和平方舟号医院船16排移动CT头部扫描报告

目的检测16排移动CT在和平方舟号医院船上对健康志愿者进行头部轴位平扫的成像质量、电磁干扰影响以及无线信息传输的稳定性。 方法随机选择96例健康志愿者,分为航行组和停泊组。航行组58例,在医院船正常航行状态下进行头部轴位平扫;停泊组38例,在医院船航行结束返回码头停泊状态进行头部轴位平扫成像。比较2组头部轴向扫描的成像质量、电磁干扰影响,以及无线信息传输的稳定性。 结果16排移动CT与医院船上大功率仪器之间相互无电磁干扰,影像信息传输系统性能稳定。在医院船航行和停泊状态下骨窗位成像质量稳定,显示颅骨、眼眶、鼻蝶窦等骨性结构良好;头窗位成像质量良好,显示眼球及视神经、脑干、脑皮质及沟回等软组织结构清晰。2组受检者在颅底扫描时,一部分层面发生线条状运动伪影,航行组发生运动伪影的比率（15.52%）高于停泊组（5.26%）,但2组间差异无统计学意义（P=0.191）,对临床诊断无明显影响。 结论16排移动CT装配在医院船上进行头部平扫,成像质量优良、性能可靠、使用便捷,移动CT与医院船之间无电磁干扰,无线信息传输稳定性好。

Head scanning with the 16-row mobile CT on the Navy Hospital Ship Peace Ark

ObjectiveTo test the image quality, electromagnetic interference and the stability and safety of wireless information transmission on head axial scanning of healthy volunteers by 16-row mobile CT on the Hospital Ship Peace Ark. MethodsA total of 96 cases of healthy volunteers were randomly divided into navigation group and berthing group. In the navigation group, 58 cases were scanned in the axial position of the head under the normal navigation condition of the hospital ship, while in the berthing group, 38 cases were scanned in the axial position of the head after the hospital ship returned to the berthing condition of the wharf. The image quality, electromagnetic interference and the stability of wireless information transmission in both groups were compared. ResultsThere was no electromagnetic interference between the 16-row mobile CT and the high-power instruments on the Hospital Ship Peace Ark, and the performance of the image information transmission system was stable. In the condition of sailing and berthing groups of the Navy Hospital Ship Peace Ark, the imaging quality of the bone window was good with the 16-row mobile CT scanning, showing good bone structure of skull, orbit, nasosphenoid sinus and so on. The imaging quality of cephalic windows was good with the 16-row mobile CT scanning, showing clear structures of soft tissues such as eyeball and optic nerve, brain stem, cerebral cortex, sulcus and so on. Although the subjects in 2 groups had a few of linear motion artifacts at the skull base, it showed the incidence rates in the sailing group with 15.52% and the berthing group with 5.26%, there was no significant difference between the two groups (P=0.191), which has no significant effect on clinical diagnosis. ConclusionThe 16-row mobile CT was installed on the Hospital Ship Peace Ark for head scanning. The 16-row mobile CT was of good imaging quality, reliable performance and convenient to use in this trial. There was no electromagnetic interference between the 16-row mobile CT and the Hospital Ship Peace Ark, and the wireless information transmission worked stably in the trial.