Why isn't an MRI scan recommended? Doctors reveal the answer, the sooner the better
If you are unwell, there are many items when you go to the hospital for examination. The doctor will also choose the appropriate examination method according to the symptoms and conditions of the patient.
As a common imaging examination method, MRI can clearly see the internal environment of the human body, which is clearer than other examinations.
But there are also many people who say that doing MRI examinations will cause serious radiation effects on the human body. Is this statement correct? And sometimes doctors don't recommend MRI scans, why?
What is the principle of MRI?
As far as the current medical level is concerned, magnetic resonance is a widely used examination. There are two factors in the hydrogen principle: the first is generated by magnetic fields and magnetic resonance instruments, and the second is the nitrogen nuclei in the cells of human tissues and organs. .
The principle is simply the principle that the hydrogen nuclei of the tissue cells in the human body of the examinee resonate with the nuclear magnetic resonance under the action of a strong magnetic field, and the trajectory in the body is recorded by the magnetic resonance instrument to form an image for clinical judgment.
Why isn't an MRI scan recommended? Doctors reveal the answer, the sooner the better
1. High cost
In fact, most people's cognition of magnetic resonance is only half-understood, and they do not fully understand magnetic resonance. They only know that it is a relatively high medical technology that a strong magnetic field is needed to check the body.
At present, liquid helium is commonly used in magnetic resonance. Generally, this substance is relatively expensive, and it needs to be added every 3 to 4 months. Calculated at the price of 200 yuan per liter, it costs about 10,000 yuan each time. .
Then add labor, space, electricity, cost, the price can be as high as millions or even tens of millions. Once a fault occurs and needs to be repaired, it also requires high repair and maintenance costs, so magnetic resonance is generally not used to do it. examine.
The price itself is already relatively high, and the cost of normal operation will be higher, which shows that the cost of magnetic resonance examination is also relatively expensive, and the cost of examination of different parts is also different. If you do not follow the doctor's arrangement, blindly choose resonance examination. , will only increase their financial burden .
2. Different instruments for different conditions
The main principle of magnetic resonance is that under a strong magnetic field, hydrogen atoms in the patient's body are excited to perform resonance reactions, and then converted into images through instrument scanning and search .
If there is insufficient hydrogen atoms in the human body or there is no such lesion at all, this examination is not necessary, and even the synthetic images are not clear, so doctors will arrange the examination items reasonably according to the patient's condition.
If it is a lung examination, it is mostly through CT examination or X-ray examination . Generally, the price of these two examination items is relatively cheap, and the patient can accept it, and can clearly judge the lung lesions.
In addition, some patients have sensitive parts of the disease, or are closed, and the method of magnetic resonance examination is not impartial, and it is also not suitable for this examination.
3. claustrophobia
In response to this change, MRI is not required, because such patients will have hormone tension and fear when entering a closed environment, accelerate the heartbeat, and may suffer sudden death in severe cases.
However, this examination needs to be in a closed environment. During the examination, the instrument will also emit different degrees of sound. For patients with claustrophobia, there will be a strong sense of discomfort, so doctors will not recommend this examination.
In addition, if the patient is young or emotionally unstable, such as people with depression, it is not recommended to do this examination, so doctors generally choose the examination method suitable for the patient according to the patient's physique and different conditions.