Patient-specific region-of-interest fluoroscopy device for X-ray dose reduction.
Patient-specific region-of-interest fluoroscopy device for X-ray dose reduction.
复制标题
用于减少 X 射线剂量的患者特定感兴趣区域透视装置。
DOI：
10.1148/radiol.2262011812
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Molloi,Sabee
中科院分区：
文献类型：
--
作者：
Xu,Tong;Le,HuyQuang;Molloi,Sabee
建立并评估了一个感兴趣区域（ROI）透视装置，该装置提供了一个自动生成的具有任意形状的ROI滤波器，以及数字补偿图像。使用可变形衰减材料生成ROI滤波器。采用补偿比法和运行平均插值法对图像进行补偿。根据所使用的x射线管电位，预测了图像补偿参数。评估了带ROI滤波器和不带ROI滤波器的图像质量。这种ROI透视技术被证明可以大大减少患者和操作员的辐射暴露，而不会降低ROI内的图像质量。©rsna, 2003
A region-of-interest (ROI) fluoroscopy device that provides an automatically generated ROI filter with an arbitrary shape, as well as digitally compensated images, was built and evaluated. ROI filters were generated by using a deformable attenuation material. Images were compensated by using a compensation ratio and a running average interpolation method. Image compensation parameters were predicted on the basis of the x-ray tube potential used. The image quality with and without an ROI filter was evaluated. This ROI fluoroscopic technique was shown to substantially reduce patient and operator radiation exposure without degrading image quality within the ROI.© RSNA, 2003