Chapter 2859 [2859] Life lies in movent
Before the operation, the family mbers did not allow the patient to have an MRI scan, and the CT scan was unclear.
said that it is not impossible to asure the flow rate. After asuring the flow rate, compare the similar cases in the past, in fact, the reference value is greater. Otherwise, the doctor would not suggest that a magnetic resonance examination to asure the flow rate can be done before the operation.
MRI is a precision instrunt scanning and a computer calculating.
How do you asure it visually?
Wei Shangquan observed the movent of substances in the cerebrospinal fluid on the screen, and said, "You can calculate the flow rate by observing the movent of the little dots."
It cannot be said that everything Wei said is wrong, it is a basic water flow calculation problem.
It’s just that if things are so simple, it’s hard to figure out why he, Senior Brother Huang, is in a hurry to find excuses.
"What's the problem?" Wei Shangquan asked.
Sun Yubo scratched his head and stared at the fellow who was selling off.
Shi Xu, who was standing beside him, said, "Can you move?"
Isn't the cerebrospinal fluid flowing all the ti?
"It should be moving." Tan Kelin said.
Hearing what Teacher Tan said, Sun Yubo didn't dare to say that it was nonsense that he could not move.
Isn't the cerebrospinal fluid moving?
Doctors with high seniority, not to ntion major surgeons, even if they are not in this specialty, they can also learn by analogy to so things in other departnts. Shi Xuxian admitted: "The knowledge of neurosurgery has already been handed over to the teacher. Doctor Cao, why don't you tell , is it a move?"
In dicine, separate departnts are generally separated from each other. Only when you are a dical student, you can earnestly learn comprehensive knowledge. After working in a departnt for a long ti after graduation, it is common to forget about other subjects. Internships are not to be able to learn comprehensive specialist knowledge of each departnt, it depends on the luck of each dical student.
Cao Yong said: "The brain is as active as any other organ in the human body."
People are alive, and life lies in movent. Many organs and tissues in the body are constantly moving, such as the peristalsis of the intestines and the contraction of the gallbladder.
Heart is beating non-stop. Clinically, I like to say that the heart, the brain, and the brain seem to be integrated, which can be reflected here. When the heart contracts, the volu of the brain tissue increases and the brain parenchyma moves in the direction of the cranial plate of the ventricle, allowing the cerebrospinal fluid to flow out of the ventricle. When the heart is diastolic, the volu of the brain tissue shrinks and the brain parenchyma moves in the opposite direction, and the cerebrospinal fluid in the ventricle flows back up.
Those at the scene who returned their neurosurgery knowledge to their teachers squinted their eyes after listening to Cao Yong's words: the brain can really move, and it's not like everyone imagines that the computer doesn't move and only the nerves inside do things. It's like a heart shrinking.
"Don't you know?" Cao Yong asked them back.
Puwai Er and the others were collectively silent.
In the opinion of Cao Yong, this is really too basic knowledge, and it should not be forgotten completely.
Several other dical students, including Student Wei, even turned pale with fright. They were definitely stuck in their brains and didn't think of this knowledge point quickly.
Got it? Huang Zhilei's eyes glanced at these guys who dared to look down on him.
This speed asurent shows that it is not simply a water flow asurent, but the peak flow velocity during systole and diastole respectively. Because systole is a process, diastole is also a process. The flow of cerebrospinal fluid is also a process, it cannot be a uniform flow rate, only the peak value can be asured.
Heart beats more than once a second. The systolic and diastolic periods are very short, and the flow rate of cerebrospinal fluid can be said to be changing rapidly.
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