救护车载移动CT头部扫描在移动医疗中的应用

目的研究野外环境下救护车载16层移动CT头部扫描技术的可行性、安全性及成像质量，建立颅脑伤病移动医疗救治新模式。 方法利用陆军总医院附属八一脑科医院常用救护车，采用特制固定装置将移动CT与车厢底面的钢板链接固定，观察救护车载在高速和乡村公路行驶过程中，移动CT的稳定性及安全性。选取北京市怀柔区杨宋镇社区卫生服务中心于2017年5月22日纳入的35例受检者，在野外环境进行车载移动CT头部扫描检查，记录检查时间、分析成像质量及相关性能指标。 结果救护车在高速公路运行50 km和乡村公路运行7 km，检测CT固定可靠、安全。野外环境下，在救护车上连续进行头部移动CT检查35例，累计耗时141 min，例均耗时4.03 min。CT断层成像清晰，无震动伪影，与临床诊断完全相符合。CT扫描显示脑损伤恢复期3例，基底节区出血后脑软化4例，陈旧性脑梗塞合并脑萎缩28例。检测扫描辐射剂量为40.43 mGy，个人功耗为0.29 kW/h。 结论野外环境下救护车载16层移动CT的固定链接技术可靠，头部扫描断层成像质量良好、性能稳定，扫描时间短，诊断精准、使用便捷，建立了移动医疗新模式。

Ambulance-mounted mobile CT scanner used for head scanning in M-Health application

ObjectiveTo study the feasibility, safety and image quality of 16-slice mobile CT for head scanning in ambush vehicle, and to establish a new model of mobile medical application for traumatic brain injury and cerebrovascular disease. MethodsBy way of a general ambulance in the hospital, the mobile CT was fixed to the stainless steel plate. The stability and safety of the mobile CT were observed during the highway and rural road driving. The scanning time, imaging quality and performance indicators were recorded during the mobile CT for head scanning loaded with vehicle. ResultsAmbulance in the highway with 50 km and rural road with 7 km, the mobile CT revealed on higher reliability and safety. In the wild environment, 35 cases of continuous head CT scanning were performed on the ambulance. The cumulative time was 141 min, and the average time was 4.03 min. The tomography of mobile CT is clear, no vibration artifacts, satisfied with clinical diagnostic criteria. CT scan showed that the brain injury in 3 cases, basal ganglia cerebral hemorrhage with necrosis in 4 cases, cerebral infarction with brain atrophy in 28 cases. The data showed that The scanning radiation dose was 40.43 mGy and personal power consumption was 0.29 kW/h. ConclusionThe technology of 16-slice of mobile CT in the ambush is reliable. The quality of head scan tomography of mobile CT is clear and the performance is fine. The scanning was a short time and convenient. A new mobile medical model was created for brain disease.