Measuring body-cover vibration of vocal folds based on high frame rate ultrasonic imaging and high-speed video.

Qin, Xulei; Wu, Liang; Jiang, Hujie; Tang, Shanshan; Wang, Supin; Wan, Mingxi · IEEE Trans Biomed Eng · 2011

basic_science · Level V

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Abstract

Vibration of vocal folds is a body-cover layered vibration pattern due to the two-layer tissue structures of vocal folds. A method based on a synchronal imaging system is proposed in order to image and measure the body-cover vibration pattern of vocal folds. This imaging system contains two parts: high-frame-rate ultrasonic imaging part and high-speed video part, which can synchronously image the vibration of the body and cover layers a thigh speed. Then, image analysis methods are applied to measure the body-cover vibration of vocal folds from both recorded image sequences. We analyze characteristics of body-layer vibration based on the measurements from designed experiments. Moreover, these results meet simulations of a body-cover model.

Medical subject headings