Efficacy of teleradiology and telepathology in dentistry

远程放射学和远程病理学在牙科中的功效

• 批准号: 11671878
• 负责人: OKANO Tomohiro
• 金额: $ 2.05万
• 依托单位: Showa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11671878/
• 关键词: Telemedicine; teleradiology; telepathology; ISDN; videophone-conference; JPEC compression; ISDN; TV電話; 画像伝送; Teleradiology; Telemedicine; Telepathology; Teledentistry

The efficacy of the teleconference between radiology and pathology departments in dental field was evaluated in examining the time required to send images, the diagnostic quality of the images, and the handling of the systems. The management of the NTT-based videophone-conference system was also examined. The results were as follows : 1) The quality of the transmitted CT, MRI and plain radiologic images in JPEG 20 : 1 lossy compression would be accepted in routine diagnostic tasks. The 14 pathologic images examined were also accepted in quality in lossless compression. 2) The radiologic image data ranging from 3,000 to 10,000MB were, on average, required 2 min in 20 : 1 lossy and 30 min in lossless compression. More time was required of the pathologic image data. As a result, the real-time teleconference would not be realistic in such circumstances. On the other hand, 3) the videophone-teleconference system was evaluated to be promising because the images could be sent and observed immediately each other. It helped to discuss the case on both sides. 4) the quality of the pathologic images was, however, far inferior to the original, especially in low-and middle-magnification. All of the radiologic images were accepted even in this system. 5) Since the lower quality of the transmitted images was somewhat compensated with the discussion of both sides, the proposed videophone-teleconference system would be accepted in the real situation. 6) Although the usage of the ISDN64 is advantageous because it is available through all over Japan, the infrastructure of the transmission technology would be required in to develope more-efficient teleconference system using radiologic and pathologic diagnostic images.

通过检查发送图像所需的时间、图像的诊断质量以及系统的处理来评估牙科领域放射科和病理科之间的电话会议的效果。还检查了基于 NTT 的视频电话会议系统的管理。结果如下： 1) JPEG 20:1 有损压缩传输的 CT、MRI 和普通放射图像的质量将在常规诊断任务中得到接受。检查的 14 个病理图像的无损压缩质量也被接受。 2) 3,000至10,000MB的放射图像数据，20:1有损压缩平均需要2分钟，无损压缩平均需要30分钟。病理图像数据需要更多时间。因此，在这种情况下实时电话会议是不现实的。另一方面，3）可视电话电话会议系统被认为是有前途的，因为图像可以立即相互发送和观察。这有助于双方讨论案件。 4）然而，病理图像的质量远不如原始图像，特别是在低倍和中倍放大倍率下。即使在该系统中，所有放射图像也被接受。 5) 由于传输图像的较低质量通过双方的讨论得到了一定程度的补偿，因此所提出的可视电话电话会议系统在实际情况下将被接受。 6) 虽然 ISDN64 的使用是有利的，因为它可以在日本全国范围内使用，但需要传输技术的基础设施来开发使用放射学和病理学诊断图像的更有效的电话会议系统。