Department of Biomedical Engineering, Seoul National University Hospital, 28 Yongon Dong, Chongno Gu, Seoul 110-744, Korea.
J Telemed Telecare. 2009;15(8):404-8. doi: 10.1258/jtt.2009.090504.
We developed a hands-free portable device which can provide two-way, real-time audio and video communication between hospital doctors and emergency medical technicians (EMTs) providing pre-hospital care. The device was based on an ultra mobile PC with a camera, a microphone/earphone set and a WIBRO modem for wireless Internet connection at an average data transmission rate of 1 Mbit/s. Feasibility tests were conducted in 55 real emergency situations over a period of three months at five different Rescue Centres in Seoul. Successful communication between an EMT and a doctor was achieved in 46 cases (84%). The device showed acceptable performance in terms of audio/video transmission time delays and maximum transmitted video frame rates, both outdoors, inside a building and in a moving vehicle at 70 km/h. Eight control centre staff and 11 EMTs who used the device completed a questionnaire. Despite acceptable basic performance, the device was found to be limited in terms of the contribution it made to the medical control of EMTs. However, improvements in device performance should produce higher quality pre-hospital emergency medical care in the future.
我们开发了一种免提便携式设备，可在医院医生和提供院前护理的急救医疗技术员（EMT）之间提供双向实时音频和视频通信。该设备基于带有摄像头、麦克风/耳机和 WIBRO 调制解调器的超便携 PC，用于以平均 1 Mbit/s 的数据传输速率进行无线 Internet 连接。在首尔的五个不同救援中心进行了为期三个月的 55 次真实紧急情况的可行性测试。在 46 例（84％）情况下成功实现了 EMT 和医生之间的通信。该设备在音频/视频传输延迟和最大传输视频帧率方面表现出可接受的性能，无论是在室外、建筑物内还是在以 70 公里/小时的速度行驶的车辆中。使用该设备的八名控制中心工作人员和 11 名 EMT 完成了一份问卷。尽管基本性能可接受，但该设备在对 EMT 医疗控制方面的贡献方面存在局限性。然而，设备性能的提高应该会在未来提供更高质量的院前急救医疗服务。
