目的 研究智能吞咽障碍评测与训练系统(digital accelerometry for swallow imaging，DASI^TM)对吞咽功能评估的重测信度，为临床应用提供依据。方法 33例志愿者参与研究，其中老年人22例，均利用DASI^TM进行4次吞咽口水的测试，根据DASI^TM系统自带软件分析结果，记录4次测试的吞咽波峰、吞咽启动时间和吞咽持续时间平均值，并于1周内重复测试1次。将其数据利用SPSS17.0软件进行组内相关系数(ICC) 检验分析。结果 全部受试者的吞咽波峰和持续时间均具有极好的重测信度(ICC=0.767～0.914);全部受试者的吞咽启动时间具有中等程度的重测信度(ICC=0.410，)，而老年受试者的启动时间重测信度较差(ICC为0.318)。结论 DASI^TM在吞咽波峰和持续时间上有极好的重测信度，在吞咽启动时间上重测信度为中等，该设备无创、便携、价廉，可以用于吞咽障碍患者的临床评估和治疗。

Objective To determine the test-retest reliability of swallowing function assessment by digital accelerometry for swallowing imaging (DASI^TM), specially for the elderly. Methods Thinty-three volunteers were assessed dry swallowing 4 times with DASI^TM, get the mean data of peak of swallowing (PS), onset of swallowing (OS) and duration of swallowing (DS) with the Software providing imaging and physiology measurements. Retest was performed in a week. Statistics using software SPSS 17.0 obtained the intraclass correlation coefficient (ICC) of AS, OS and DS. Results The ICC of AS and DS were 0.767-0.914 ( P< 0.01), had very good test-retest reliability. The all volunteers’ ICC of OS was 0.410(P>0.05), had medium test-retest reliability. The OS’ test-retest reliability in the elderly was poor. Conclusions DASI^TM has good test-retest reliability in swallowing assessment, it is non-invasive, portable, cheap, and feasible for most dysphagia patients.