What is spiral CT scanning? What's your name again?

Spiral ct scanning is that the X-ray tube rotates continuously around the human body, and the scanning bed automatically enters the bed at a uniform speed. Therefore, the scanning line is spiral on the patient's body surface. Also called spiral CT.

Spiral ct scanning is different from traditional CT scanning. Spiral CT scanning obtains continuous information, that is, the information of all tissues in the scanning range. Therefore, it is also called volume data, which avoids the shortcoming of missing small lesions due to respiratory movement during CT scanning. According to different detectors, spiral CT can be divided into single-layer spiral CT and multi-layer spiral CT.

Because of the special detector and new technology, the scanning speed of digital flat panel detector is greatly improved, and it can quickly scan thin layers covering a large area.

The clinical application of these techniques further expands the application scope of CT, especially in displaying organs that are greatly affected by exercise. Image quality and diagnostic information have been significantly improved. The advantages of spiral scanning are not easy to leave pathological information, fast scanning speed and great flexibility in image processing.

Extended data:

Matters needing attention in spiral CT scanning:

(1) During the inspection, follow the instructions of technicians, keep the body position still, cooperate with the inspection, breathe smoothly, hold your breath, don't swallow saliva, don't blink, etc.

(2) The interphone is installed on the 2)CT machine. If there is any discomfort or abnormality during the examination, you should inform the doctor immediately.

(3) Take off the clothes at the inspection site, including underwear with metallic substances and various items, such as headdresses, hairpins, earrings, necklaces, Yu Pei, coins, belts and keys.

Baidu encyclopedia-spiral ct

Baidu encyclopedia-spiral CT examination