It's not that hard to open a hospital in another world, right?

Chapter 742 Let's do magic CT... What, do you need to change the algorithm? (Push up the 33D explosion update [-])

To do CT for people, Gretel did it once.

That was still on the Hermon Peninsula, near the great wilderness.The savage nicknamed the old hunchback swallowed a spoon. In order to determine whether the handle of the spoon was inserted into a blood vessel, Gretel had no choice but to perform a CT scan with very low accuracy.

That time, those who heard it were weeping, and those who saw it were sad.The old hunchback asked him to tie him to the chair, not to move, and slowly rotate it on the floating disc.Turning an angle, Gretel manually recorded a batch of data, turned another angle, and recorded another batch of data...

After the data recording is completed, it has been a full two hours.Poor old hunchback, his bladder was about to explode, and Gretel had to do it manually for him.

It is obviously impossible to keep mice still for two hours in a natural state.Gretel dragged a chair, sat down at the center of the mage tower, and faced the mouse:

How can it be stopped?tied up?Application of 2% pentobarbital sodium solution intravenously?Or intraperitoneal injection of 10% chloral hydrate solution?

Don't think about it, there are no anesthetics, nothing of any kind...

Gretel was the first to try, tying the mouse with vines and hanging it in the air.Even without turning on [Detect Magic], the naked eye could see the mouse struggling and twisting desperately among the vines, its four little claws scratching non-stop.

This definitely won't work.Don't be quiet and stand up, let alone CT, even X-rays can't show it.

Hmm...how about imprisoning the mice?
Gretel tentatively threw a [Tranquilization].Very well, the mouse did not move.Then, throw [Detect Magic]——

perfect!

The shadow of the skeleton can be seen clearly under the X-ray, ah no, under the illumination of [Detect Magic]!

He asked the invisible servant to bring a shelf, and hung the mouse on the shelf with its tail up and its head down, straight down.Put it in the center of the floating disc and issue the command:
"MOSS, let the invisible servant rotate this floating disk as slowly as possible! Well, once every second, once every six minutes, keep rotating evenly!"

"No problem, boss!"

Tallinn replied flatly.Of course, this is the factory setting of MOSS. Although he has learned to tell jokes, talk back, and even hurt him, he has never learned to fluctuate his tone.Gretel didn't care either, and took out the golden treasure box:
"MOSS, connect this box to the center of the mage tower."

"Okay, boss."

"Save all the images I sensed. Well, how often can you save them? Is 0.1 seconds okay? The image accuracy is large enough, can a 0.5mm target be seen clearly?"

"No problem, boss."

Taring's voice remained unchanged.Gretel took a deep breath, fixed the oak stick on the opposite side, and activated [Detection Magic]:
"Three, two, one, let's go!"

In the meditation world, the image similar to the X-ray plain film is brightly lit up, and then transferred through the golden treasure box, it is input into the center of the mage tower like flowing water, and is silently stored.

Gretel sighed secretly.Once upon a time, when he just came to this world, he could only try to take an X-ray plain film; after so many years, he has accumulated enough resources, and he can already try to do a CT:
There is no golden treasure box to turn the meditative image into a realistic image, and he will be so tired that he vomits blood if he draws purely by hand;

Without the technology to connect the golden treasure box to the center of the mage tower, relying purely on chips, accumulating resources will make him bankrupt;

There is no mage tower to store data, no tower spirit to calculate, relying on him to calculate, it must be calculated to death...

And now, after one turn, it's another turn.After turning around three times in a row and accumulating enough data, the mouse was removed from the spell and placed in a corner, and given a soothing spell, it allowed it to eat and drink by itself.Gretel held the notebook and sat next to the center of the mage tower:
"MOSS, call up the image, just one image."

A frontal plain film of the mouse is projected on the wall.Gretel pointed to the front view film and explained to MOSS:

"MOSS, from white to black, how many brightnesses can you distinguish? Can you divide them equally?"

"Boss, how to share equally?"

It's over.Gretel slapped his head with a crisp sound. Although MOSS can chat with him and help him deal with affairs, its essence is artificial intelligence!

The characteristic of artificial intelligence is that if you don't know it, you can't. Even if it can learn by itself, you have to teach it first...

So, how should this brightness be defined?

He chattered, from high school physics review to college physics, to "Medical Physics".Coupled with some messy fragments of knowledge, he finally deduced a method for him:
"Moss, you find a non-luminous wall - preferably a white wall. In the dark, define this brightness as 0, then use the brightest white light you can to illuminate it, and define its brightness as 255 .”

The display screen at the center of the mage tower flickered, then flickered again, shot a white light, and then went out completely.Then, a line of words was typed out of the white light: 255.It went off again, and a line of words: 0 was printed on the black screen.

Okay... that's fine too.Gretel went on to order:
"You reduce the brightness of the brightest white light by half...or half the energy to illuminate the wall. Then, the color you get is half of the brightness. Divide it equally, and so on, will this work?"

The display flickered rapidly.Gretel almost thought that he heard the "creaking" sound of the hard drive.Soon, a block flashed on the screen:
16 rows, 16... probably 16 columns.Gretel looked at it for a long time, but he didn't see how many vertical grids were divided into one horizontal row...

He belatedly remembered a sad fact: the human eye has its limit.There are only 16 levels of grayscale that humans can distinguish...

"MOSS, can you distinguish these brightnesses?"

"Yes, boss."

"On these images you recorded, can you discern these different brightnesses?"

"Yes, boss."

