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X-ray diagnostic apparatus and method for operating an x-ray diagnostic apparatus for determining quality values
X-ray diagnostic apparatus and method for operating an x-ray diagnostic apparatus for determining quality values
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机译:X射线诊断设备和用于操作X射线诊断设备以确定质量值的方法
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摘要
The invention relates to an angiographic x-ray diagnostic apparatus with an x-ray radiator having an x-ray tube, with a patient positioning table having a radiation-transparent positioning plate and mattress, with an x-ray detector, with an imaging system, an image processing unit and a measuring device to which the output signals of the x-ray detector are fed and which has a first device for determining a value determining the reproduction quality of clinically relevant objects, a second device for determining local variances of the noise in a homogenous image region of different x-ray images and a device for taking the ratio of the output values of the two devices.
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