CT scanning auxiliary method based on image detection, computer readable storage medium and CT scanning device

Abstract

The invention provides a CT scanning auxiliary method based on image detection, a computer readable storage medium and a CT scanning device, and relates to the technical field of CT scanning. The method comprises the steps of: in the scanning process, collecting a body position image of a patient in real time; inputting the acquired body position image into a constructed key point detection model,and extracting coordinates of human body key points in the body position image through the key point detection model; importing the coordinates of the key points in the body position images acquiredthis time and the coordinates of the key points in the body position images acquired last time into a pre-constructed image domain similarity index calculation model, and calculating the similarity ofthe two body position images; and finally, judging whether the patient is subjected to positioning change or not in the scanning process according to a threshold condition. If movement of the patientis detected, scanning can be interrupted, and the patient is prevented from receiving unnecessary doses. Patient positioning changes can be found in time in the CT scanning process, the operation difficulty of technicians is lowered, and dependence on the operation level of CT equipment is reduced.

Description

technical field [0001] The invention relates to the technical field of CT scanning, in particular to a CT scanning auxiliary method based on image detection, a computer-readable storage medium, and a CT scanning device. Background technique [0002] CT (computed tomography imaging system) uses X-rays to scan objects to obtain projection data, and process these projection data through tomographic reconstruction algorithms to obtain the object's tomography and three-dimensional density information to achieve the purpose of non-destructive testing ( figure 1 ). It has important applications in medical diagnosis, industrial non-destructive testing and other fields. In the field of medical diagnosis, CT has become the three key medical imaging systems together with magnetic resonance (MRI), positron emission tomography and CT combination system (PET / CT) since its advent in 1970. Compared with other imaging methods, CT reconstruction can quickly obtain high-resolution images, th...

AI Technical Summary

Problems solved by technology

[0003] Because there are many factors that affect the final quality of CT scan images, radiologists and technicians need rich experience to screen CT scan images and eliminate low-quality CT scan images to avoid affecting the judgment of the disease, and the experience of many doctors Insufficient, it is difficult to distinguish low-quality CT scan images, especially in hospitals below the tertiary A hospital, many technicians are just graduated students, do not have so much experience in use

[0004] On the other hand, radiologists and technicians also need to adjust the patient's position before scanning, and select the appropriate scanning protocol and parameters so that high-quality and clear images can be scanned. position changes, it is difficult for radiologists and technicians to detect and remind patients to adjust in time, and changes in patient position often lead to unqualified CT scan image quality, and many times patients need to scan again or even multiple times, suffering a lot of radiation dose in vain

Images