479 Can't surgery be performed directly?

After Su Yang talked about the first type of image features, he stopped talking and left some time for Wang Chun and Lin Xia to digest.

After a while, Wang Chun raised his head and said excitedly: "Boss Su, what else is there."

"Polycystic liver hydatosis          Image ct       The appearance of ascendants makes the hydatitis cyst multi-academic, and the density of the ascendants is always lower than that of the mother cyst.

Multiple ascysts can be seen in the hydrangea cyst in wheel-shaped, polygonal or rose petal-like arrangement, which are characteristic manifestations of liver hydrangea, and calcification of this type of cyst wall is also common.

In addition to the manifestations of simple cysts, the circle-like shapes of different sizes can be seen in the maternal sac, with clear boundaries, and the ascense is arranged along the inner wall of the maternal sac, and the small sac wall is slender. The performance is also different along the continuous development of hydatum cysts. In the early stage, the ascense was small and round, distributed around the maternal sac, in the shape of a wheel, occupying part of the space in the maternal sac. Later, the ascense increased and occupied almost all the space in the maternal sac, which looked like a grape-shaped one. A small amount of the mother sac fluid was scattered between the ascenses. The mother sac fluid was dense and the ascenses were squeezed into a round, rhombus or polygonal shape."

Su Yang talked one by one. While he was talking, he turned on the laptop next to him and found some corresponding films for the two guys to see. When the theory and images were combined, the two people suddenly realized that their imaging understanding of hydatum disease had risen to a higher level. I dare not say much. Now, if you give them a film, they can basically make their own independent and accurate judgments.

No one expected that Fang Min, who had been standing next to him and was silent, suddenly spoke: "Su Yang, your judgments are not based on the moment invariant, right?"

Moment invariant?

Wang Chun and Lin Xia were stunned when they heard this.

What the hell is this?

It sounds like advanced mathematics!

What does this have to do with medicine?

They looked at Su Yang in unison.

Su Yang smiled and said, "Yes, Mr. Fang, this is not based on the moment invariant."

"What is a moment invariant?" Wang Chun asked in a daze.

Su Yang patiently explained: "Based on different image feature attributes and different feature extraction methods, different feature description parameters will be obtained, that is, different image features will be obtained.

Texture characteristics are a common concept in image analysis, which well describes the uniformity, smoothness, and differences between adjacent pixels, etc., and the texture characteristics calculated according to different methods also have different meanings.

For example, in 1961, the concept of moment invariant was first proposed, but the moment invariant is not orthogonal, so it contains a lot of redundant information;

khotanzad et al. proposed that zemike      The moment invariant is an orthogonal moment invariant. The orthogonal moment is better than other types of moments in terms of information redundancy, image expression and recognition effect;

chen       d.balasubramanian           d.balasubramanian                                                                                                                                                                                                                                    �

Based on the texture features obtained by wavelet transform, various features of the image in the wavelet domain are expressed.

From the perspective of clinical imaging medicine, ct                                                                                                                          �

The liver hydatum ct    The image has its own unique pathological characteristics. The grayscale distribution of the image has unevenness and boundary ambiguity. For different hydatum cyst types, the image performance is different;

The liver hydatum lesions do not have obvious regular structure, no uniformity, and have the characteristics of high grayscale resolution.

According to the differences in grayscale distribution and texture of the images in my country, combined with the characteristics of liver hydatum disease, for normal liver images, monocystic liver hydatum disease images and polycystic liver hydatum disease images, I proposed feature extraction based on grayscale histograms, special integration extraction based on grayscale symbiosis matrix, and feature extraction based on Kolmogolov complexity.

I got 6 grayscale histogram features, namely the mean (avg), variance (std), skewness (sk), kurtane state (kur), energy (ene) and entropy (ent); 10 grayscale symbiosis matrix features, namely the mean and standard deviation of energy, entropy, moment of inertia, correlation and deficit moments, i.e. t1, t2, t3, t4, t5, t6, t7, t8, t9 and t10; Kolmogolov complexity (kc) features. Use the above 3 methods to obtain a total of 17 features of the ct image..."

Wang Chun was stunned when he heard this.

Damn, most of them don’t understand, what should I do?

Lin Xia, who was beside him, also looked like he saw aliens.

Are both of them top students from 985 universities? They used to be very successful when they were in medical school. They had excellent grades in all subjects and were very good after studying for a doctorate. But now, why can’t you understand?

I can't even understand how to watch a movie?

how so?

Fang Min frowned and didn't speak for a long time. After a while, he raised his head and sighed slowly: "I'm old, old, why is it so difficult to hear these things!"

After sighing for a while, Fang Min raised her head, looked at his two apprentices, and said with a bad look: "Do you understand now?"

Wang Chun and Lin Xia were stunned!

What do you understand?

Mr. Fang didn’t say what they wanted to understand?

Seeing the two people's stupid appearance, Fang Min was even more angry for some reason. He pointed at the two people with his fingers and said with a grudge: "You guys--"

I almost wanted to leave.

Wang Chun and Lin Xia were even more confused!

What happened to Mr. Fang today? Why does he feel disliked the more he looked at them, as if he had a grudge against them?

Fortunately, after a while, Fang Min's attention returned to the patient.

Fang Min asked Su Yang: "Su Yang, this film came from a long time ago. What do you think will the patient be in the current situation?"

Su Yang thought for a moment and said bluntly: "Old Fang, the situation is probably not good. According to my experience..."

etc!

Fang Min suddenly interrupted.

Lin Xia and Wang Chun were also very agile at this moment, and they immediately heard the word with the most information in Su Yang's words - experience!

Su Yang said that based on his experience, in other words, Su Yang has treated many liver hydatum diseases?

But Su Yang is not a doctor from the pastoral area. He should not have experience in this area, right?

Su Yang was interrupted by Fang Min, and then he realized that he had let go, but he did not correct it. In the system space, he did have many treatments for liver hydatosis and still has a lot of experience.

He continued, “I think we have to be ready for a protracted war?”

"You mean, the patient's condition is not allowed to undergo surgery directly?"
Chapter completed!