2964 Chapter 2964 Make the Best Use of Everything

"If you don't have a secondary CT, is it useful to start the navigation?" Huang Zhilei had to say that her idea was a bit strange, and directly suggested to her, "You can completely do without the navigation. If you think about it, your brain should be able to figure it out."

Xie Wanying: ...What does Senior Brother Huang think of me?

Little junior sister's brain is a super three-dimensional computer.

"I want to use navigation." Xie Wanying begged her senior brother, not wanting to make herself appear to be a particularly weird person. Besides, there are advanced medical technologies, so why not use them to assist yourself.

Senior Brother Huang is as happy as Senior Brother Cao: "I'll turn it on for you."

In fact, the 3D navigation stickers mentioned earlier to locate the markers use the point registration method. Sometimes the positioning marker is afraid of shifting and I don’t know it. I will directly scan the patient’s face with a laser scanner in the operating room to obtain face matching, which is called face-to-face matching. But this method has limitations, and it is not very accurate for matching the back of the brain.

According to the above principle, Xie Wanying uses her own eyes to scan and position the patient's head without using any positioning markers or scanners, and then benchmarks it on the navigation software.

The biggest advantage of the navigation software for her is that the three-dimensional images can be displayed on the screen more intuitively, which is convenient for her to discuss with other doctors. After all, it would take too much time and effort for her to speak and draw the images in her mind.

"Here, here." Xie Wanying took a cotton swab to draw the opening position on the patient's head for the senior brother.

The anesthesiologists leaned their heads together and watched strangely.

Lu Yanhan, who had never seen a neurosurgery operation, asked in surprise, "Is this going to be an operation on the eyebrows?"

Eyebrow opening, which sounds like eyebrow surgery at first glance, is actually a very typical surgical approach in neurosurgery called transbrow keyhole approach. Make a small incision on the eyebrows, as Mr. Xie said, open a small bone window the size of a one-yuan coin. After entering from this position, the doctor can touch the anterior cranial fossa and the suprasellar region of the brain. Operation.

There are many surgical approaches in neurosurgery. For example, in the case of drilling and drainage in the case of hydrocephalus, there are only three conventional approaches, and there are countless other irregular approaches. Therefore, navigation is required to choose the best approach map. .

There are two options for the surgical approach proposed by Mr. Xie, one is to enter through the eyebrow opening, and the other is to enter through the hairline point. The surgical approach from the hairline is the pterional approach.

The pterion is also the apex of the sphenoid, located in the front of the temporal fossa of the skull, where the frontal, parietal, temporal, and greater wings of the sphenoid meet.

Where the bones meet, it means that there is a suture here, which means that the bone here is relatively thin, and it is easy to drill holes. It is also one of the classic neurosurgery approaches, targeting the saddle area, anterior cranial fossa, and middle cranial Surgery is performed on diseased areas such as fossa and upper slopes.

From the perspective of the human head, the opening positions of the two approaches are not too far apart, and the targeted areas partially overlap.

For doctors, what are the elements to make the final choice.

It must be said that the principle of surgical approach selection in neurosurgery is to avoid excessive stretching of the brain tissue, reduce damage to the brain tissue, and at the same time, expose the lesion to the greatest possible extent.

For the current case, which path is the easiest to find the worm and has the least damage to the brain tissue is the best.