Everyone filed into the control room and gathered in front of the machine screen.
Just like what is written in science fiction novels, the cool and cool thing about technology is that rows of complex digital chart control images are floating around on the screen, just like mathematical and physical souls are flying.
"The operation interface seems very complicated." Dr. Ou Feng stood at the back and took a glance at it before saying.
If you haven’t learned it before, the first time you see it it will definitely be like reading a book from heaven.
The more intelligent the machine, the more accurate the calculated results must be, and the prerequisite must be more accurate in input data.
How to achieve the accuracy of the input data? Refer to the previous membrane lung verification link. It is best to eliminate interference in the way of obtaining each number, and it is best to have multiple verification methods to verify.
To do this, for example, the first step is to decide whether the patient should shave his or her hair. In fact, the gamma knife does not require shaving, and long hair is best cut short. The obvious advantage of shaving and cutting short hair is that it can eliminate interference and help doctors and machines be more accurate.
position.
Considering that this patient has seven tumors in his brain and is being treated with the latest machines. Anyway, hair loss may occur after radiotherapy. The patient’s appeal must be that it is best to eliminate all the tumors at once, and simply shave his hair.
The most precise positioning is better.
You don’t have to worry about shaving your hair, as your hair will grow back quickly. Clinically, the biggest fear is that it won’t grow back, such as hair loss and baldness, which may not be cured.
The second step is the positioning scan, which includes repeated imaging tests before treatment. Doctors prefer to use magnetic resonance instead of CT because magnetic resonance does not produce metal artifacts compared to CT. The same reason is to obtain accurate data and eliminate interference.
The third step of dosimetry can be called the patient's Gamma Knife treatment plan. We have just introduced the principle of Gamma Knife, such as where on the tumor the flying needle of the flying knife will be shot, and the intensity density distribution of the flying needle.
Pictures, these all require the doctor’s detailed plan, which must be input into the machine in advance. The reference is the last positioning film after the patient is put on the head frame. So after the head frame is put on, the patient needs to enter the magnetic resonance room for the last scan.
position.
A group of doctors stood here, fumbling with the machine's program, comparing it with the patient's previous magnetic resonance imaging, and carefully examining whether the treatment could be done properly, lest the patient be put on a headband and unable to repent.
Dr. Sun said honestly: "I can't guarantee 100% that I can treat her tumors in one go."
It means that the tumor lesions caught by Dr. Song's superhuman eyes are a little too small. In the eyes of the radiotherapy doctor, it is difficult to tell whether these small ant-like dots are tumors.
On the other hand, some small tumors are located close to important parts of the brain, such as the thalamus we talked about before, which is close to the brainstem. Although radiotherapy is not a real scalpel, when killing tumors with a knife, there is a fear of accidentally injuring surrounding or other areas.
Therefore, Gamma Knife surgeons are especially careful about tumors located in difficult and deep locations in the brain, such as neurosurgery.
There are no consequences if you fail to kill the patient. Not only will it damage normal functional areas like neurosurgery, it may even stimulate the surrounding free cancer cells to cause them to grow rapidly and put the cart before the horse.
Teacher Sun's concerns are justified.
In view of the patient's current condition, it may be possible to consider not completing the procedure at one time, but wait until the tumor grows larger next time before undergoing a second procedure or directly adding whole-brain radiotherapy.
