Fuhrmann R A, Diedrich P R
Department of Orthodontics, University of Aachen, Germany.
Dentomaxillofac Radiol. 1994 Nov;23(4):211-5. doi: 10.1259/dmfr.23.4.7835526.
The aim of the present study was to evaluate the ability of video-based dynamic B-mode ultrasound in differentiating normal from abnormal swallowing. Tongue position at rest and during the oral phase of swallowing was examined with a 5 MHz transducer placed under the chin in 60 subjects aged between 6 and 33 years. 40 patients with abnormal tongue movement or swallowing were compared with a control group of 20 adults with Angle Class I occlusion without any signs of dysfunctional tongue activity. The ultrasound sequences were videotaped and the movement of the tongue in swallowing a 2 ml water bolus analysed qualitatively. An abnormal swallowing pattern was demonstrated in 19 patients. Those with an Angle Class III malocclusion had the highest rate of abnormal swallowing. Video-based ultrasound scanning in the sagittal plane seems to be a useful screening method for the diagnosis of poor tongue coordination during swallowing, especially for the imaging of tongue thrust in children.
本研究的目的是评估基于视频的动态B型超声区分正常吞咽与异常吞咽的能力。使用5兆赫的换能器置于60名年龄在6至33岁受试者的下巴下方，检查其静息时以及吞咽口腔期的舌位。将40名存在异常舌运动或吞咽的患者与20名Angle I类咬合正常且无任何舌功能障碍迹象的成年对照组进行比较。对超声序列进行录像，并定性分析吞咽2毫升水团时舌的运动。19名患者表现出异常吞咽模式。Angle III类错牙合患者的异常吞咽发生率最高。矢状面基于视频的超声扫描似乎是诊断吞咽时舌协调不良的一种有用的筛查方法，尤其适用于儿童舌前伸的成像。
