Improvement of a HTML-based teaching file for image diagnosis

为了丰富和高效地进行影像诊断教学，构建了基于html的教学文件。本研究从以下几个方面对教学档案系统进行了改进。安装中间PC机。提高网络安全防范网络攻击。在教学文件服务器和医学影像服务器之间安装中间PC机。图像服务器中的医学图像通过DICOM查询/检索协议在线导入到中间PC机。这些图像可以通过关键字进行搜索，如ID、患者姓名、研究日期、成像方式。获取图像后，将附带的患者信息剔除，转换为TIFF或JPEG格式，导出为患者信息。液晶显示器的评估。教学文件中使用的8位灰度图像在某些笔记本电脑的液晶显示器上显示时存在画质不足的问题。我们评估了几款公益LCD的质量，Apple^<TM>和Samsung^<TM>产品的质量足以满足这些图像。扫描图像质量的考虑。为了使该教学文件更有价值，需要提高压缩图像的质量，因此，我们正在考虑对原始扫描图像的改进。将电影文件导入教学文件。评价超声影像文件的质量。将DV摄像机用s-video线连接到超声机上，并以MPEG-2格式导出到PC机上，可获得最佳画质。但是，由于文件太大，无法在线浏览，因此正在考虑采用MPEG-1格式和/或Sorenson压缩。

An HTML-based teaching file had been constructed to enrich and make efficient the education for image diagnosis. In this research, the teaching file system was improved in the following way.1. Installation of an intermediate PC. To inprove the security from the attack via internet., intermediate PC was installed between the teaching- file server and the medical image server. Medical images in the image server were imported into intermediate PC via online by DICOM query/retrieve protocols. These images could be searched by keywords, such as ID, patient name, study date, imaging modalities. Once the images had been obtained, attached patients' information was eliminated and converted into TIFF or JPEG format, then exported to the information of the patients.2. Evaluation of the LCD monitors. Some 8-bit grayscale images which were used in the teaching file proposed insufficient quality when displayed in some LCD monitor of the notebook PCs. We evaluated the quality of several public welfare LCD, Apple^<TM> and Samsung^<TM> products presented enough quality for these images.4. Consideration of the scanning image quality. To make this teaching file more valuable, improvement of compressed image quality is needed, Therefore, inprovement of original scanned is under consideration.3. Introduction of a movie file into teaching file. Quality of ultrasound movie image files were evaluated. The best quality was obtained when the DV camera was connected to the ultrasound machine with s-video cable, and exported to PC with MPEG-2 format. However, as the file size was too huge to browse by online, application of MPEG-1 format and/or Sorenson compression is under consideration.