Evaluation of a Noise Reduction Procedure for Chest Radiography
Evaluation of a Noise Reduction Procedure for Chest Radiography
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发表时间：
2013-11
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通讯作者：
Ryohei Fukui;R. Ishii;K. Kodani;Y. Kanasaki;H. Suyama;Masanari Watanabe;M. Nakamoto;Y. Fukuoka
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作者：
Ryohei Fukui;R. Ishii;K. Kodani;Y. Kanasaki;H. Suyama;Masanari Watanabe;M. Nakamoto;Y. Fukuoka
背景本研究的目的是评价降噪程序（NRP）的有效性，NRP是胸部X线摄影新图像处理中的一个功能。方法采用佳能CXDI-50 G便携式数字化X线摄影系统进行X线检测。用噪声功率谱分析图像噪声，用Burger体模评价密度分辨率。通过胸部体模图像和临床胸片评价NRP的有效性。我们采用放射卫生局的方法进行胸部图像评分，同时进行我们的观察。结果与传统图像处理（CIP）相比，使用NRP的图像质量得到了改善。图像质量的结果表明，通过使用NRP，可以实现高密度分辨率，从而可以在低辐射剂量下进行胸部X线摄影检查。评分显著高于CIP。结论在本研究中，NRP的使用导致了很高的评价，因此我们能够证实NRP在临床胸部X线摄影中的有用性。
BACKGROUND The aim of this study was to evaluate the usefulness of noise reduction procedure (NRP), a function in the new image processing for chest radiography. METHODS A CXDI-50G Portable Digital Radiography System (Canon) was used for X-ray detection. Image noise was analyzed with a noise power spectrum (NPS) and a burger phantom was used for evaluation of density resolution. The usefulness of NRP was evaluated by chest phantom images and clinical chest radiography. We employed the Bureau of Radiological Health Method for scoring chest images while carrying out our observations. RESULTS NPS through the use of NRP was improved compared with conventional image processing (CIP). The results in image quality showed high-density resolution through the use of NRP, so that chest radiography examination can be performed with a low dose of radiation. Scores were significantly higher than for CIP. CONCLUSION In this study, use of NRP led to a high evaluation in these so we are able to confirm the usefulness of NRP for clinical chest radiography.