Cross wire used for X-ray imaging and imaging processing method
An X-ray and cross-wire technology, applied in the field of X-ray imaging, can solve problems such as the difficulty in determining the center point of the cross-wire projection and the inability to accurately determine the geometric center point of the imaging receiving system, and achieve the effect of solving the hardening effect and uniform gray scale
Active Publication Date: 2015-03-25
SHANGHAI UNITED IMAGING HEALTHCARE
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[0007] The problem to be solved by the present invention is that it is difficult to determine the center point of the projection of the fork wire using the image formed by the existing fork wire, so that the geometric center point of the imaging receiving system cannot be accurately determined
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[0050]In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0051] refer to Figure 7 , the cross wire for X-ray imaging of the present invention includes: a first plane 100, the first plane 100 is a cross, the first plane 100 includes a central area D (shown in a dotted line box in the figure), the central area is quadrilateral, from the central area D Extended areas E, F, G, and H extending outward in the direction of the arrow in the figure; where E area includes edges 1, 2, and 12; F area includes edges 9, 17, and 11, and G area includes edges 6, 7, and 8; Region H includes edges 3, 4, 5.
[0052] refer to Figure 8 and Figure 9 and combine Figure 7 As shown, the cross-shaped cross wire of the present invention also includes a plurality of second planes 200, and the second plane 200 in the...
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The invention relates to a cross wire used for X-ray imaging and an imaging processing method. The cross wire comprises a first plane and a plurality of second planes, wherein the first plane comprises a center area and extending areas extending from the center area to the outside; each edge of the first plane is connected with one second plane, the included angle between at least one second plane and the first plane is an acute angle, and the second planes forming acute included angles with the first plane extend and then intersect in one point. When the cross wire is used, X rays irradiate the marginal inclined plane, the beam path, above the inclined plane, of the X rays is parallel to the inclined plane, the penumbral effect is greatly reduced as the beam path, above the inclined plane, of the X rays is not blocked, in this way, the edges of cross wire imaging are clear, the middle points of two sets of opposite sides of the cross wire will not deflect, the middle lines formed by connecting the two corresponding middle points will not deflect, and the intersecting point of the two middle lines connected with the two sets of corresponding opposite sides will not deflect so that the projection center point of the cross wire can be determined accurately.
Description
technical field [0001] The invention relates to the technical field of X-ray imaging, in particular to a cross wire for X-ray imaging and an imaging processing method. Background technique [0002] In the field of X-ray imaging, the cross wire used for X-ray imaging is installed on the imaging transmitting device to correct the position of the geometric center point of the imaging receiving system. The position of the geometric center point of the imaging receiving system needs to be consistent with the X-ray beam path, that is, the projection center point of the crosshair and the geometric center point of the imaging receiving system are consistent. If they are not consistent, the imaging object will not be in the image center during imaging position, the spatial coordinate system of the resulting image cannot be accurately established, and some areas of the imaging object may be outside the imaging receiving system. In radiation therapy, if the projected center point of t...
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IPC IPC(8): A61B6/00
Inventor 李贵刘艳芳
Owner SHANGHAI UNITED IMAGING HEALTHCARE