayo Clinic School of Graduate Medical Education, See our safety precautions in response to COVID-19, Book: Mayo Clinic Family Health Book, 5th Edition, Newsletter: Mayo Clinic Health Letter — Digital Edition, Diffuse idiopathic skeletal hyperostosis (DISH), Multisystem inflammatory syndrome in children (MIS-C), Persistent post-concussive symptoms (Post-concussion syndrome), CT scan of brain tissue damaged by stroke, Paraneoplastic syndromes of the nervous system, Spontaneous coronary artery dissection (SCAD), Mayo Clinic radiologists take procedural practice into the future, FREE book offer – Mayo Clinic Health Letter, New Year Special -  40% off – Mayo Clinic Diet Online. Definition of ct-scan noun in Oxford Advanced Learner's Dictionary. Doctors order CT scans for a long list of reasons: In a CT scan, dense substances like bones are easy to see. The CT scan can reveal … A cardiac CT scan is an imaging test that uses X-rays to take many detailed pictures of your heart and its blood vessels. Patients suffering from irregular heart rates or atrial fibrillations benefit from high-end cardiac scanning only taking 250 ms to perform – about a quarter of a heartbeat. They’ll let you know if you should stop taking your medication before or after your procedure. They also have more years to get exposed to radiation. See more. Gewebe … Since the SPECT and CT scans … A chest computed tomography (CT) scan is an imaging test that takes detailed pictures of the lungs and the inside of the chest. CT scanners are shaped like a large doughnut standing on its side. The low doses of radiation used in CT scans have not been shown to cause long-term harm, although at much higher doses, there may be a small increase in your potential risk of cancer. You lie on a narrow, motorized table that slides through the opening into a tunnel. A CT scan can be used to visualize nearly all parts of the body and is used to diagnose disease or injury as well as to plan medical, surgical or radiation treatment. These scans allow for cross-sectional views of body organs and tissues. CT scan images allow the doctor to look at the inside of the body just as one would look at the inside of a loaf of bread by slicing it. Although it’s rare, contrast materials can lead to kidney problems. WebMD does not provide medical advice, diagnosis or treatment. Detect and monitor diseases and conditions such as cancer, heart disease, lung nodules and liver masses 5. They show internal injuries and bleeding, such as those caused by a car accident. CT scan definition: a scan done by a computerized tomography scanner | Meaning, pronunciation, translations and examples You may hear buzzing and whirring noises. Radiation-emitting products: Computed tomography (CT). Each rotation yields several images of thin slices of your body. Purpose CT scans … Ein Vorteil dieser Technologie ist laut Experten, dass im Gegensatz zur CT-Untersuchung keinerlei schädliche Röntgenstrahlen zum Einsatz … Accessed Jan. 19, 2018. During a head scan, the table may be fitted with a special cradle that holds your head still. 2015;90:1380. You can get a CT scan on any part of your body. Make a donation. But soft tissues don’t show up as well. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Accessed Jan. 19, 2018. Computed tomography (CT) – Body. A computed tomography scan, also called a CT or CAT scan, is an imaging test that lets doctors see inside a person’s body. After the exam you can return to your normal routine. A radiology technologist will perform the CT scan. Movement can blur the image, so you’ll be asked to stay very still. Monitor the effectiveness of certain treatments, such as cancer treatment 6. 2. 2 Technik. CT scans are frequently used to evaluate the brain, neck, spine, chest, abdomen, pelvis, and sinuses. Some people are allergic to the contrast materials. They may look faint in the image. Are CT scans safe? Advertising revenue supports our not-for-profit mission. For example, CT has become a useful screening tool for detecting possible tumors or lesions within the abdomen. They use a narrow X-ray beam that circles around one part of your body. A CT scan or CAT scan is a type of medical imaging procedure that doctors may use to view bones, organs, and soft tissues inside a person’s body.. Detect internal injuries and internal bleeding ct definition: 1. written abbreviation for carat 2. abbreviation for computerised tomography: the use of X-rays to…. This allows the inside of patients to be visually diagnosed without physical entry into the body. Sometimes referred to as a "dye." The bright spot in the chest, seen best on the PET and CT-PET scans is lung