Peng C L, Jost-Brinkmann P G, Miethke R R
Graduate Institute of Oral Rehabilitation, Taipei Medical College, Taiwan.
Acad Radiol. 1996 Mar;3(3):239-44. doi: 10.1016/s1076-6332(96)80449-1.
We describe the cushion scanning technique (CST), which solves common difficulties encountered during ultrasound investigations of swallowing. These problems arise when the transducer is held in direct contact with the submental area. Some of these problems include movements of the ultrasound transducer during swallowing and compression of the submental region, which causes abnormal swallowing patterns.
To compare ultrasound images produced with the conventional hand-held transducer-skin coupling scanning technique with the CST, we studied five participants with no clinical signs of tongue dysfunction. All tongue movements were recorded by real-time B+M-mode sonography.
Images produced with the hand-held transducer were found to be unstable because the transducer moved during swallowing, thereby changing the scanning section. By contrast, the transducer and the participant's head remained in a constant position throughout the CST trial. There was no obvious compression of the submental muscles.
The CST allows for a better intraindividual reproducibility of the swallowing pattern and for a more standardized and objective ultrasound examination than the hand-held transducer-skin coupling scanning technique.
我们描述了缓冲扫描技术（CST），该技术解决了吞咽超声检查过程中遇到的常见难题。当换能器直接接触颏下区域时就会出现这些问题。其中一些问题包括吞咽过程中超声换能器的移动以及颏下区域的受压，这会导致异常的吞咽模式。
为了将传统手持换能器与皮肤耦合扫描技术所产生的超声图像与缓冲扫描技术进行比较，我们研究了5名无舌功能障碍临床体征的参与者。所有舌部运动均通过实时B + M模式超声检查进行记录。
发现手持换能器所产生的图像不稳定，因为换能器在吞咽过程中移动，从而改变了扫描断面。相比之下，在整个缓冲扫描技术试验过程中，换能器和参与者的头部保持在固定位置。颏下肌肉没有明显受压。
与手持换能器与皮肤耦合扫描技术相比，缓冲扫描技术能够实现更好的个体内吞咽模式重复性，以及更标准化、客观的超声检查。
