Detector photon arrival information determination method, device and medical equipment
A determination method and detector technology, applied in medical science, equipment for radiological diagnosis, diagnosis, etc., can solve problems such as wrong judgment of photon arrival time, affecting imaging quality, etc., to eliminate interference, improve imaging quality, and make accurate judgment Effect
Active Publication Date: 2022-03-25
SHANGHAI UNITED IMAGING HEALTHCARE
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When the detector pixel size is small, the electron cloud generated by X photons may be collected by adjacent detector pixels, resulting in wrong judgment of the photon arrival position and photon arrival time of the photons collected by the detector, thereby affecting imaging quality
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[0030] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
[0031] In one embodiment, as figure 1 As shown, a method for determining photon arrival information of a detector is provided, which includes the following steps:
[0032] Step S102, constructing a virtual pixel between any preset number of adjacent real pixels.
[0033] Specifically, a radiation detector in medical equipment is a device that converts the energy of radiation into electrical signals. The detector receives the radiation and converts the radiation intensity of the radiation into an electrical signal, and the medical device generates an image from the el...
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The present application relates to a method, device, medical equipment and storage medium for determining photon arrival information of a detector. The method includes: constructing a virtual pixel between any preset number of adjacent real pixels; when the signal amplitude of the virtual pixel exceeds a set threshold, the preset number of adjacent real pixels The real pixel with the largest acquired signal amplitude among the real pixels adjacent to it is taken as the central pixel, and the position of the central pixel is taken as the arrival position of the photon. By adopting the method, the arrival position of the photon can be accurately determined, the interference of the electron cloud generated by the photon is eliminated, the determination of the arrival position of the photon is more accurate, and the imaging quality can be further improved.
Description
technical field [0001] The present application relates to the technical field of medical equipment, and in particular, to a method, apparatus, medical equipment and storage medium for determining photon arrival information of a detector. Background technique [0002] With the development of medical equipment technology, in order to reduce the radiation dose of patients and improve the quantitative analysis of CT, the photon counting energy spectrum CT technology came into being. Photon counting energy spectrum CT has the function of material composition analysis and has the advantages of reducing the radiation received by the patient. The development of photon-counting energy spectrum CT has become one of the next-generation CT development directions that both domestic and foreign academia and industry are concerned about. X-photon counting detector (PCD) technology is the key to restrict the development of photon counting spectral CT. [0003] In the current traditional t...
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IPC IPC(8): A61B6/00
CPCA61B6/4241
Inventor 杨鹏李晓超
Owner SHANGHAI UNITED IMAGING HEALTHCARE