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                    "_value": "<h3>What is an MRI scan?</h3>\n\n<p>Magnetic resonance imaging (MRI) is an <a href=\"https://medlineplus.gov/diagnosticimaging.html?utm_source=mplusconnect\">imaging test</a> that is usually painless and uses magnets, radio waves, and a computer to create detailed pictures of the inside of your body. MRI scans show organs and soft tissues clearly and can help tell healthy from unhealthy tissue in many cases.</p>\n\n<h3>Who needs an MRI scan?</h3>\n<p>MRI scans are often used to diagnose conditions that affect soft tissues and to monitor treatment.</p>\n\n<p>MRI may be used to look at:</p><ul>\n<li>The brain, spinal cord, and nerves</li>\n<li>Muscles, ligaments, and tendons</li>\n<li>Joints, such as the knee or shoulder</li></ul>\n\n<p>MRI does not use <a href=\"https://medlineplus.gov/xrays.html?utm_source=mplusconnect\">x-rays</a> or other <a href=\"https://medlineplus.gov/radiationexposure.html?utm_source=mplusconnect\">radiation</a>. Because of this, it may be used when repeat imaging is needed.</p>  \n\n<h3>How do you prepare for an MRI scan?</h3>\n<p>MRI machines use powerful magnets. Metal objects or implants can interfere with the scan and may be unsafe.</p>\n\n<p>Before your MRI, you will need to remove items such as:</p><ul>\n<li>Jewelry and watches</li>\n<li>Hairpins</li>\n<li><a href=\"https://medlineplus.gov/hearingaids.html?utm_source=mplusconnect\">Hearing aids</a></li></ul>\n\n<p>Before your MRI, tell your health care provider if you:</p><ul>\n<li>Are pregnant</li>\n<li>Are <a href=\"https://medlineplus.gov/breastfeeding.html?utm_source=mplusconnect\">breastfeeding</a>, especially if you may receive contrast material (a substance that helps some parts of your body show up more clearly on the images)</li>\n<li>Feel anxious in enclosed spaces (<a href=\"https://medlineplus.gov/phobias.html?utm_source=mplusconnect\">claustrophobic</a>)</li>\n<li>Have <a href=\"https://medlineplus.gov/kidneydiseases.html?utm_source=mplusconnect\">kidney problems</a></li>\n<li>Have metal in your body, such as bullets, shrapnel, or other metal fragments</li>\n<li>Have metal or electronic devices in your body, such as a <a href=\"https://medlineplus.gov/pacemakersandimplantabledefibrillators.html?utm_source=mplusconnect\">pacemaker</a>, artificial joint, or other implants</li>\n<li>Have <a href=\"https://medlineplus.gov/piercingandtattoos.html?utm_source=mplusconnect\">tattoos or permanent makeup</a>, since some darker inks may contain metal</li></ul>\n\n<h3>How is an MRI scan done?</h3>\n<p>You will usually change into a hospital gown. Sometimes before the test, you may receive contrast, which is usually given through a vein (intravenously or IV).</p>\n\n<p>During the scan, you lie on a table that slides inside a large, tunnel-like machine. Some facilities use an open MRI machine, which is less enclosed. The machine makes loud noises as it takes pictures. You may be given earplugs or headphones.</p>\n\n<p>The scan can take some time, depending on the part of your body being examined. You will need to stay very still during the scan.</p> \n\n<h3>What should I expect after an MRI scan?</h3>\n<p>After most MRI scans, you can return to normal activities right away. If you were given medicine to help you relax, someone will need to take you home.</p> \n\n<p>A specialist called a radiologist reviews the images and shares them with your provider.</p>"
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