Thank goodness... Gretel was relieved.The information received by the meditation field of vision is different from that of the human naked eye.Although the eyes couldn't tell, the information was faithfully translated through the golden treasure box and recorded by the center of the mage tower.

If you can distinguish, you can make a high-precision CT map!

Gretel went on to order:

"Okay, MOSS, you cut the image you recorded into small grids of 0.5 mm by 0.5 mm, and then mark the brightness of each small grid with a number."

This time, Tarling was silent for a longer period of time, so long that Grete almost thought that Tarling was broken...or stuck.Alas, some sound is also good, such as the hum of the hard disk, such as the sound of the fan...

Thinking too much, this is the center of the mage tower, there are no such voices.It is not impossible to let MOSS simulate it, but when it is fully calculating, it is necessary to give yourself some sound effects to tell yourself that it is working hard?

Why bother dragging down the computing power?

Gretel poured himself a cup of tea and sipped it slowly.Drink tea, eat biscuits, until the two cups of tea are finished and the plate of small biscuits is empty, then the voice of MOSS is heard:
"Boss, it's all right."

"...Very good. Then, MOSS, you take this picture..."

He waved lightly.In the void, [Silent Phantom] pulled out a cube, and the cross-section inside was divided into countless boxes.Then, the erected image is stretched 360 degrees with the center of the cross section as the axis:

"Every point of each picture, the data is marked. Find the sum of the data of each point, find the average, and restore the image according to the corresponding light and shade. Finally, stack them one by one to make a three-dimensional image .can you?"

"Yes, boss. It will take time, boss."

"Okay, I'll leave it to you."

MOSS silently began to calculate.Gretel rolled up his sleeves and went about his part:
Dissect the mouse.

Well, according to the fixed operating procedures, the right hand grasps the tail and lifts it up; the left thumb and index finger hold down the head and neck of the mouse and press down; , pull hard!

quack!

Beautiful, the execution was clean and neat, I haven't let go of the mouse experiments I used to do!
Gretel gave himself a thumbs up and began to dissect.According to the previous surgical approach, cut the skin, cut the muscle tissue, and expose the ribs.Remove the wire from the ribs, remove the wire from the spinous process...

Pick up the mouse and use [Detect Magic] to take a photo from the front and side.There is no significant change in the angle of scoliosis, indicating that the scoliosis is structural and has been thoroughly developed.Alright, take out the spine and start looking at the pathological changes!

Gretel "clicked", "clicked", a knife was cut on the cervical spine, and a knife was cut between the lumbar spine and the tail vertebrae.Cut off the ribs and take out the spine.

Lift it up and look, the spine is centered on the top vertebra, the vertebral body is laterally curved on the coronal plane, convex on the sagittal plane, and rotates on the longitudinal axis.Obviously, a three-dimensional S-shape is turned out.

"MOSS! Record the shape of this spine!"

Broken, MOSS did not answer, MOSS is stuck... Is there too much to calculate, and I still don't understand it yet?

Gretel stretched out his hands and gently touched these vertebral bodies, trying to keep these deformations firmly in his mind.That's what you'll be dealing with, and that's what you'll be treating in the future.

See its condition clearly, see all its changes, and don't let down the sacrifices of these experimental animals!

Gretel picked up the scalpel again and continued to dissect.After removing the muscles next to the spine, one can see the thinning of the epiphyseal plate on the concave side of the vertebral body, and the thickening and thickening of the cortex and trabecular bone.On the protruding side, there have been obvious organic changes in response to the thinning and thinning.

Ok……

If it is on the human body, how should it be corrected?
【Mage Trick】!
Gretel squeezed out objects with the same shape and rough materials, and then trimmed and added little by little.Cutting, repairing, cutting, repairing, debris flying in front of him, the S-shaped twisted spine became erect little by little.

"Okay... Now it's time to see how this kind of repair will not hurt the spinal cord and nerves..."

And if you want not to hurt these things, CT is the most basic.In theory, NMR should be produced, but NMR...

He still doesn't know what to do...

Gretel straightened up and tried to stretch.It can be regarded as done, and if it is not done, he feels that he is about to have a herniated disc:
"Moss, are you ready?"

"Soon...alright..." MOSS's voice faltered one after another, as if he was still struggling to calculate:

"Boss...give...me...time...time..."

This speed is not good!I finished this wave of research, and an hour has passed, why hasn't the [-]D reconstruction report come out yet!
In the previous life, a chest scan was done, and the emergency department could report it within 15 minutes. The mouse is much smaller than the human chest, and it hasn’t come out yet?

After cleaning up the mess, Gretel drank a glass of milk and ate two small biscuits for supper.Looking back, MOSS finally projected a three-dimensional image in front of him.Gretel only glanced at it, then frowned tightly:
Tsk, this still doesn't work!

It's too blurry, the edges of the organs and bones can't be seen clearly at all!

The speed is slow, and the image is blurry. This magic CT, the algorithm must be iterated!

Definitely have to iterate hard!
Sigh, he really doesn't know how to write algorithms... Go to Mrs. Alva tomorrow and ask, is there any magician who is good at training artificial intelligence?
****
3400 words!
[-] words completed!

Tomorrow will continue the [-]D update!

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　Thanks to teacher @书友20201027193620425131037 for his lecture...

　　It must be said that the boss is the boss, the knowledge about ct, including gray scale, etc., I have been studying for a long time and I am still dizzy, the boss can explain it in a few words...

　　
　
(End of this chapter)