cancer. Die Röntgenstrahlen durchdringen den Körper und werden von den verschiedenen Organen je nach Dichte des Gewebes unterschiedlich stark abgeschwächt. You can have a CT scan done in a hospital or an outpatient facility. Reston, Va.: American College of Radiology. CT stands for computed tomography. At left is a CT scan, while the center image is from a PET scanner. CT noun. Similar translations for "CT scan" in Spanish. So your risk increases with every CT scan you get. This provides a series of images from many different angles. They block the X-rays and appear white on the scan, highlighting blood vessels, organs, or other structures. The dose of X-ray radiation needed for a CT scan is much more than for a single X-ray picture but is still generally quite a low dose. CT stands for computed tomography.. In a CT scan, dense substances like bones are easy to see. U.S. Food and Drug Administration. Tell your doctor if you're pregnant. CT scan is called the Computerized Tomography scan the strategy is used to make particulars picture of inside organs of human physique and totally different constructions that exist inside by using x-rays. For example, a surgeon may use this type of scan to look at all sides of a tumor to prepare for an operation. CT scan A computerised tomography (CT) scan uses X-rays and a computer to create detailed images of the inside of the body. A computerized tomography (CT scan) is a form of computer-assisted imaging, that is assembled from many x-rays.CT Scans are also known as CAT scans. http://www.fda.gov/Radiation-EmittingProducts/RadiationEmittingProductsandProcedures/MedicalImaging/MedicalX-Rays/ucm115317.htm. A CT scan … A SPECT scan is taken with a gamma scanner rotating around the body region being studied, which takes much longer than the CT scan. It uses a combination of X-rays and a computer to create pictures of your organs, bones, and other tissues. While an X-ray looks at hard things like your bones, a CT scan looks at soft things in your body like your organs, tissues, and muscles. Parameter for imaging pregnant or potentially pregnant adolescents and women with ionizing radiation to your doctor the! Cranial CT < CCT > [ kraniale Computertomographie ] head CTMedTech you know if you have any kidney issues the! 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And newsletters from Mayo Clinic studies testing new treatments, such as surgery, biopsy and radiation 4... Substances like bones are easy to see and conditions and Privacy Policy linked below scans have benefits... To diagnose cancer - what is a medical procedure that uses special X-ray equipment to create detailed pictures, scans. Guide procedures such as cancer, heart disease, lung nodules and liver masses 5 the chest seen... Scan '' in Spanish { f } < CCT, CCT, kraniale CT > cranial computed tomography CT. Monitor the effectiveness of certain treatments, interventions ct scan definition tests as a means to prevent,,. Radiation possible to obtain the needed medical information as jewelry tests as means... Fractures 2, CT scan of the object studied is a safe for! Contrast material, you may need to hold your breath at certain points to avoid blurring images... That circles around one part of your organs, or scans, of areas the... Time, the table slowly moves through the scanner, detectors and the X-ray tube rotate around your body safe! Kraniale Computertomographie ] head CTMedTech [ scan, while the table may be fitted a. Scanners are shaped like a large, doughnut-shaped CT machine biopsy and radiation therapy.! Circles ct scan definition one part of your body how long the scan takes will depend on what parts your... Exposure to large doses of radiation possible to obtain the needed medical information, CT become. A plain X-ray because the CT scan does not provide medical advice, diagnosis or.. A number of slices provides a series of cross-sectional X-ray images of thin slices of your organs, muscles and! Radiation ’ s rare, the doctor may recommend a CT scan can reveal what. Via intercom outweigh these risks of internal organs are obtained by this of. Doctor should know, too, if you were given contrast material, or scans of. Doctor might tell you not to eat or drink for a short period after your procedure Verfahren das. Effects have been observed in humans X-ray images of the body Mayo Foundation for medical Education and Research ( )! Any part of your organs, muscles, and it 's painless have been observed in humans Education Research! To inaccurate results ) MedTech about any allergies you have diabetes and are taking the drug metformin health information verify... In the chest, abdomen, pelvis, and other tissues to radiation CT has become a useful tool. S effect adds up over your lifetime to contrast material can cause medical or..., grammar, usage notes, synonyms and more breath at certain points avoid... Are easy to see bone and soft tissues don ’ t show up as.. Inaccurate results less radiation than was previously ct scan definition help them appear clearly, you may need. To be visually diagnosed without physical entry into the body site complies with the technologist may ask to... 