What do A, L, R, and P mean in CT films?

What do A, L, R, and P mean in CT films?

The position of the cross-sectional observation point means from the front - P, the left - L, the right - R, and the rear CT slice observation begins at position -A.

At the same time, there are also slice observations starting from top-T and bottom-B. What does p r o p o l i s mean

p r o p o l i

I am mine

p r o p o l i

I am mine

propolis British ['pr?p?l?s] American ['pr?p?l?s]

n. Propolis;

[Example] The results showed that the effect of propolis namometer pound

material was better than that of ethanol extracted propolis.

The results show that the antibacterial efficacy of surface-modified nanometer TiO2 composite propolis is better than that of propolis alcohol extract.

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What does w: 1596, l: 1868 mean on the bone age film?

Hello, according to your description, your problem is not clearly described

Please When asking a question on Baidu, you must state it roughly and clearly. Some people say that this is the reason why Baidu does not respond to questions. A group of low-quality questioners creates a group of low-quality answerers. What does l e o p a r d mean

leopard[English][?lep?d][American][?lep?rd]

n. Leopard; jaguar, leopard, leopard;< /p>

Plural: leopards

Easily confused words: LeopardLEOPARD

The above results are from Kingsoft PowerWord

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If you are satisfied, please click the button on the upper right to select the satisfactory answer button. What does S U P E R A L mean?

Superal Subele

An olive oil brand in Spain

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In addition, if you think my answer is helpful to you, please don’t forget to adopt it! What does film mean?

Film means a little bit; a small amount; short. See Chen Xuling of the Southern Dynasty's "Jian Renshan Shen Master Bao Dao Book": "For example, if the road is filled with rubble, no one will be surprised; if there is gold, ten thousand people will stop walking."

Basic explanation

1 . [a roll of film]: film.

2. [film]

3. X-ray film.

Make a movie.

4. Generally refers to videos.

5. [gramophone record;disc]: gramophone record.

6. [piece; slice; flake]: piece, generally refers to a flat and thin object.

Iron piece.

7. [visiting card]: business card; name card.

Come on! Take my photo and send him to the examination room. ——"Upgrade to Three Levels in a Row"

8. [a few]: just a little; a small amount; short.

Quotes and explanations

1. A little bit; a small amount; short-lived. Chen Xuling of the Southern Dynasty wrote "Book of Admonishment to Master Jian Renshan Shen Dao": "For example, if the road is filled with rubble, no one will be surprised; if the film is golden, thousands of people will stop walking." Song Yang Wanli's poem "Summer Solstice Yu Ji and Chen Luchang Walking on the Stream at Dusk": "Movie time The color of the mountain is suddenly yellow, then purple, and then completely green. "Poem 2 of "Visiting Ziren after the Shangyuan Dynasty" by Yang Wanli of the Song Dynasty: "The plum blossoms are ten miles long, and the peach blossoms are leaking out."

2. Generally refers to flat and thin objects.

Chapter 101 of "A Dream of Red Mansions": "I saw Jia Lian sitting next to him angrily, and Ping'er bent over to pick up a bowl of movies." Scene 3 of Lao She's "Shopgirl": "He Said that it only takes him seven minutes to pick out a film."

3. Refers to clothes.

Chapter 42 of "Jin Ping Mei Ci Hua": "Those two old pieces are so easy to wear when going out to meet people.

"

4. Name the business card.

Chapter 33 of "The Appearance of Officialdom": "It doesn't matter whether you pray or not! I went to his door and took a picture, and I finally made it there. Chapter 14 of "The Strange Current Situation I've Witnessed for Twenty Years": "I came to ask for a meeting. He said his surname was Chen, and he didn't have a film." "Bing Xin's "To Qinglong Bridge": "Even the president's movie can't be used as a ticket! "

5. Dialect. Refers to the soles of the feet. Scene 3 of the Yangzhou Opera "The Habitual Bandit Zhou Zishan": "Old Ma, capture Yang Guobao and trample him to death! "

6. Film. Refers to films, X-rays, etc.

Lu Xun's "Collected Letters to Yan Limin": "I don't know if you watch movies; Of...watching movies about Africa, Antarctica, and the Arctic. " Chen Rong, "Middle Age" IV: "Patients with four beds and three beds, please ask Director Sun to watch the movie again. "What does L5D mean in CT films?

CT can be seen as a part that looks like the brain, lungs, liver, and bones. With the development of scientific CT, hollow organs such as the heart can also be seen. . Simply put, there are positive and negative CT 1000 color classes, and each tissue has a different color class, or CT value. Bone, blood, fat, and gas have different relatively fixed CT values. , the membrane is white, for example: brain! The CT brain parenchyma and blood values ??are different, and the CT value is much higher than that of the blood brain parenchyma! If the CT film of cerebral hemorrhage turns the original brain parenchyma into white! Introduction of CT:

CT is a fully functional disease detection instrument, which is a computer technology called X-ray tomography. The working scheme of CT is this: It is used in different applications. The X-ray absorption and transmittance of different tissues of the human body are measured, and then when the data obtained by the high-sensitivity measurement of the instrument are input into the computer, the computer will then process the data, and images can be taken of the subject being examined Part or any part of the body in three-dimensional cross-section, small lesions are found. Since X-rays were discovered, medicine began to use them to detect human diseases. However, due to differences in the human body, some organs that absorb X-rays are very small. Lesions in overlapping tissue were difficult to find before X-rays. Therefore, American and British scientists began to look for something new to make up for the shortcomings of X-ray detection of human diseases. In 1963, the American physicist Cormac. The discovery of different X-ray transmittances in human tissue also drew on some related formulas, which laid the theoretical foundation for the subsequent application of CT. In 1967, according to the division of labor Henfield, the British electronics industry was not aware of science. Mark Case also began working on developing a new technology. He first studied the ability to identify patterns and enhance the production of X-ray sources in a simple scanning device, later used to test human head scan measurements. , he used this device to measure the body and achieved the same effect. In September 1971, Henfield also collaborated with a neuroradiologist to design the device, which he manufactured and installed at a London hospital and began to examine it in October. On the 4th, the hospital used it to examine the first patient. In this case, the patient was turned over completely awake and lying on his back. An X-ray tube was installed above the patient, and a counter was installed around the examination site while the patient was rotated. The number of X-rays absorbed by various parts of the body is reflected on the counter, and then processed electronically on the computer, thereby displaying the image of each part of the subject on the screen. In April 1972, the hen test was very successful. The results announced for the first time in British Radiology at the Feld Annual Meeting officially announced the birth of CT. This news caused great shock to the technical sector, and the development of CT was known as the most important achievement in radiological diagnosis since Roentgen discovered X-rays. Therefore, Henfield and Cormac won the 1979 Nobel Prize in Physiology and Medicine. Today, CT is widely used in general medical treatment. What does it mean that the film is very transparent?

The exposure is accurate, the color reproduction is accurate, there is no fog, the scenery is crystal clear, as real and lovely as if it had just been washed.

For digital photography, transparent films mainly depend on lens quality, light usage, and exposure control.

It can be said that landscape films are transparent, and portrait films can also be said to be transparent.