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Glomus jugulare tumors are diagnosed by physical examination and various scans including:.Cerebral angiography(injection of dye so that the blood vessels of the neck and brain can be seen with x-rays) CT scan MRI scan.
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Cerebral angiography is a procedure that uses a special dye(contrast material) and x-rays to see how blood flows through the brain.Vertebral angiogram; Angiography- head; Carotid angiogram.Cerebral angiography is done in the hospital or large radi...
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During a physical examination, a health care provider studies a patient''s body to determine the presence or absence of physical problems.
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A magnetic resonance imaging(MRI) scan of the head is a noninvasive method to create detailed pictures of the brain and surrounding nerve tissues.Unlike x-rays and computed tomographic( CT) scans, which use radiation, MRI uses powerful magnets and...
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A brain tumor is an abnormal growth of tissue in the brain. Unlike other tumors, brain tumors spread by local extension and rarely metastasize(spread) outside the brain.
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Congenital brain defects are a group of disorders of brain development.Brain development begins shortly after conception and continues throughout the growth of a fetus. A complex genetic program coordinates the formation, growth, and migration of ...
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The brain is the part of the central nervous system located in the skull. It controls the mental processes and physical actions of a human being.The brain, along with the spinal cord and network of nerves, controls information flow throughout the ...
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The brain is a large mass of soft nervous tissue made up of both neurons and supporting glial cells lying within the cranium of the skull. The brain contains both gray and white matter.
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Traumatic brain injury(TBI) is the result of physical trauma to the head causing damage to the brain. This damage can be focal, or restricted to a single area of the brain, or diffuse, affecting more than one region of the brain.
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The brain is the part of the central nervous system(CNS) inside the skull(the part outside the skull is the spinal cord). It gives rise to cognitive thought processes and controls various body functions including muscular activity, speech, sight, ...
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A brain tumor is an abnormal growth of tissue, either malignant(cancerous) or benign(noncancerous), in the brain. Each year, more than 17,000 brain tumors are diagnosed in the United States.A benign brain tumor is composed of slow-growing noncance...
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A brain biopsy is the removal of a small piece of brain tissue for the diagnosis of abnormalities of the brain, such as Alzheimer''s disease, tumors, infection, or inflammation.By examining the tissue sample under a microscope, the biopsy sample pr...
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Brain abscess is a bacterial infection within the brain.The brain is usually well insulated from infection by bacteria, protected by the skull, the meninges(tissue layers surrounding the brain), the immune system, and the highly regulated barrier ...
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Congenital brain defects are a group of disorders of brain development that are present at birth.Brain development begins shortly after conception and continues throughout the growth of a fetus. A complex genetic program coordinates the formation,...
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Controls mental and physical actions of the organism.The brain, with the spinal cord and network of nerves, controls information flow throughout the body, voluntary actions, such as walking, reading, and talking, and involuntary reactions, such as...
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Like all other parts of the body, the brain and central nervous system are made up of cells that ordinarily grow and divide to create new cells as needed. This is usually an orderly process; but when cells lose their ability to grow normally or to...
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Depending on the study being done, you may need to lie on your stomach, back, or side.A cranial CT scan produces images from your upper neck to the top of your head.You must be still during the exam, because movement causes blurred images. If you ...
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An arteriogram is an imaging test that uses x-rays and a special dye to see inside the arteries. It can be used to see arteries in the heart, brain, kidney, and many other parts of the body.
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Angiography is the x-ray(radiographic) study of the blood vessels. An angiogram uses a radiopaque substance, or contrast medium, to make the blood vessels visible under x ray.
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CTA creates images of arteries throughout the body. A contrast medium (x-ray dye) is injected to make the blood vessels stand out. Pictures are then taken with the CT scanner. The CT images are processed by a computer to make a three-dimensional picture.
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Angiography is a special type of x-ray that allows your coronary arteries to be viewed and recorded on film. Your doctor can see if the blood vessels to your heart are clogged.
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Angiography is the x-ray(radiographic) study of the blood vessels. An angiogram uses a radiopaque substance, or contrast medium, to make the blood vessels visible under x ray.
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Angiography is the x-ray(radiographic) study of the blood vessels. An angiogram uses a radiopaque substance, or contrast medium, to make the blood vessels visible under x ray.
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Angiography is the x-ray study of the blood vessels. An angiogram uses a radiopaque substance, or dye, to make the blood vessels visible under x ray.
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Angiography is the x-ray study of the blood vessels. An angiogram uses a radiopaque substance, or dye, to make the blood vessels visible under x ray.
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Talk to your doctor about the risks and complications of angioplasty. Peripheral angioplasty is a procedure that helps open blockages in peripheral arteries. These vessels carry blood to your lower body and legs.
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Women who suffer from chest pain but show clear arteries on an angiogram may have a different type of blocked artery, where plaque builds up evenly on the inner surface or bulges outward.
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Hepatic angiography is an x-ray study of the blood vessels that supply the liver. The procedure uses a catheter (thin, flexible tube) that is placed into a blood vessel through a small incision. A specially trained doctor called an interventional radiologist usually does the procedure.
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A computed tomography(CT) scan is an imaging method that uses x-rays to create cross-sectional pictures of the body.CAT scan; Computed axial tomography scan; Computed tomography scan.You will be asked to lie on a narrow table that slides into the ...
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Computed tomography (CT) is a test that combines x-rays and computer scans. The result is a detailed picture that can show problems with soft tissues (such as the lining of your sinuses), organs (such as your kidneys or lungs), and bones.
