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Symptoms of MS may mimic those of many other nervous system disorders. The disease is diagnosed by ruling out other conditions.People who have a form of MS called relapsing-remitting may have a history of at least two attacks, separated by a perio...
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In order to determine whether or not a patient has multiple sclerosis, doctors often rely on the Schumacher criteria:.Patient's symptoms indicate neurological damage in more than one areas.Patient's symptoms have worsened for more than six months....
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There is no single test that confirms the diagnosis of multiple sclerosis and there are a number of other diseases with similar symptoms. While one person's diagnosis may be immediately suggested by symptoms and history, another's may not be confi...
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There is no single test that confirms the diagnosis of multiple sclerosis, and there are a number of other diseases with similar symptoms. While one person's diagnosis may be immediately suggested by her symptoms and history, another's may not be ...
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MS diagnosis is based upon an individual's history of clinical symptoms and neurological examination. A qualified physician, often a neurologist, must thoroughly review all symptoms experienced by an individual to suspect MS.
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Because there is no definitive test that can identify or rule out MS, and the symptoms of MS mimic a number of other diseases, a combination of tests or procedures is required to diagnose the disease. Moreover, for some people (about 10–15%...
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A neurological examination is an essential component of a comprehensive physical examination. It is a systematic examination that surveys the functioning of nerves delivering sensory information to the brain and caring motor commands(Peripheral ne...
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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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Detailed information on magnetic resonance imaging (MRI), including information on how the procedure is performed
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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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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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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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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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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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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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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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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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Cerebrospinal fluid(CSF) analysis is a laboratory test to examine a sample of the fluid surrounding the brain and spinal cord. This fluid is a clear, watery liquid that protects the central nervous system from injury and cushions it from the surro...
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Cerebrospinal fluid(CSF) analysis is a set of laboratory tests that examine a sample of the fluid surrounding the brain and spinal cord. This fluid is an ultrafiltrate of plasma.
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Cerebrospinal fluid(CSF) analysis is a set of laboratory tests that examine a sample of the fluid surrounding the brain and spinal cord. This fluid is an ultrafiltrate of plasma.
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Lumbar puncture(LP) is the technique of using a needle to withdraw cerebrospinal fluid(CSF) from the spinal canal. CSF is the clear, watery liquid that protects the central nervous system from injury and cushions it from the surrounding bone struc...
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Detailed information on spinal tap, also called lumbar puncture A spinal tap, also called lumbar puncture, is done to measure the amount of pressure in the spinal canal and/or to remove a small amount of cerebral spinal fluid (CSF) for testing. Cerebral spinal fluid is the fluid that bathes your child's brain and spinal cord. In some cases, a spinal tap may also be done so medication can be injected into the spinal fluid, or to remove excess CSF in babies with hydrocephalus (a condition in which there is an overproduction or lack of absorption of the cerebral spinal fluid that is found inside the ventricles, fluid-filled areas, inside of the brain). A special needle will be used for the spinal tap.
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A lumbar puncture is also called a spinal tap. A lumbar puncture may be used to look for problems in your brain, spinal cord, and related structures.
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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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Detailed information on magnetic resonance imaging, including how the image is performed and what happens following the procedure
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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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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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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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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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For women at high genetic risk, adding MRI screening to mammography may improve early detection of breast cancer.
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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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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) 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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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 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 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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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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Sensory evoked potential(EP) studies are the measurement of the electrical response of nervous tissue to auditory, visual, and somatosensory stimulation.EP studies, also known as evoked responses, measure the very faint electrical response of the ...
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Your doctor may order evoked potential tests to check the signals your brain and spinal cord (parts of your nervous system) receive from other parts of your body. These tests are also used to check for vision and hearing problems.
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CSF oligoclonal banding is a test to look for inflammation-related substances in the cerebrospinal fluid(CSF), the clear fluid that flows in the space surrounding the spinal cord and brain.Oligoclonal bands are substances called immunoglobulins, w...
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Brainstem auditory evoked response(BAER) is a test to measure the brain wave activity that occurs in response to clicks or certain tones.Evoked auditory potentials; BAEP- brainstem auditory evoked potentials; Evoked response audiometry.You lie on ...
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The results of your hearing test are shown on a graph called an audiogram. This graph shows which types of sounds you can and can't hear. Hearing aids are prescribed based on the results of your audiogram. A sample audiogram is provided below.
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Ophthalmoscopy is an examination of the back part of the eyeball(fundus), which includes the retina, optic disc, choroid, and blood vessels.Direct ophthalmoscopy Indirect ophthalmoscopy Slit-lamp ophthalmoscopy.Direct ophthalmoscopy: You will be s...
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A standard ophthalmic exam is a series of tests done to check your vision and the health of your eyes.Routine eye examination; Eye exam- standard; Snellen chart.The eye doctor will ask questions about your overall health and family''s medical histo...
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An eye examination is a series of tests performed by an ophthalmologist or an optometrist to determine if there are any pre-existing or potential problems with a patient''s vision.Eye examinations measure a person''s ocular health and visual status,...
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Detailed information on eye examinations and at what age they are recommended During an eye exam, an eye doctor reviews your medical history and completes a series of tests to determine the health of your eyes. The information from an eye exam may lead to medical procedures or prescriptions. Eye examinations should take place periodically as follows:
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Detailed information on eye examinations in children Children are different than adults in that a child's brain develops more rapidly. Any problems a child may experience with his/her vision may disrupt the development of visual pathways to the brain. A critical stage of visual development occurs between birth and age 3 to 4 months, during which time the brain must receive clear visual messages from both eyes. Early detection and treatment can prevent loss of vision, learning difficulties, and delayed development.
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Detailed information on eye examinations in children Children are different than adults in that a child's brain develops more rapidly. Any problems a child may experience with his/her vision may disrupt the development of visual pathways to the brain. A critical stage of visual development occurs between birth and age 3 to 4 months, during which time the brain must receive clear visual messages from both eyes. Early detection and treatment can prevent loss of vision, learning difficulties, and delayed development.
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