327 results found
Medical tests
… Electroencephalogram (EEG) On this page: Test Overview Why It Is Done How To Prepare How It Is Done … that measures and records the electrical activity of your brain. Special sensors called electrodes are attached to … hooked by wires to a computer. The computer records your brain's electrical activity on the screen. Or it may record …
Medical tests
… Magnetic Resonance Imaging (MRI) of the Head On this page: Test Overview Why It Is Done How To Prepare How It Is Done … [AV] malformation). Check blood flow or blood clots to the brain. MRI can show bleeding in or around the brain. Check symptoms of a known or suspected head injury . …
Medical tests
… Tomography (CT) Scan of the Head and Face On this page: Test Overview Why It Is Done How To Prepare How It Is Done … vision problems, vertigo , or headaches, that might mean a brain injury, a brain tumour, a ruptured aneurysm , or bleeding inside the …
Medical tests
… Electronystagmography (ENG) On this page: Test Overview Why It Is Done How To Prepare How It Is Done … movements. ENG checks how well the eyes, inner ears , and brain help you keep your balance and position (such as when … whether there is damage or a problem in how the inner ear, brain, or nerves connecting them work. These problems may …
Medical tests
… Spinal Tap (Lumbar Puncture) On this page: Test Overview Why It Is Done How To Prepare How It Is Done … fluid ( cerebrospinal fluid, or CSF ) that surrounds the brain and spinal cord. During a spinal tap, a needle is … ), inflammation, cancer, or bleeding in the area around the brain or spinal cord (such as subarachnoid hemorrhage ). …
Medical tests
… Angiogram of the Head and Neck On this page: Test Overview Why It Is Done How To Prepare How It Is Done … to look at the large arteries in the neck that lead to the brain. An angiogram of the head (cerebral angiogram) can be … the four arteries (four-vessel study) carrying blood to the brain. During an angiogram, a thin, soft tube called a …
Medical tests
… Photon Emission Computed Tomography (SPECT) On this page: Test Overview Why It Is Done How To Prepare How It Is Done … tracer is located. A SPECT scan is often used to evaluate brain, head, and neck problems; to look at blood flow to the … degenerative bone diseases such as osteoporosis . Evaluate brain conditions such as Alzheimer's disease and other types …
Medical tests
… How It Is Done How It Feels Risks Results What Affects the Test Overview Positron Emission Tomography … emission tomography (PET) scan is done to: Study the brain's blood flow and metabolic activity. A PET scan can … disease , stroke , and schizophrenia . Find changes in the brain that may cause epilepsy . Evaluate the extent of some …
Medical tests
… Doppler Ultrasound On this page: Test Overview Why It Is Done How To Prepare How It Is Done … Plaque in the carotid arteries can reduce blood flow to the brain. This may increase the risk of stroke. Guide treatment … umbilical cord, through the placenta , or in the heart and brain of the fetus. This test can show if the fetus is …
Medical tests
… Magnetic Resonance Angiogram (MRA) On this page: Test Overview Why It Is Done How To Prepare How It Is Done … is often used to look at the blood vessels that go to the brain, kidneys, and legs. Information from an MRA can be … caused by plaque) in the blood vessels leading to the brain. An aneurysm or tear ( dissection ) in the aorta , …
