Pet scanning is a very expensive equipment. The most traditional Pet-CT single machine costs about 30 million yuan. As a large-scale equipment, in order to prevent local hospitals from purchasing machines in a rush, they adopt the method of "setting up plans and restricting review and purchase" for equipment of this level. If local hospitals want to have their own Pet scanner, they must first apply to the superior department through fixed channels, and after confirming the amount not exceeding the five-year plan, they can only purchase after approval.

When the pet scanning technology first appeared, a single pet would be used as a Class A medical device of the same level as the proton therapy tumor system for planning and management. After more than ten years of development, the ordinary x-ray positron emission tomography scanner, that is, pet-ct, has been equipped with more than 710 units nationwide and has been moved down to Class B management. The ones currently under Class A are pet/mr (positron emission magnetic resonance imaging system) with only 33 equipment nationwide.

Compared with other imaging methods, the biggest feature of pet scanning is that it can directly show the operation of each organ. After injecting developer containing radioactive 18f-flt, pet-ct scanning can quickly discover abnormal tumor tissues that absorb a large amount of thymine.

This makes pet scanning technology an absolute weapon for human tumor screening. The extremely high sensitivity and less damage compared to biopsy have made it the core examination content of high-end physical examinations.

Unlike traditional rapid CT scans, since the patient needs to inject developer and wait for a while before the developer can enter the tissue, the PET scan is a waste for large emergency centers such as the Fourth Hospital. Cancer patients generally have no acute diseases, and most of them only have severe diseases.

Therefore, Sun Lien asked this question - after all, the current production of pet-ct and pet/mr is mainly monopolized by ge, Philips and Siemens. Japanese companies do not have relevant manufacturers, and this is probably not included in the donation of Takeda Pharmaceutical.

"We can't do it in our hospital." Zhou Ce spread his hands, "If we want to do it, only the affiliated hospitals in Ningyuan can do it. I remember that there is a pet/mr used for trial in Ningyuan Medical College, but that thing... Anyway, it's okay to put a guitar or something in, so you can't put a beagle dog. People will definitely not use it."

The First Affiliated Hospital of Ningyuan Medical College is the most capable comprehensive tertiary hospital in Ningyuan City. It is not surprising that they have equipment. Sun Lien nodded, and after recording a note in his notebook, he moved the focus back to the examination that the Fourth Hospital can do now.

"From the perspective of the outside of the gods, it is not realistic to directly stoke the drainage tube. At least there is no suitable space in other locations of the pathway." Xu Yourong raised the difficulties faced by neurosurgery on this issue. "The drainage tube is generally a ready-made overall equipment, and it is difficult to dig holes on it. And even if it can be opened, there is no suitable place for fistula to be drawn from the outside of the skull to the abdomen - unless you do a fistula from the intracranial reservoir or from the transfer outlet of the intraperitoneum."

Terminal ventricular drainage is a secondary surgery that is not too difficult. But its core composition is the key - the lateral ventricular drainage tube is a relatively sophisticated system. Through this system, doctors can actively choose the intracranial pressure to start drainage by selecting valves and reservoirs.

The liquid reservoir is generally located near the neck near the body surface. Its main significance is to check the working condition of the entire drainage system through pressing, and to take into account part of the function of adjusting the diversion pressure.

However, the reservoir sac does not have the function of puncture. In other words, traditional reservoir sacs do not have this function. In order to facilitate crossing the cerebrovascular barrier and to facilitate extraction of cerebrospinal fluid for testing, some companies have launched reservoir sacs with silicone domes instead of ordinary plastic shells. This newly designed reservoir sacs can withstand repeated punctures of fine needles at multiple small angles, and can even serve as a channel for crossing the cerebrospinal fluid barrier and directly perform painless intrathecal injection.

The problem is... this silicone dome reservoir is not the mainstream or standard design for lateral ventricular drainage reservoirs. To use such reservoirs, components with silicone domes must be used at the beginning when implanting.

"This..." Sun Lien was a little embarrassed when he heard this, "Can you change the liquid storage capsule?"

"It is not safe enough. It may affect the original drainage." Xu Yourong was very cautious about this proposal. "We have not mastered the original drainage plan, and it is risky to replace the reservoir sac rashly. I think it is possible to consider adding a port of injection to the peritoneum that can tolerate repeated punctures."

The nature of the injection port is similar to that of the silicone dome reservoir, but the Fourth Hospital uses it more clinically. As a mainstream development direction for deep intravenous injection of chemotherapy drugs, the injection port itself is not too expensive, and the technology is relatively mature.

"Then you have to ask for a general foreign consultation." After Sun Lien took another note, he looked around and saw that there seemed to be no other things to add, so he decided to leave the meeting, "Let's go, let's get up Yuan Ping'an."

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When Dr. Yuan Ping'an woke up in his camp bed, the clock in the office was already pointing at 8:15.

He didn't set the alarm when he fell asleep on the camp bed at 4 a.m. This morning, Yuan Ping'an was very sure that when his colleagues came to work in the morning, the sound was definitely enough to wake him up. But what he didn't expect was that it was already 8:15, and the entire office was empty - there was no one except himself.

It felt a bit like coming to the class early in the morning to wait for class, but when I waited around, I found that there was no one except me. Yuan Ping'an even began to wonder if he was still dreaming for a few seconds - the work arrangements of the diagnosis center are still different from those of the school. At least there shouldn't be such a situation where "only I remembered it wrongly, but the whole school was on holiday today."

Yuan Ping'an sat up from the bed, packed his camp bed, and poured himself two cups of black coffee. Then he looked out the window to see the situation - fortunately, the Fourth Hospital had not been closed by the entire hospital, and there were already shadows of medical staff and patients walking outside.

That is...what happened to everyone else? Yuan Ping'an's brain began to gradually wake up under the influence of caffeine. He quickly turned on his phone, probably browsing the work group in the side hospital, and ruled out the possibility of a large-scale public health incident.

It was not related to emergency work... He ran out the door suddenly, and while running quickly, he nervously took out his stethoscope - at that moment, he really thought that something big might have happened to Tang Min.

Then, Yuan Ping'an, who ran out of the door, collided with Sun Lien and others. To be precise, he hit Dr. Bruen's belly. Then, Dr. Bruen shook a little and helped Yuan Ping'an lying on the floor with surprise, with a look of surprise, "What's wrong?"

Yuan Ping'an saw his colleagues standing in the corridor talking and laughing, and then he felt relieved when he was in his throat. He rubbed his back, which was so painful that he was thrown, "I thought something was wrong... why didn't you enter the office?"

"I specially leave some time for you to sleep." Sun Lien took out the record book from his body, showed the handwriting at Yuan Ping'an, and then said, "Let's go back and convey the spirit of the meeting to you."
Chapter completed!