医学英语阅读——Magnetic Resonance Imaging (MRI)
2025-08-10 10:21:07 etogether.net 网络 次
MRI is safer than X-rays because it does not use radiation. lt provides more information than Computed Tomography about some head, neck and spinal disorders because the images are more detailed and have more contrast, meaning the differences between dark and light areas are stronger. Unlike CT, the images can be taken on any plane -any surface of the body seen from an angle. It is now used for imaging-taking images of -the brain and heart, and in oncology.
Contraindications, cases in which it should not be used, include patients with metallic foreign bodies in the orbits, and patients with pacemakers - electronic devices surgically implanted to regulate heartbeat. MRI is also not approved during the first trimester of pregnancy.
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