Phase contrast imaging method and device, storage medium and medical imaging system
A phase-contrast imaging and phase-contrast image technology, which is applied in the field of image reconstruction, can solve the problems of difficult online reconstruction and time-consuming iterative phase-contrast image reconstruction process, so as to improve reconstruction efficiency, improve image clarity, reduce the amount of calculation and effect of difficulty
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Embodiment 1
[0022] figure 1 It is a schematic flow chart of a phase contrast imaging method provided by Embodiment 1 of the present invention. This embodiment is applicable to the case of rapidly generating a high-quality phase contrast image based on a phase contrast CT image reconstruction model. This method can be provided by the embodiment of the present invention The phase-contrast imaging device to perform, specifically includes the following steps:
[0023] S110. Acquire a phase-contrast CT image of the target object.
[0024] S120. Send the phase-contrast CT image to a pre-trained phase-contrast CT image reconstruction model, and determine the output image of the phase-contrast CT image reconstruction model as the phase-contrast image of the target object, wherein the CT image reconstruction The model is trained from standard images and sample data containing noise.
[0025] In this embodiment, a phase-contrast CT device is used to detect a target object, and a phase-contrast CT...
Embodiment 3
[0056] Figure 5 It is a schematic structural diagram of a medical imaging system provided by Embodiment 3 of the present invention, Figure 5 A block diagram of an exemplary medical imaging system suitable for implementing embodiments of the invention is shown, Figure 5 The medical imaging system shown is only an example, and should not impose any limitation on the functions and scope of use of the embodiments of the present invention.
[0057] The medical imaging system includes a medical imaging device 500 and a computer 600 .
[0058] The computer 600 can be used to implement specific methods and devices disclosed in some embodiments of the present invention. The specific device in this embodiment uses a functional block diagram to show a hardware platform including a display module. In some embodiments, the computer 600 can implement some embodiments of the present invention through its hardware devices, software programs, firmware and their combinations. In some emb...
Embodiment 4
[0067] Embodiment 4 of the present invention provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, CT imaging as provided in all invention embodiments of the present application is realized. The method includes:
[0068] Acquiring projection data of the target object, wherein the projection data is collected when the target object is detected based on a preset dose of X-ray photons, and the preset dose is less than the CT standard dose;
[0069] Send the projection data to be processed to a pre-trained CT image reconstruction model, and determine the output image of the CT image reconstruction model as the CT image of the target object, wherein the CT image reconstruction model is composed of a standard dose of The CT image and sample projection data containing noise are trained, and the CT image reconstruction model includes a first sub-network processing module, a second sub-network processing module an...
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