Doctor Zhao, help!

Chapter 109 Brain magnetic field response?
"Dr. Zhao, that girl just now didn't really have a brain tumor, right?"

After the old couple took the girl for an MRI, Song Wei suddenly said to Zhao Sheng with some regret.

"Headaches are very normal. They often occur due to poor rest or other reasons. But if you have aphasia, the specificity is very high."

Zhao Sheng thought for a while and said.

Diseases are fair and will not be treated differently based on whether they are good or evil, beautiful or ugly, old or young.

As a clinician, if there is a stereotype that you will not get a certain disease at any age, you will sometimes suffer a big disadvantage because of it.

In other words, this is a kind of thinking inertia. When everyone encounters a new thing, they will first look for a reference in a field they are familiar with to understand. This is an "anchoring" psychology, or a mindset.

In the process of diagnosis or treatment, clinicians gradually form certain fixed ideas or tendencies based on their own understanding and experience of certain diseases or clinical situations, as well as some individual insights from reading, and fail to adopt them objectively. Or study various information given clinically.

For example, when facing a patient with suspected tumors, it is stereotyped that the patient cannot have a tumor because of his age.

There is another problem, that is, willful thinking. Willfulness means only relying on subjective impressions, regardless of objective reality, and looking at objective things one-sidedly and superficially.

The characteristic of the disease is often the atypical clinical manifestations. The same disease can have multiple manifestations, and different diseases can have the same manifestations.

To put it simply, it is necessary to make less subjective judgments, judge the condition more from objective "evidence", respect the results of logical inferences based on facts, and maintain objectivity and rationality.

"It would be a pity if it was really a brain tumor."

Song Wei said with some sigh.

The kindergarten teacher girl just now is so beautiful, has a good temperament, and has a good job. She is what many girls dream of growing up.

"Don't presuppose this diagnosis. Everything depends on the examination results."

After hearing Song Wei's words, Zhao Sheng shook his head slightly and said.

If the students under his command say this, then he must give them a good education.

Without a full understanding, pre-diagnosing patients clinically and pre-establishing a stance in dealing with others can be fatal at critical moments.

"I'm just talking, I'm not a doctor."

Song Wei said.

At this time, the young nurse Yu Ning hurried into the consulting room. As soon as she saw Zhao Sheng, Yu Ning said anxiously: "Teacher Zhao, the patient passed out during the examination in the MRI room!"

"what?!"

Hearing this, Zhao Sheng stood up suddenly, and Song Wei also looked nervous.

"go!"

Zhao Sheng didn't care to say anything else. He and Song Wei hurried out of the consulting room and ran towards the MRI room.

Soon, in less than 5 minutes, Zhao Sheng and Song Wei arrived at the MRI room.

However, at this moment, the girl was being supported by Guo Yan, the MRI doctor, sitting on the bench outside the examination room. Judging from her face, she had just woken up and looked like she had not yet fully woken up.

"Doctor Zhao, you are here."

Seeing Zhao Sheng arriving, Guo Yan breathed a sigh of relief. This kind man was already lying in the examination cabin. He had just started the machine when the girl lying there suddenly tilted her head and fainted. This shocked him. scared.Because before the girl had the examination, he also inquired about the relevant contraindications and medical history in detail, and judging from her appearance, she did not look like someone who would suddenly faint.

The most important thing is that there are very few contraindications to MRI. The most important ones are that there are metal implants in the body, and people with claustrophobia and ear diseases may not be able to tolerate MRI examination. A relatively confined and small space.

"Well, leave it to me."

Zhao Sheng nodded to Guo Yan.

"Doctor, what's wrong with Shanshan? Why did she suddenly faint?"

The old lady stood nearby and asked Zhao Sheng anxiously.

Before, I just had a headache and couldn't speak, but now it's better, I just fainted. How could this not make the old lady anxious?

Zhao Sheng first checked the girl's nervous system-related signs and found that there were no major problems. When the girl looked more awake, Zhao Sheng asked the girl: "How did you feel before you fainted? "

Hearing this, the girl took out her mobile phone and typed two big characters with some effort.

【Headache】

Seeing the girl typing on her mobile phone, which was no longer as clear as when she first came here, and could only type two words, Zhao Sheng knew that this was a sign that her cognitive function was beginning to have problems.

"Dr. Guo, when you fainted, was the machine turned on?"

Zhao Sheng thought for a while and asked the examining doctor Guo Yan.

In the current situation, the possibility of claustrophobia is not high. Zhao Sheng has asked about this medical history before.

"It has been turned on, but it has nothing to do with whether it can be turned on or not. As for nuclear magnetic resonance, the magnetic force of the machine has been there since the installation. It has always been turned on, and the magnetic field has always been there."

Guo Yan thought Zhao Sheng was guessing that the strong magnetic field of the MRI had affected the girl and made her suddenly faint, so he explained.

"Dr. Guo, I remember this MRI machine is 5.0T, right?"

Zhao Sheng nodded and asked Guo Yan again.

The principle of nuclear magnetic resonance is a biomagnetic spin imaging technology based on a combination of resonance and radio frequency pulse technology. Through the principle of the rotation of the atomic nucleus by pulse radiation, the generated pulse signal is frequency converted to form an image.

Domestic NMR is generally from 1.5T to 3.0T. This 5.0T NMR is the result of the latest research.

How strong is the 5.0T magnetic field?
There was news before that a patient in a certain hospital accidentally pushed his wheelchair in while undergoing an MRI. As a result, the wheelchair was attracted by the strong magnetic field, and six or seven big men couldn't pull it off.

The human body naturally has a magnetic field. Although the magnetic field is very weak and difficult to detect, there is no doubt that there will be a reaction between the human body's magnetic field and a strong magnetic field such as 5.0T.

It's just that this reaction is extremely weak. Under normal circumstances, the changes in the human body caused by this reaction cannot be actively detected by humans.

"Even if this MRI machine has 5.0T, it won't be able to trigger a response to the human brain's magnetic field, or even cause coma, right?"

When Zhao Sheng just asked this question, Guo Yan knew what he wanted to express and said in confusion.

He had experienced fainting during MRI before, but it was always due to the sudden onset of some disease, such as transient cerebral ischemia.

To say that the patient fell into a coma due to the reaction of the patient's brain magnetic field and the strong magnetic field of the MRI is pure nonsense, even science fiction.

(End of this chapter)