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A diagnosis-supporting system for medical images using multimedia collaboration system.

一种利用多媒体协作系统的医学图像诊断支持系统。

基本信息

批准号：
08458087
负责人：
YAMAUCHI Kazunobu
金额：
$ 4.93万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

项目摘要

We analyzed three types of videoconferencing system to implement telemedicine.(1) The Internet videoconferencing is easy to use. Personal computers of notebook type with a modem card could perform videoconferencing by white board function. The quality of images will be sufficient for consultation but not for correct diagnosis. Transmitting relatively small graphic data of 15 KB or less in size will be practical. We needed a telephone line for collaboration.(2) The system design and experimental use of multimedia telemedicine system for moving images were reported. As a network, 100VG-any LAN was used in the Nagoya University Hospital and ISDN 64kbps for communication with Nagoya Second Red Cross Hospital. Cineangiocardiogram was repeatedly expressed on workstation CRT displays at different locations, and diagnostic collaboration on moving images was performed using a teleconference system. 100VG-any LAN worked well as a multimedia system for moving images. However, ISDN 64kbps was not suitable for a teleconferencing of moving images at the moment. Three lines of JSDNG4kbps will be necessary for teleconferencing of moving images.(3) Chest radiographs of 50 patients, including 25 with lung cancer were digitized at 100 dpi resolution and saved in the JPEG format at a low compression rate. Four respiratory specialists observed these images on a teleconference system display with 800^*600 pixels resolution. After one month, they observed original chest radiographs. ROC analysis was performed of the answers based on a 5-point confidence scale. The observer-specific As index values for the teleconference system ranged from 0.81 to 0.95, and the corresponding Az values for the conventional radiographs from 0.93 to 0.96. No differences were found between the teleconference system image and original images, showing that a video-teleconference system will be useful as a supplement to a diagnosis of chest X-ray films.

我们分析了三种类型的视频会议系统，以实现远程医疗。(1)互联网视频会议很容易使用。带有调制解调器卡的笔记本型个人计算机可以通过白色板功能进行视频会议。图像质量足以进行会诊，但不足以进行正确诊断。传输15 KB或更小的相对小的图形数据将是实用的。我们需要一条电话线来进行合作。(2)本文报道了一种基于运动图像的多媒体远程医疗系统的系统设计和实验应用。作为网络，名古屋大学医院使用100 VG-any LAN，与名古屋第二红十字医院通信使用ISDN 64 kbps。在不同位置的工作站CRT显示器上反复表达电影心血管造影，并使用电话会议系统对移动图像进行诊断协作。100 VG-any LAN作为移动图像的多媒体系统工作良好。然而，ISDN 64 kbps目前不适合移动图像的电话会议。三条JSDNG 4kbps的线路对于移动图像的远程会议是必要的。(3)包括25例肺癌患者在内的50例患者的胸片以100 dpi分辨率进行数字化，并以低压缩率以JPEG格式保存。四位呼吸科专家在800^*600像素分辨率的电话会议系统显示器上观察这些图像。一个月后，他们观察了原始胸片。基于5点置信量表对答案进行ROC分析。电话会议系统的特定的Az指数值范围为0.81至0.95，相应的Az值为0.93至0.96。电视会议系统图像和原始图像之间没有差异，表明电视会议系统将是有用的，作为胸部X线片诊断的补充。