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J Korean Soc Laryngol Phoniatr Logop > Volume 28(2); 2017 > Article
Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2017;28(2): 84-88.
doi: https://doi.org/10.22469/jkslp.2017.28.2.84
com일측성 성대마비 환자 평가에서 Cepstral Peak Prominence의 유용성
이창윤1, 정희석2, 손희영1
1동남권원자력의학원 이비인후과학교실
2양산부산대학교병원 영상의학과
Usefulness of Cepstral Peak Prominence (CPP) in Unilateral Vocal Fold Paralysis Dysphonia Evaluation
Chang-Yoon Lee1, Hee Seok Jeong2, Hee Young Son1
1Department of Otorhinolaryngology, Dongnam Institute of Radiological & Medical Sciences, Busan, Korea
2Pusan National University Yangsan Hospital, Yangsan, Korea
Correspondence  Hee Young Son ,Tel: (051) 720-5222, Fax: (051) 720-5914, Email: hyson79@gmail.com
Received: 12 May 2017; Revised: June 2, 2017   Accepted: 7 June 2017.  Published online: 31 December 2017.
Background and Objectives
The purpose of this study was to compare the usefulness of Cepstral peak prominence (CPP) with parameter of Multiple Dimensional Voice Program (MDVP) in evaluating unilateral vocal fold paraylsis patients with subjective voice impairment.
Materials and Methods
From July 2014 to August 2016, 37 patients with unilateral vocal fold paralysis who had been diagnosed with unilateral vocal fold paralysis and had received two or more voice tests before and after the diagnosis were evaluated for maximum phonation time (MPT), MDVP and CPP. Respectively. Voice tests were performed with short vowel /a/ and paragraph reading.
The CPP-a (CPP with vowel /a/) and CPP-s (CPP with paragraph reading) of the Cepstrum were statistically negatively correlated with G, R, B, and A before the voice therapy. Jitter, Shimmer, and NHR of MDVP were positively correlated with G, R, B. Jitter, Shimmer, and NHR of the MDVP were significantly correlated with the Cepstrum index. G, B, A and CPP-a and CPP-s showed a statistically significant negative correlation and a somewhat higher correlation coefficient between 0.5 and 0.78. On the other hand, in MDVP index, there was a positive correlation with G and B only with Jitter of 0.4.
CPP can be an important evaluation tool in the evaluation of speech in the unilateral vocal cord paralysis when speech energy changes or the cycle is not constant during speech.
KEY WORDS: CepstrumAcoustic analysisVocal fold paralysis.
중심 단어: 성대마비켑스트럼발성장애.
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