Ultrasonographic assessment of the swallowing movement.

为了分析口腔期的吞咽运动，使用SSD 650 CL（ALOKA）或Logiq 700（GE横河）获得舌背的矢状和冠状超声图像以及咽侧壁的轴向图像。使用Finescope 300、DCW-30 A（Toshiba Medical Co.）使用VideoCanvas（罗兰）和DSR-20、DSR-V10、GV-D900（SONY）将超声图、视频荧光图和声音记录为单个数字图像数据。使用Premiere（Adobe）将数据作为电影数据输入到新购买的个人计算机（Power Mac G4，Apple）中。利用NIH图像分析舌运动的时间因素和形态特征。因此，建立了最佳的超声检查方法，虽然视频荧光造影可以显示叠加图像，但超声造影只能显示吞咽过程中舌的断层图像。因此，我们认为，至少有两个图像可能是必要的诊断吞咽障碍的矢状和冠状超声。关于咽侧壁的轴向图像，需要进一步分析超声评估。由于吞咽评估应在康复或疾病进展的每一步频繁进行，因此有必要通过视频X线摄影减少患者的辐射暴露。为此，使用超声检查是有效的。根据本研究的结果，可以得出结论，超声系统可以部分取代视频荧光造影。

In order to analyze the swallowing movement in the oral period, the sagittal and coronal ultrasonograms of the dorsum of tongue and the axial images of the lateral wall of pharynx were obtained using SSD650CL (ALOKA) or Logiq700 (GE-Yokogawa). Videofluorography was simultaneously performed using Finescope 300, DCW-30A (Toshiba Medical Co.) and a newly- purchased mobile VF chair (Tomomi Studio, Inc).The ultrasonograms, videofluorograms, and sound were recorded as single digital image data using VideoCanvas (Roland) and DSR-20, DSR-V10, GV-D900 (SONY). The data were input into a newly-purchased personal computer (Power Mac G4, Apple) as movie data using Premiere (Adobe). The timefactor and morphologic characteristic of the tongue movement were analyzed on the ultrasonographic and videofluorographic images using NIH image. Thus, the optimal methods for ultrasonography were established.Although the videofluorography could depict the superimposed image, the ultrasonogragraphy could show only sectional images of the tongue during swallowing. Therefore, we considered that at least two images might be necessary to diagnose swallowing disorders by sagittal and coronal ultrasonography. Regarding the axial image of the lateral pharyngeal wall, further analysis were required for ultrasonographic assessment.Because swallowing assessment should be performed frequently at every step of rehabilitation or progression of illness, it is necessary to reduce the patient's radiation exposure by videofluorography. For this purpose, it was effective to use the ultrasonography. On the basis of the results of this study, it was concluded that the ultrasonography system could partially replace the videofluorography.