Magnetic resonance imaging (MRI) is also known as nuclear magnetic resonance imaging (MRI), is an imaging test capable of showing the definition of internal organ structures, being important for diagnosing various health problems such as aneurysms, tumors, joint changes, other wounds in the internal organs.
A large machine is used to perform the test, which creates high-definition images of the internal organs by using a magnetic field, causing the body’s molecules to be agitated, captured by the device and transferred there to the computer.
- The scan lasts approximately 15 to 30 minutes and usually does not require any preparation.
- Although it may be necessary to use a contrast product.
- In some cases.
- By injecting the drug intravenously.
- By oral or rectal ingestion.
- Contrast is a substance that has a special coloration that increases the ability to visualize the internal structures of organisms.
MRI is indicated in the following cases
It is necessary to be careful before performing this examination, as there may be no metal material around the magnetic field of the device such as hair hooks, lenses or details of clothing, thus avoiding accidents, so this test is contraindication in people who have prosthetics, pacemakers, bullet remains or metal tweezers in the body , in the case of one of them, an MRI technician and a radiologist must be appointed.
In addition to the good quality of MRI images, another advantage is that ionizing radiation is not used to obtain the results, unlike CT.
Mri will last 15 to 30 minutes, but can reach a maximum of 2 hours, depending on the area to be examined. For your realization you have to stay inside the device that emits the magnetic field, this procedure does not cause pain, the only thing that is very important is that it does not move during this period, as any movement could change the quality of the exam.
In people who cannot be inside the device such as children, claustrophobic people, people with dementia, Alzheimer’s or schizophrenia, a sedation test may be necessary to induce the subject, otherwise the test may not be effective.
In addition, in some cases, it may be necessary to apply a contrast product such as Galio, which is a way to increase the definition of images, mainly to visualize blood vessels or organisms.
Mri types depending on the affected region and the most common are
MRI is therefore an excellent test to look at the white parts of the body, however, it is recommended to observe lesions in rigid and human regions, in which case X-rays or CT scans are indicated.