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Radiation image picking-up device

A technology of radiographic imaging and radiographic images, which is applied in the fields of radiological diagnostic equipment, medical science, diagnosis, etc., and can solve the problem of cutting out areas without valid data, etc.

Active Publication Date: 2011-06-08
SHIMADZU SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the effective image area including the center position is cut out without offset correction, the area without valid data may be cut out

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0069] Next, Embodiment 2 of the present invention will be described with reference to the drawings. Figure 12 It is a schematic front view and a block diagram of an X-ray imaging device related to Example 2, Figure 13 It is a graph showing the relationship between the inclination angle and the shift of the center of the X-ray image, which also includes Example 3 and Example 2 which will be described later. In addition, the same code|symbols are attached|subjected to the part common to the above-mentioned Example 1, and the description is abbreviate|omitted.

[0070] In the present embodiment 2, the X-ray imaging device except the image processing unit 9, the storage unit 11, and the gate driver 35 (refer to Figure 5 ) other than the function, the other configurations are the same as those in Embodiment 1, so the description thereof will be omitted.

[0071] In the second embodiment, the storage unit 11 is provided with a relationship between the tilt angle (elevation ang...

Embodiment 3

[0080] Next, Embodiment 3 of the present invention will be described with reference to the drawings. Figure 14 It is a schematic side view and a block diagram of the X-ray imaging apparatus related to the third embodiment. In addition, the same code|symbol is attached|subjected to the point common to the above-mentioned Example 1, 2, and the description is abbreviate|omitted.

[0081] In the third embodiment, the configuration of the X-ray imaging apparatus is the same as that in the first embodiment except for the functions of the image processing unit 9 and the storage unit 11 , and therefore description thereof will be omitted.

[0082] In the present third embodiment, the storage unit 11 is provided with the relationship between the inclination angle (elevation angle) of inclination and the offset of the center of the X-ray image (refer to Figure 13 ) Form 11a. The function of the table 11a is the same as that of the above-mentioned second embodiment, so its descriptio...

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PUM

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Abstract

A radiation image picking-up device of the present invention carries out an image picking-up (slot image picking-up) to obtain a plurality of radiation images only once based on radiations detected with its narrowly limited irradiating field. Since those radiation images are picked up with a narrowly limited irradiating field, shifted centers of the radiation images can be obtained by a center calculating means. From a position relationship between the shifted centers the of the sought radiation images and an irradiating field of a radiation detecting means, a shift calculating means seeks shifts of the centers of X-ray images. Since, based on the sought shifts, a plurality of radiation images themselves are subjected to shift corrections, a one-time slot image picking-up can correct the shifts. In such a slot image picking-up, shifts can be corrected while a central point can be sought at the time when each image is obtained or central points are collectively sought after a series ofimages are obtained.

Description

technical field [0001] The present invention relates to a radiation imaging device that performs radiation imaging. Background technique [0002] Conventionally, there is a method that rotates and tilts the top plate (loading mechanism) on which the subject is placed around the axis of the horizontal axis, raises and lowers the top plate to a standing posture / inclined posture / horizontal posture (prone posture), and performs imaging according to the imaging posture. device (for example, refer to Patent Document 1). When the top plate is raised and lowered, as shown in Patent Document 1, the X-ray tube (radiation irradiation mechanism) and X-ray detector (radiation detection mechanism) associated therewith are inclined, and the pillar (support mechanism) supporting the X-ray tube is also inclined. [0003] On the other hand, there is a device in which a collimator (irradiation field of view control mechanism) for controlling the irradiation field of view irradiated from the X...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00
CPCA61B6/5241A61B6/4476A61B6/589
Inventor 酒井泷人田中雅大
Owner SHIMADZU SEISAKUSHO CO LTD