Method for detection of aspiration based on B-mode video ultrasonography
- 10 April 2014
- journal article
- Published by Springer Science and Business Media LLC in Radiological Physics and Technology
- Vol. 7 (2), 290-295
- https://doi.org/10.1007/s12194-014-0264-3
Abstract
In this study, we aimed to develop a new method for detection of aspiration based on B-mode video ultrasonography and to evaluate its performance. To detect aspirated boluses by B-mode video ultrasonography in patients with dysphagia, we placed a linear array transducer above the thyroid cartilage and observed the area around the vocal folds. Forty-two ultrasonographic measurements were obtained from 17 patients with dysphagia who also underwent videofluoroscopy or videoendoscopy measurements at the same time. Aspirated boluses were observed in B-mode video ultrasonographic images as hyperechoic, long, narrow objects that passed through the vocal folds beneath the anterior wall of the trachea, with movement different from that of the surrounding structure. The sensitivity of aspiration detection was 0.64, and the specificity was 0.84. This newly developed detection method will enable patients with dysphagia to receive appropriate daily swallowing care.Keywords
This publication has 19 references indexed in Scilit:
- Ultrasonographic evaluation of geniohyoid muscle movement during swallowing: a study on healthy adults of various agesRadiological Physics and Technology, 2011
- Kinematic Analysis of Dysphagia: Significant Parameters of Aspiration Related to Bolus ViscosityDysphagia, 2011
- Sonographic assessment of hyoid bone movement during swallowing: a study of normal adults with advancing ageRadiological Physics and Technology, 2010
- High-Frequency Sonographic Measurements of True and False Vocal CordsJournal of Ultrasound in Medicine, 2010
- Silent Aspiration: What Do We Know?Dysphagia, 2005
- Identification of a simple screening tool for dysphagia in patients with stroke using factor analysis of multiple dysphagia variablesJournal of Rehabilitation Medicine, 2005
- Sonographic analysis of laryngeal elevation during swallowingZeitschrift für Neurologie, 2003
- Incidence and Patient Characteristics Associated with Silent Aspiration in the Acute Care SettingDysphagia, 1999
- Evaluation of Swallowing Safety With Fiberoptic Endoscope: Comparison With Videofluoroscopic TechniqueThe Laryngoscope, 1997
- High incidence of silent aspiration in elderly patients with community-acquired pneumonia.American Journal of Respiratory and Critical Care Medicine, 1994