Numerical simulation-based X-CT virtual data acquisition and image reconstruction method and system

Abstract

The invention provides a numerical simulation-based X-CT virtual data acquisition and image reconstruction method and system; the method comprises the following steps: forming sample information models according to different purposes; building an X-CT equipment hardware parameter model; building physics models and mathematics models via different data acquisition methods; building a CT equipment original data acquisition physics model and a mathematics model, and finishing simulation and acquisition of the original data; using the original data for image reconstruction. The invention further comprises the step of building an artifact data model. The simulation and analysis method and system can combine the virtual digital human technology with the virtual CT technology without using expensive and huge hardware equipment, thus preventing radiation damages; the method and system can be widely applied to large-scale expensive equipment and high and new technology correlation teaching training aspects.

Description

technical field [0001] The invention relates to the technical field of CT imaging, in particular to a numerical simulation-based X-CT simulation virtual data acquisition and image reconstruction method and imaging system. Background technique [0002] X-ray CT technology plays an important role in modern hospital diagnosis. Its fast and clear internal tomographic images of the human body and other specialized imaging technologies provide intuitive diagnostic basis for accurate diagnosis of diseases, and are increasingly used in clinical practice. [0003] The installed capacity of CT is maintained at the level of 1000 units per year, which is also a great demand for production, installation, operation and maintenance technicians. Therefore, it is particularly important for the training of technicians, especially the training of experiments and practices. [0004] However, the batch, standardized and large-scale experimental teaching of X-ray CT has not been effectively car...

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Problems solved by technology

[0004] However, the batch, standardized and large-scale experimental teaching of X-ray CT has not been effectively carried out. The reasons are that the equipment is large-scale, expensive, occupies a large area, has radiation damage, and many experimental conditions are restricted. Therefore, the main form of the current experiment is a single The demonstration under the equipment and the visit experiment in the hospital; there are two basic conditions, or two development trends, in order to realize the standardized and large-scale practical experiment in batches, one is from large-scale real machine experiment to small special experimental instrument; The second is from real machine operation to virtual device operation

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