After lunch, back to the dormitory and lying on the bed, Yang Xi finally remembered that the system's task this week had not been completed.

Thinking of the content of this week's mission, Yang Xi was quite angry, he had to force a surgeon to learn the treatment principles of linear accelerator and gamma knife, isn't this equivalent to letting a sniper practice slashing people with a kitchen knife!

Linear accelerator is an indispensable cancer treatment tool for radiotherapy, and Gamma Knife is an upstart in radiotherapy equipment, which has gradually been recognized by major names in the field of radiotherapy in the past decade. However, in Yang Xi's cognition, in the treatment of cancer, radiotherapy is only a supplement to surgery.

For example, radiation therapy is given after surgery to eliminate tiny lesions that are not visible to the naked eye. For another example, the difficulty of surgery is too great to remove all the tumors, so radiotherapy is used for palliative treatment to delay the progression of the disease.

Yang Xi's perception is not an isolated case, and in surgical films, most of them are like this. Since the hospital has a radiotherapy department, and there is no shortage of doctors specializing in radiotherapy, what is the point of letting an excellent surgeon learn to master the treatment principles of linear accelerator and gamma knife?

With emotion, Yang Xi summoned the system interface and checked the data one by one, he thought, if he didn't complete this week's task and could survive a week, then he would simply give up this week's task. Otherwise, you have to go to the hospital library to borrow books or buy books online, which is too troublesome.

However, when Yang Xi flipped through the pages of the system mall, he couldn't help but hesitate for a moment. Under the two rows of surgical skill cards, in the third row, there are actually two books, "General Theory of Radiotherapy" and "Linear Accelerator, Gamma Knife Therapy Principles and Clinical Applications".

The list price is only 9.9 yuan.

Two books plus one piece is only 19 yuan and 8 cents, buy it, read it casually, and barely complete the system's task this week, which is also an acceptable choice.

Click to buy, pay the money, and two e-books are presented in front of Yang Xi.

The theoretical part is really boring, and I directly looked at the clinical application of the second book, but I didn't expect that after only reading the first case, Yang Xi was deeply immersed and couldn't extricate himself.

Nasopharyngeal carcinoma, the golden case of linear accelerator, has a treatment effect far beyond surgical resection.

How is this possible!?

Yang Xi couldn't believe it, and even more unwilling to accept it.

But in the book, there is not only a single case treatment statement, but also a large number of literatures for each disease, each of which was published in an authoritative medical journal, which made Yang Xi have to believe it.

Looking at the clinical application of Gamma Knife, there is also its golden case, central lung cancer.

Yang Xi immediately thought of the surgical treatment of central lung cancer, which is different from peripheral lung cancer, which only needs to be resected locally, and when the thoracoscopic technology is becoming more and more mature, there is no need for thoracotomy surgery, which is not too traumatic for the patient, and the postoperative recovery is very simple.

But central lung cancer is not so simple.

Unless it is detected early, thoracotomy is necessary, and because the cancer often invades the hilum region, a lateral pneumonectomy is necessary if the hilar structure cannot be preserved.

For the patient, the trauma of the operation is greater, not to mention anything else, just the compensatory recovery of lung function after surgery is an extremely long process.

But what is the prognosis for surgical treatment?

The median survival of surgery plus chemotherapy is not as good as that of Gamma Knife plus chemotherapy.

Moreover, the difference is not half a star.

It's going to be bloody!

This is simply an insult to the surgical genius of the young master.

Xiao Ye must study them carefully, find out their academic shortcomings, and defeat their arrogance.

Two books, five or six hundred thousand words, are not like that, you can read ten lines at a glance, and a rough storyline is enough. Moreover, the subject of radiotherapy was only an investigation subject when Yang Xi was in college, and he had studied and taken the exam, and he was thrown aside, and now he has picked it up again, firstly, all the previous memories have been forgotten, and secondly, the theoretical depth has increased a lot. For Yang Xi, it can be described as a completely new field, and without the help of super memory cards, it is not easy to learn.

But people with twisted personalities just have a twisted strength, since they said that they should study it carefully, then, no matter how difficult it is, no matter how boring, then Yang Xi will not give up easily.

An hour passed, and Yang Xi seemed to see some light from the book.

Two hours passed, and Yang Xi's chaotic thinking seemed to be somewhat organized.

Three hours passed......

......

It's so dark outside the window, and my stomach is screaming.

What the hell is it?

Waving his hand to hide the page in front of him, Yang Xi found his mobile phone, looked at the time, and couldn't help but gasp.

22:07.

What time will it be when you're in bed after eating? It seems like it's less than one o'clock in the afternoon.

More than 9 hours have passed, and I have barely read these two books, although the system does not give hints to complete this week's tasks, but Yang Xi feels quite steady.

It is often said that when a person's cognition is subverted and a new cognitive structure needs to be rebuilt, the process is painful. But at this moment, Yang Xi, after a rough understanding of the principles of radiotherapy and the treatment principles and clinical application of the two radiotherapy heavy devices, does have a process of cognitive reconstruction, but this process does not make Yang Xi feel painful, on the contrary, he feels quite comfortable.

In the field of tumor treatment, it is not a panacea to say that surgery is not a panacea, it is not a panacea, it is actually very important to say that radiotherapy is actually very important, then it is important, as long as it is good for the patient, the surgery that should not be prescribed is not opened, it should be sent for radiotherapy, then it is sent for radiotherapy, what is there to be depressed?

Go out and find something to eat, and when you're full, come back and continue your research on radiation therapy!

At this moment, Yang Xi didn't expect any rewards for completing this week's tasks, he was really attracted by radiotherapy.

Put on his coat, left the dormitory, and came to the gate of the hospital, and inadvertently noticed a lewd little old man standing on the side of the road not far away.

"Yo, isn't this Lao Zhangtou? I'm Yang Xi, a general surgeon, don't you remember?"

The old man squinted at Yang Xi, and snorted coldly: "I didn't have Alzheimer's disease, why can't I remember you?"

Yang Xi's cheek is really not thin, and he grabbed Lao Zhangtou's shoulders like a familiar acquaintance, and seduced: "Are you busy, if you are not busy, let's have a drink?"

Lao Zhangtou smiled and said, "Just you, pour three glasses, and still want to drink with me?"

Yang Xi said: "The distribution principle of communism is to do what each can and distribute according to his needs.

Lao Zhangtou snorted coldly again and said, "You drink water, let Lao Zhangtou drink, don't you?"

Yang Xi said solemnly: "Wrong, it's you who drink water, and I, Yang Xi, drink wine." ”

The old man was stunned and said, "Then it's a fart!"

Yang Xi thought about it and replied: "Since you are against it, then change it, you drink, I drink water." ”