Magnetic resonance imaging (MRI)
MRI(Magnetic resonance imaging)
MRI is a instrument commonly used in a medical diagnostics. MRI stands for magnetic resonance imaging, it is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. A MRI can give different information about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan. It measures the water content of tissues within the body, which is processed by the computer, creating a black and white image. A MRI can produce a highly detailed image, showing even the smallest abnormality. A MRI uses strong magnetic fields and radio frequency waves to create images of the human body. A dye containing gadolinium, has magnetic properties that are used during the procedure. It will then circulate through the blood stream and absorbed into certain tissues, that stand out on the scan. The wavelength is somewhere between 4.6m and 3.5m. MRI is the best type of imaging to diagnose most types of brain tumors. They use magnetic fields and radio waves, rather than X-rays, and computers to create detailed pictures of the brain. MRIs show “slices” of the brain that can be used to create a three-dimensional picture of a tumor. The contrast dye is used to enhance the images. When having an MRI done, the area of the body being studied is placed inside a special machine that contains the strong magnet.The standard MRI machine looks like a long cylinder with a narrow tube in the center. You lay on a moveable bed and your entire body slides inside the tube. The exam takes 20 to 50 minutes. It is crucial that you relax and lie very still. Any slight movement during this time will blur the picture. After the test is complete, you are free to go. You should drink plenty of fluids to help your kidneys remove the contrast dye from your body.
Sources: www.mayfieldclinic.com, www.hopkinsmedicine.org
MRI is a instrument commonly used in a medical diagnostics. MRI stands for magnetic resonance imaging, it is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. A MRI can give different information about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan. It measures the water content of tissues within the body, which is processed by the computer, creating a black and white image. A MRI can produce a highly detailed image, showing even the smallest abnormality. A MRI uses strong magnetic fields and radio frequency waves to create images of the human body. A dye containing gadolinium, has magnetic properties that are used during the procedure. It will then circulate through the blood stream and absorbed into certain tissues, that stand out on the scan. The wavelength is somewhere between 4.6m and 3.5m. MRI is the best type of imaging to diagnose most types of brain tumors. They use magnetic fields and radio waves, rather than X-rays, and computers to create detailed pictures of the brain. MRIs show “slices” of the brain that can be used to create a three-dimensional picture of a tumor. The contrast dye is used to enhance the images. When having an MRI done, the area of the body being studied is placed inside a special machine that contains the strong magnet.The standard MRI machine looks like a long cylinder with a narrow tube in the center. You lay on a moveable bed and your entire body slides inside the tube. The exam takes 20 to 50 minutes. It is crucial that you relax and lie very still. Any slight movement during this time will blur the picture. After the test is complete, you are free to go. You should drink plenty of fluids to help your kidneys remove the contrast dye from your body.
Sources: www.mayfieldclinic.com, www.hopkinsmedicine.org