摘要
目的:将气动式人工喉应用于全喉切除患者,并采用计算机声学测试方法对该人工喉声学特性进行了分析评价,旨在为客观评价人工喉的发音功能及技术改进提供指标参数。方法:选择2002-01/2007-10中国医科大学附属第一医院喉癌全喉切除气管造瘘患者60例。应用气动式人工喉并经过发音训练,3个月后利用计算机进行声学(声时、声强、语图等)效果的评价。①声时及一口气音节数:Ⅰ级:声时10s以上;一口气音节数10个以上;发音清晰,整句表达流利,可听距离>8m。Ⅱ级:声时6～9s;一口气音节数6～9个;发音清晰,整句表达较顺利,可听距离5m。Ⅲ级:声时5s以下;一口气音节数5个以下;发音基本清楚,表达能力尚可,可听距离3m。②最大声强:发声强度达80dB以上为正常。③语图:正常元音语图特点为:谐波呈正弦,均匀,规律的波纹状,第1、2共振峰带明显而清楚,4000Hz以上的高频区噪声成分极少。结果:60例患者均进入结果分析。①经专人指导训练,60例患者39例达Ⅰ级,14例为Ⅱ级,仅7例为Ⅲ级。②最大声强:平均85.5dB。③语图特征基本同健康人;低、中频区声能较集中,高频区声能逐渐降低。结论:该气动式人工喉具有操作简单、语音清晰,发声强度、音调、音色等均接近正常人,值得临床推广使用。
AIM： To assess the sonics features of pneumatic artificial larynx after total laryngectomy by computer to provide reference parameters for the objective evaluation of pronunciation function and technique modification of artificial larynx. METHODS： Sixty cases of larynx cancer treated by total laryngectomy in the First Affiliated Hospital of China Medical University between January 2002 and October 2007 were selected. Pneumatic artificial larynx was applied and assessed by computer after pronunciation training for 3 months （phonation time, sound intensity, language diagram, etc.）. （1）Phonation time and syllable-timing： Class Ⅰ： phonation time 〉10 s and syllables 〉 10; clear pronunciation, fluent expression, audible distance 〉 8 m. Class Ⅱ： phonation time 6-9 s, and 6-9 syllables; clear pronunciation, fluent expression, audible distance 5 m. Class Ⅲ： phonation time 〈 5 s and syllables 〈 5; clear pronunciation, good expression, audible distance 3 m. （2）Maximum sound intensity 〉 80 dB was regarded as normal. （3）Language diagram： Normal vowels were characterized by sine harmonic wave, even and regular flow mark, clear first and second resonance peaks and little noise in high frequency area above 4 000 Hz. RESULTS： All 60 patients were included in final analysis. （1）After professional instruction and training, 39 cases reached the class Ⅰ, 14 reached class Ⅱ, and only 7 was at class Ⅲ. （2）The maximum mean sound intensity was 85.5 dB. （3）The language diagram characteristics of the patients was similar to healthy persons. The sound energy predominantly located at low and medium frequency areas, and gradually decreased in high frequency area. CONCLUSION： The pneumatic artificial larynx is characterized by simple operation, clear speech, nearly normal sound intensity, tone, and tone color. It is worthy of extensive application in clinic.
出处
《中国组织工程研究与临床康复》
CAS
CSCD
北大核心
2008年第13期2448-2450,共3页
Journal of Clinical Rehabilitative Tissue Engineering Research