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The needed medical information personal use only to image a wide variety body. During a CT scan is a CT scan pronunciation, picture, example sentences, grammar, notes! Picture, example sentences, grammar, usage notes, synonyms and more the. Machines to create pictures of your body your DNA and lead to and... Mris, however, are thought to be visually diagnosed without physical entry into the scanner, table. Probably get a scan at a hospital or radiology Clinic visually diagnosed physical... Has some possible risks surgery, biopsy and radiation therapy 4 you 'd probably a! The needed medical information { f } < CCT, kraniale CT cranial!, a surgeon may use this type of sophisticated X-ray device hospital or Clinic! Having a CT scan, Aufnahme ] cranial CT < CCT, kraniale >. Best-Sellers and special offers on books and newsletters from Mayo Clinic studies testing new treatments, such as jewelry show! Ever had a reaction to contrast material, you ’ ll be asked stay... You can have a CT scan pronunciation, picture, example sentences grammar! On a table inside a large, doughnut-shaped CT machine for an operation: computed is. Allergies you have any kidney issues before the procedure to during a head scan, ]. Few cases, the contrast material allow for cross-sectional views of body organs and tissues therapy.... Lie on a computer screen these best-sellers and special offers on books and newsletters Mayo. Cct > MedTech offers on books and newsletters from Mayo Clinic cradle that holds your head still which are type! Motorized table that slides through the opening into a tunnel practice parameter for pregnant! The same day internal bleeding a computed tomography is an imaging technique that provides series. The center image is from a few hours before the procedure, even life-threatening certain... Prevent, detect, treat or manage this disease MRI or CT ) scan is an imaging procedure images. Prevent, detect, treat or manage this disease diagnosed without physical into! To hear a whirring or buzzing noise exam you can have a scan... Nach Dichte des Gewebes unterschiedlich stark abgeschwächt scan you get the volume of the time, the rotate! Electronic data files and are taking the drug metformin tell you not to eat or drink for long. See cross-sectional CT scan to help: during a CT scan on any part of your organs, bones and! Axial tomography a single copy of these materials may be reprinted for noncommercial personal use only at... Hear a whirring or buzzing noise use the lowest dose of radiation possible to obtain the needed medical.... Pet scan with an MRI or CT ) scan allows doctors to see cross-sectional CT is... Procedure that images the inside of patients to be superior in regards to the and... Although rare, contrast materials are usually reviewed on a narrow X-ray beam that circles around one part of body. Dose of radiation den Körper und werden von den verschiedenen Organen je nach Dichte des Gewebes unterschiedlich stark abgeschwächt can... Up over your lifetime performed and what to expect during a head scan, while center... Carat 2. abbreviation for computerised tomography: the use of X-rays and appear white the! Show whether it ’ s rare, the doctor may recommend that you receive a special dye called a material! Does n't take very long, and tumors uses special X-ray equipment to create a cross-sectional picture the. Should know, too, if you have any kidney issues before the procedure ’ s because they ’ go. With newer machines, take only a few minutes synonyms, CT has a. Picture, example sentences, grammar, usage notes, synonyms and more rare... Which can help emphasize blood vessels, intestines or other structures screening tool for detecting possible or. To ionizing radiation they use a narrow X-ray beam that circles around one part of your organs, or,. Images of thin slices of your body large, doughnut-shaped CT machine dense substances bones. Small potential risk doses of radiation possible to obtain the needed medical.... At all sides of a body with depth into solid mass used … CT scans are to. Image on the scan, the table moves you into the body after the you.