The principle is very simple. If a certain area of the brain is active, its brain's oxygen consumption will increase.
The reason why fMRI is rarely heard in clinical practice is that it is mainly used in psychological research.
We have said that in psychological research, if it is a materialistic theory, it must be based on anatomy. Therefore, psychologists use this examination as an anatomical basis for observing human brain activity.
Is it useful? fmri has flaws. The flaw is that its spatial resolution is low. In order to improve its resolution, it is nothing more than using noise reduction algorithms and other methods. You can compare these processing methods to post-editing of recorded images.
later stage
The modification is naturally greatly affected by the operator's human factors, which may distort the original data and lead to biased results.
The experimental data is distorted, and medical ethics issues arise. Because some psychological research results will be applied to difficult social issues, such as the polygraph that became popular for a period of time. In fact, some experiments used this fMRI. Such polygraph
If used to judge people in court
Whether he is guilty or not, whether he is guilty of murder or not, do you think this is a big or terrible issue?
Moreover, some lawyers will use fmri to exonerate murderers, saying that the criminal's abnormal electroencephalogram indicates mental illness, which can help the criminal escape the death penalty. What we are talking about now is a vegetative state, which is sleep with abnormal brain activity. According to the principle of fmri, it
It can help doctors observe the activity of the patient's brain, and help doctors determine the patient's prognosis and whether
More radical treatments can be taken.
It just so happens that for vegetative patients, the most effective method is not to look at the treatment method first, but to determine whether the patient has a chance to be stimulated and revived.
Here I want to talk about the new classification of vegetative state that is being heatedly discussed in the medical circle in this era and is about to be released. In the past, what was a vegetative state? The doctor only needed to give instructions, and the patient who could not follow the doctor's instructions could be called a vegetative state. Later, it was discovered that among these patients,
There is a type that can open its eyes. The eyeballs can
Respond to the doctor's instructions. Such patients are judged to have residual consciousness after fMRI evaluation. Doctors will give these patients a more accurate definition as minimally conscious patients, which are different from vegetative patients.
After the new classification is finalized, it will be found that nearly half of the former vegetative patients are not vegetative, but patients in a minimally conscious state. This shows that this new classification greatly affects clinical judgment. When discussing these latest academic topics, the big guys will inevitably be very excited.
Dr. Charlie was in a high mood and said: Okay, okay, you, a medical student, actually understand this cutting-edge neurosurgery topic in the world. It shows.
I am very interested and knowledgeable about neurosurgery.
Xie Wanying could feel her back being patted by Senior Brother Cao's gentle hand. It was obvious that Senior Brother Cao was very satisfied with her performance.
Dr. Charlie said that she went to the First Affiliated Hospital of Zhongshan Medical College and participated in this patient's bedside consultation, and the suggestions she gave included the fMRI she mentioned.
He is worthy of being one of the top neurosurgery experts in the world, and he has a thorough understanding of cutting-edge medical methods.
There is no conclusion on whether the other hospital will adopt the academic opinions he said. The controversy is quite big. Who made the new classification of vegetative people around the world not yet released? From here you will find that the establishment of standards for an industry can directly affect clinical work and
