Larsson Lars, Båth Magnus, Engman Eva-Lena, Månsson Lars Gunnar
Department of Radiology, Skaraborg Hospital, S-541 85 Skövde, Sweden.
Radiat Prot Dosimetry. 2010 Apr-May;139(1-3):92-7. doi: 10.1093/rpd/ncq071. Epub 2010 Feb 25.
The aim of the present study was to evaluate the use of common external image processing to compensate for differences in appearance between digital X-ray images from different vendors. Twenty posteroanterior chest radiographs were collected from each of three different modalities from different vendors (GE, Siemens and Canon) with vendor-specific image processing applied. The images were also extracted with neutral process parameters and processed with external image-processing software. Six experienced radiologists rated the quality and the similarity of the images with the original Siemens images. The externally processed GE images were rated of higher quality than the original GE images and more similar to the original Siemens images (p < 0.001). The opposite was obtained for the Canon images. The externally processed Siemens images were rated of similar quality as the original images. The present study indicates the possibility of using common external image processing to harmonise the appearance of images from different vendors, although the exposure parameters may need to be adjusted for individual vendors.
本研究的目的是评估使用通用外部图像处理来补偿不同供应商的数字X射线图像之间外观差异的情况。从不同供应商（GE、西门子和佳能）的三种不同模式中各收集了20张后前位胸部X光片，并应用了各供应商特定的图像处理。图像还采用中性处理参数提取，并使用外部图像处理软件进行处理。六位经验丰富的放射科医生对图像的质量以及与原始西门子图像的相似度进行了评级。经外部处理的GE图像质量评级高于原始GE图像，且与原始西门子图像更相似（p < 0.001）。佳能图像的情况则相反。经外部处理的西门子图像质量评级与原始图像相似。本研究表明，尽管可能需要针对个别供应商调整曝光参数，但使用通用外部图像处理来协调不同供应商图像外观是有可能的。
