CT machine scanning area determining method, system and CT machine

Abstract

The invention discloses a CT machine scanning area determining method, system and CT machine. The method comprises steps that an ortho-position positioning scanning image and a side-position positioning scanning image are acquired; pixel points of the ortho-position positioning scanning image and pixel points of the side-position positioning scanning image are respectively corresponding to a position of an examining platform bed plate; the ortho-position positioning scanning image and the side-position positioning scanning image are correlated and displayed on the same display interface according to a principle that pixel points on the same bed plate position are correspondingly displayed; scanning area information determinedby a user either in the ortho-position positioning scanning image or the side-position positioning scanning image is received; a pixel point position corresponding to the scanning area information is synchronously marked in the ortho-position positioning scanning image and the side-position positioning scanning image; and a bed plate position corresponding to the scanning area information is determeind according to the pixel point positions of the scanning area information in the ortho-position positioning scanning image and the side-position positioning scanning image.

Description

technical field [0001] The invention relates to the field of medicine, in particular to a scanning range determination method and system of a computed tomography (CT) machine and a CT machine. Background technique [0002] When using a CT machine to scan and image the human body, the subject 101 needs to be placed on the bed board 1021 of the patient examination table 102, and the subject 101 is horizontally placed and sent into the scanning area of ​​the CT gantry 103 by moving the bed board 1021. Scan check. Scanning inspection generally includes two stages of scanning. The first stage is toposcan, that is, the stage of determining the scanning range, which determines the start position, end position and The tilt angle of the rack (gantry). The second stage is tomoscan, the real scanning imaging stage. In a CT machine, a positioning scan image is also called a topo scan image. [0003] During the first stage of positioning scanning, depending on the target organ to be ...

AI Technical Summary

Problems solved by technology

For the situation where it is necessary to obtain the frontal positioning scan image and the lateral positioning scan image at the same time, since the two images are displayed independently, when determining the scanning range, it is necessary to carry out identification and calculation on the two images respectively, and it is necessary to Repeated switching between two images makes the positioning efficiency low, and the positioning process is not intuitive enough

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