The increased speed shows how oxygen is used in the brain. FS MRI can be useful in planning the surgical removal of a skull base tumor, spinal cord tumor, or a tumor causing hydrocephalus (fluid buildup on the brain).įunctional MRI (fMRI): fMRI produces MRI images in a faster sequence than traditional MRI. Signals are generated from the magnetic field and fed into a computer, which creates a picture of the brain.įlow-Sensitive MRI (FS MRI): This type of combines functional MRI with images of cerebrospinal fluid (CSF) flow. The patient lies on a table that slides into the scanner, where a magnetic field surrounds the head. Magnetic Resonance Imaging (MRI): The MRI scanner is a tunnel-shaped piece of equipment. Thousands of x-ray readings are then fed into the computer, which brings the information together into a picture of the brain. The CT scanner circles the head so that x-rays penetrate the brain from many directions. The patient lies on a table that slides into a doughnut-shaped opening in a scanning device. Scanning techniques include:Ĭomputed Tomography (CT): This scan combines an x-ray-type device with a computer. The purpose of a scan is to give your doctor a closer look at your brain and to provide information that will assist in your diagnosis.
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