X-ray inspection apparatus and operation method

An inspection device and X-ray technology, which are applied in the fields of radiological diagnosis instruments, radiological diagnostic image/data processing, medical science, etc., can solve the problems of increasing, decreasing, and difficult to achieve the radiation dose, and reduce the burden. Effect
CN106256325AInactive Publication Date: 2016-12-28HITACHI LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HITACHI LTD
Publication Date
2016-12-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an X-ray inspection apparatus and an operation method. In the X-ray inspection apparatus, a tomographic synthetic image can be obtained with high image quality and low radiation by optimizing the rotation angle of the tomographic synthetic photography. A processing section of the X-ray inspection apparatus determines photographing targets, i.e., positions of a tumor (804) and a guide sheath (803), calculates an optimal rotation angle (801) of an X-ray beam capable of separating both and preventing the tumor (804) and bones (806) from overlapping, acquires an image while an X-ray source and a detector are moved in the calculated rotation angle range, and reconstructs the resulting image to obtain a tomographic synthetic image.
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Description

technical field

[0001] The invention relates to a photography technique of an X-ray inspection device, in particular to a tomosynthesis photography technique. Background technique

[0002] As a method of non-destructively visualizing the inside of a subject for medical diagnosis and defect inspection of industrial products, there is an X-ray inspection method in which a subject is irradiated with X-rays and the transmitted X-rays are detected. In addition, there is an X-ray CT (Computed Tomography: computerized tomography) inspection method in which, in order to three-dimensionally understand the inside of a subject, the subject is irradiated with X-rays while rotating and the transmitted X-rays are detected. A reconstruction calculation process is performed to obtain a cross-sectional image. Among the CT examination methods, there are fan-beam CT imaging, cone-beam CT imaging, tomosynthesis using transmitted X-ray information at a limited rotation angle, and tomographic X-...

Claims

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