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Detailed information on ultrafast computed tomography scans, also called ultrafast CT scan or ultrafast CAT scan, including information on how the procedure is performed
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Detailed information on CT scan, including how the CT scan is performed and what happens after the procedure
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Detailed information on computed tomography scans, also called CT scan or CAT scan, including information on how the procedure is performed
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Detailed information on ultrafast computed tomography (CT) scan, including reasons for the procedure, risks of the procedure, what to expect, and discharge instructions
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Computed tomography(also known as CT, CT scan, CAT, or computerized axial tomography) scans use x rays to produce precise cross-sectional images of anatomical structures.With the development of modern computers, the scans enhanced digital capabili...
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Computed tomography(CT) scanning is a valuable diagnostic tool that provides physicians with views of internal body structures. During a CT scan, multiple x rays are passed through the body, producing cross-sectional images, or"slices," on a catho...
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Computed tomography(CT), formerly referred to as computerized axial tomography(CAT), is a common diagnostic imaging procedure that uses x rays to generate images(slices) of the anatomy.Computed tomography(CT) is an x-ray imaging procedure used for...
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Computed tomography(CT) scans are completed with the use of a 360-degree x-ray beam and computer production of images. These scans allow for cross-sectional views of body organs and tissues.CT scans are used to image a wide variety of body structu...
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Computed tomography scanning, also called CT scan, CAT scan, or computerized axial tomography, is a diagnostic tool that provides views of internal body structures using x rays. In the field of mental health, a CT scan may be used when a patient s...
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What is the difference between a pelvic CT scan and an abdominal CT scan?
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Is there an alternative to iodine as a contrast medium in a CT scan?
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Magnetic resonance imaging(MRI) is a noninvasive way to take pictures of the body.Unlike x-rays and computed tomographic( CT) scans, which use radiation, MRI uses powerful magnets and radio waves. The MRI scanner contains the magnet.
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Cardiac nuclear imaging is also called a "perfusion scan.” A radioactive tracer is delivered into the bloodstream. Then a camera scans the tracer in the blood as it flows through the heart muscle.
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New MRI machines and new techniques result in images that show prostate cancer in much greater detail, allowing biopsies to be targeted more precisely, and thus cancer staging can be more accurate as well.
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Detailed information on magnetic resonance imaging, including how the image is performed and what happens following the procedure
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Magnetic resonance imaging (MRI) is a test that lets your doctor see detailed pictures of the inside of your body. MRI combines the use of strong magnets and radio waves to form an MRI image.
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A Harvard Medical School physician answers your question about the safety of MRIs for those who have stents.
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When I had an MRI of my knee, I was told the test was dangerous for people who have metal devices in their bodies. Since then, I developed angina and my cardiologist put in a metal stent. If I need an MRI in the future, will I be able to get one?
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Studies have found that MRI tests used in addition to mammography detected more cancers in women at high risk for breast cancer. Women at average risk would not necessarily benefit from the additional testing.
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For women at high genetic risk, adding MRI screening to mammography may improve early detection of breast cancer.
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Is a regular MRI more accurate then an open MRI?
Diana Post, M.D., is an assistant professor of medicine at Harvard Medical School and a member of the Department of Medicine at Brigham and Women's Hospital.
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Persons with pacemakers cannot get an MRI because it conflicts with the pacemaker's function. Future pacemakers will likely be made MRI-safe, but this will probably take at least several more years.
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How safe is it for a baby who is 6 months old to have an MRI?
Claire McCarthy, M.D., is a senior medical editor for Harvard Health Publications. She is an instructor in pediatrics at Harvard Medical School, an attending physician at Children's Hospital of Boston, and co-director of the pediatrics department at Martha Eliot Health Center, a neighborhood health service of Children's Hospital. The author of two books, "Learning How the Heart Beats" and "Everyone's Children", Dr. McCarthy was a regular columnist for "Sesame Street Parents Magazine" from 1995 to 1998 and is currently a contributing editor for "Parenting Magazine".
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Magnetic resonance imaging(MRI) is one of the newest, and perhaps most versatile, medical imaging technology available. Doctors can get highly refined images of the body''s interior without surgery using MRI.
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Magnetic resonance imaging(MRI) is a diagnostic imaging procedure that uses radio waves, a magnetic field, and a computer to generate images of the anatomy.MRI is used to visualize the body to assist doctors in their efforts to diagnose certain di...
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Magnetic resonance imaging(MRI) is the newest, and perhaps most versatile, medical imaging technology available. Doctors can get highly refined images of the body''s interior without surgery, using MRI.
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Magnetic resonance imaging(MRI) is one of the newest diagnostic medical imaging technologies that uses strong magnets and pulses of radio waves to manipulate the natural magnetic properties in the body to generate a visible image. In the field of ...
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Magnetic resonance imaging(MRI) scanners rely on the principles of atomic nuclear-spin resonance. Using strong magnetic fields and radio waves, MRI collects and correlates deflections caused by atoms into images.
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Magnetic resonance imaging(MRI) is a unique and versatile medical imaging modality. Doctors can obtain highly refined images of the body''s interior using MRI.
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In some cases, chemical agents such as gadolinium can be injected to improve the contrast between healthy and diseased tissue.A single MRI exposure produces a two-dimensional image of a slice through the entire target area. A series of these image...
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People with certain kinds of pacemakers or ICDs can safely undergo an MRI, as long as a series of safety precautions is carefully followed.
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Detailed information on magnetic resonance imaging (MRI), including information on how the procedure is performed
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Tympanometry is a test used to detect disorders of the middle ear.Before the test, your health care provider will look inside your ear canal to make sure there is a clear path to your eardrum.Next, a device is placed into your ear. This device cha...
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