After hearing this, Dr. Hu also raised his concerns: "The blood vessels are only so big, wouldn't they explode if blood is injected into them?"
Small blood vessels are very easy to burst. This is also the reason why ophthalmologists dare not perform interventional surgery on her. The emboli fall into the small blood vessels, and excessive pressure can easily burst the blood vessels. Don't talk about thrombolysis at that time, just do it directly
Blinded my eyes.
"So we need to pay attention to the hemodynamic possibilities provided by the peripheral collateral circulation to this part of the arterial network, as well as the anatomical position of the blood vessels." Xie Wanying said, processing the blood vessel direction map that Senior Brother Cao drew for the family, "
The ophthalmic artery comes from here, this is the cavernous sinus of the internal carotid artery. After it comes out from here, it passes through the dural sheath and then enters the skull. The ophthalmic artery is also the first branch of the internal carotid artery. It is on the lower and outer side of the optic nerve.
When it goes inward and crosses the optic nerve, it emits the central retinal artery cra, which is where the doctor tentatively determined that Mr. Hu's disease developed."
Mr. Liu came closer and saw that the pen in her hand was like that of a painter, no, that of an engineering designer. There was no need to modify the strokes after one stroke, which can be regarded as the precision work of engineering.
He believed that Cao Yong could draw like this. He was a famous neurosurgery expert. As far as he knew, Dr. Xie was just a medical student. Mr. Liu couldn't take his eyes away. The more he watched her draw, the less he felt that she was drawing
How different is it from Cao Yong?
Cao Yong may be a famous artist, but he only sketched a few sketches of his family members to lay the framework. Xie Wanying's painting is like adding various details and coloring to the original sketch.
I can’t say which one is better, the framework or the details behind it. In fact, both have technical requirements.
The latter is painted in detail and can be distinguished clearly, which is amazing.
"The retina actually has two blood vessel networks. One part supplies the inner part of the retina called the retinal artery network, and the part that supplies the outer retinal network is the choroidal vascular network that supplies the outer part of the retina. The central retinal artery is divided into three segments. The first is the intraorbital segment, starting from the starting point
It extends to pass through the dural sheath around the optic nerve. The second intradural segment is between the optic nerve and the dural sheath. The intraneural segment is within the optic nerve. The central retinal artery and the branches of the retinal artery connect here, and the optic nerve
**." After drawing to the key point, Xie Wanying took out the red pen and drew circles.
Mr. Liu was fascinated by it and explained that as long as the anatomical drawings are good-looking, they are no worse than those drawn by the Academy of Fine Arts and are still attractive.
"In some people, their retinas are supplied by the ciliary body retinal artery, which is a branch of the posterior ciliary body artery. Therefore, Dr. Hu needs to thoroughly examine these blood vessels to understand the cause of the problem in order to understand the specific problem.
At the head of the optic nerve, the diameter of the central retinal artery is about 160 um. There are several stenoses in this artery, one is where it passes through the cribriform plate, and the other is where the proximal end passes through the dura mater and enters the optic nerve. These narrow places
This may be where the emboli we are looking for are located, because emboli are most likely to become lodged in these places."
"After finding the embolus, how do you say it will flow out?" Mr. Liu followed Xie Wanying's words without hesitation.
Dr. Hu could tell that her husband understood and listened with gusto, and couldn't help but feel happy. Having said that, this classmate Xie really explained the anatomy diagram very well. Now it's just time to see how classmate Xie explains the key issues and the key solution strategies.
