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Method for operating a x-ray diagnostic equipment

A diagnostic equipment, X-ray technology, applied in the direction of radiological diagnostic instruments, diagnosis, material analysis using radiation, etc., can solve the problem that high-resolution images cannot be observed

Inactive Publication Date: 2006-09-06
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Only low-resolution images can be observed, and high-resolution images cannot be observed due to the constraints of the camera

Method used

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  • Method for operating a x-ray diagnostic equipment
  • Method for operating a x-ray diagnostic equipment
  • Method for operating a x-ray diagnostic equipment

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Embodiment Construction

[0048]Coordinate system translation is more difficult to achieve on C-type devices than in the previously described applications. This is where the present invention differs from the prior art. If we examine the degrees of freedom of C-type equipment, we get:

[0049] - Movement of the patient couch 5 (see image 3 ): Although the patient couch 5 moving in the direction of the double arrow 9 satisfies the requirements of affine transformation in the 3D world coordinate system, such movement generally cannot be satisfied in 2D X-ray projection images due to the image formation process described by perspective projection the request. If it is desired to achieve a translation of the coordinate system by movement of the couch, the movement of the couch must be limited to a maximum of a few millimeters. But this is technically unrealistic.

[0050] - Change the angle of the C-arm 2 (see Figure 4 ): The C-arm angle performed in the direction of the double arrow 10 cannot meet ...

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Abstract

This invention relates to a X-roentgenodiagnosis comprising X-ray source (3) and X-ray pattern detector (4), wherein the distance between the X-ray source (3) and the X-ray pattern detector (4) is adjustable. A list of low-definition pictures can be generated from different distances, then match the pictures coordinate system and figure out high-definition picture (15) from the pictures.

Description

technical field [0001] The invention relates to a method for operating an X-ray diagnostic apparatus comprising an X-ray radiation source and an X-ray image detector, wherein the distance (SID) between the X-ray radiation source and the X-ray image detector is adjustable. Background technique [0002] This X-ray diagnostic device disclosed by DE 10037735 A1 is for example in figure 1 As shown in , the device has a C-shaped arm 2 rotatably arranged on a bracket 1, and an X-ray emitter 3 and an X-ray image detector 4 are respectively arranged at the ends of the C-shaped arm. [0003] It is also possible to use a floor or ceiling tripod instead of the shown bracket 1 . The C-arm 2 can also be replaced by a so-called electrical C-arm 2 in which the x-ray emitter 3 and the x-ray image detector 4 are electrically coupled. [0004] The X-ray image detector 4 can be a rectangular, square or fan-shaped semiconductor detector, preferably made of amorphous silicon (aSi). [0005] A ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00A61B6/00
CPCG06T2207/30004G01N2223/427G03B42/02G06T7/0024G06T3/4053G01N23/04G06T7/30
Inventor 弗兰克·戴因泽
Owner SIEMENS AG