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发明授权
CN1839754B 降低X射线成像过程中患者辐射曝光的方法和数据处理系统 有权 转让

降低X射线成像过程中患者辐射曝光的方法和数据处理系统
摘要：
本发明涉及一种降低X射线成像过程中患者的辐射曝光的方法和数据处理系统，其中通过摇动镜头上下左右变换角度地显示和缩放由一个X射线成像系统获取的患者的一个第一图像取代使用连续辐射的荧光透视降低患者的辐射曝光。初始地通过X射线成像系统获取一个第一图像。接着，彼此相对地改变患者和/或所述成像系统的一个部件的位置。可以响应于位置改变在显示器上自动地摇动镜头上下左右变换角度地显示第一图像。可以调节准直器选择一个准直器的覆盖面积。可以在选取的准直器覆盖面积的基础上在显示器上自动地改变第一图像的尺寸。还可以在选取的覆盖面积的基础上自动地选择一个成像设备参数。使用该成像系统获取一个第二图像并且自动地改变第二图像以实质上充满显示器。
摘要（英）：

A method and system reduce radiation exposure by panning and zooming a first image of a patient acquired by an x-ray imaging system rather than using continuous radiation fluoroscopy. A first image of a region of interest is initially acquired. Subsequently, the patient may be repositioned with respect to the imaging system or a component of the imaging system may be repositioned with respect to the patient. The first image may be automatically panned on a display in response to the repositioning. A collimator may be adjusted to select a coverage area of the collimator. The first image may beautomatically resized on the display based upon the size of the selected coverage area. An optimal imaging device parameter also may be selected based upon the selected coverage area. A second image may be acquired using the imaging system and automatically resized to substantially fill the display.

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