Objective To analyze the voice parameters of chronic laryngitis,vocal nodule and vocal polyp,and to evaluate the significance of these parameters in the diagnosis of the involved disease.

• 目的探讨慢性喉炎、声带小结、声带息肉病人嗓音声学参数的变化,评价嗓音声学参数对喉良性病变的诊断意义。