Can I bring a gold bracelet for MRI?
Never wear a pure gold bracelet for MRI.
Not only pure gold bracelets, but also other gold and silver jewelry or some metal objects worn must be completely removed before MRI examination can be carried out. Moreover, before the examination, the doctor will ask the patient in detail whether there are metal implants, such as pacemakers. On the one hand, this is to ensure the safety of patients and the quality of images.
On the other hand, it is also to avoid adverse effects on the machine. Metal objects will not only interfere with the uniformity and stability of the magnetic field, but also cause various artifacts in the inspection process, which will affect the diagnosis results. Moreover, some metal objects are easily adsorbed on the machine during inspection, which will cause certain damage to the machine.
What are the precautions before doing MRI vibration?
Magnetic resonance imaging (MRI) is a routine imaging examination method, which is mostly used for the diagnosis of diseases of parenchymal organs, heart and blood vessels, and has little influence on human health. However, some problems should be paid attention to in magnetic resonance imaging to prevent the examination results or the subjects from being affected.
1. Contraindications: including those who have installed pacemakers, those who have or are suspected of having metallic foreign bodies in their eyeballs, those who have ear diseases, those who have silver clip ligation of aneurysms, those who have metallic foreign bodies in their bodies, critically ill patients who are in danger of life, claustrophobic patients and pregnant women who are less than 3 months pregnant. Because metal is attracted by strong magnetic field, it will move, which may be life-threatening, but patients with eye and ear diseases, claustrophobia and pregnant women may not be able to tolerate it.
2. Take out metal foreign objects: such as keys, magnetic cards, watches, dentures, contraceptive rings, belts with iron buckles, monitoring instruments, rescue equipment and other metal objects, which will have a certain impact on magnetic resonance vibration examination, affect imaging, and are not conducive to lesion display, and may even destroy the machine;
3. Avoid makeup and manicure: Some cosmetics and nail polishes contain metal components. In order to avoid abnormal inspection results, makeup and manicure are generally not recommended;
4. Dismantle medical equipment: Dismantle necessary medical equipment under the guidance of a doctor. It should be noted that metal objects such as wheelchairs and sickbeds cannot be brought into the examination room to avoid serious accidents;
5. Others: If you are checking the abdomen, you need to have an MRI on an empty stomach. Generally, it is necessary to stay on an empty stomach for 4-6 hours to ensure the accuracy of the inspection results; There may be a lot of noise when doing MRI. In order to prevent hearing loss, you can wear earplugs to reduce the influence of noise and protect your ears.
In addition, magnetic resonance vibration examination will generally not cause harm to people without contraindications, so there is no need to be nervous and worried, and try to keep your mood comfortable and gentle.
Does magnetic resonance vibration affect the body?
Doing nuclear magnetic vibration has no harm to human body, no ionizing radiation and no radioactive harm to human body. Magnetic resonance imaging (MRI) is a relatively new imaging diagnostic technique currently used in clinic, which can provide information that traditional X-ray and CT cannot provide. It is one of the most important examination methods to diagnose intracranial and spinal cord diseases, and has been widely used in China.
Compared with CT, MRI vibration can provide multi-directional and multi-level anatomical information, with high image definition, no ionizing radiation and no obvious damage to human body. Can clearly display coronal, sagittal and transverse images, without skull artifacts and contrast agents.