Zhou Zheng
Image Processing & Informatics (IPI) Laboratory, Radiology Department, University of Southern California, Marina del Rey, CA 90292, USA.
Comput Med Imaging Graph. 2007 Jun-Jul;31(4-5):353-60. doi: 10.1016/j.compmedimag.2007.02.013. Epub 2007 Mar 26.
Computer aided diagnosis/detection (CAD) has been extensively used in mammography, chest, and three-dimensional (3D) CT lung imaging for clinical decision support over last 5-6 years. Recent trend is to integrate CAD applications with a PACS so that CAD results can be reviewed by most physicians for diagnosis. However, data security issue arises when a CAD application is integrated with a PACS. In this paper, we present a lossless digital signature embedding (LDSE) method for assuring the integrity of images used by the CAD and new images and results generated by the CAD application. Our experimental results show that the method is effective for assuring the integrity of CAD images. Combining this method with traditional one-dimensional digital signature technique for protecting CAD results, we provide a complete integrity assurance solution for a CAD application integrated with a PACS.
在过去的五到六年里，计算机辅助诊断/检测（CAD）已广泛应用于乳腺X光检查、胸部以及三维（3D）CT肺部成像，以提供临床决策支持。当前的趋势是将CAD应用与PACS集成，以便大多数医生能够查看CAD结果以进行诊断。然而，当CAD应用与PACS集成时，数据安全问题就会出现。在本文中，我们提出了一种无损数字签名嵌入（LDSE）方法，以确保CAD使用的图像以及CAD应用生成的新图像和结果的完整性。我们的实验结果表明，该方法对于确保CAD图像的完整性是有效的。将此方法与传统的一维数字签名技术相结合以保护CAD结果，我们为与PACS集成的CAD应用提供了一个完整的完整性保证解决方案。
