The Correlation between GRBAS Scales and MDVP Parameters on the Pathologic Voices of the Patients with Vocal Polyps

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J Korean Soc Laryngol Phoniatr Logop > Volume 10(2); 1999 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 1999;10(2): 154-163.

성대 폴립 환자를 대상으로 한 GRBAS 척도와 MDVP 측정치 간의 상관관계 연구

표화영¹, 최성희¹, 임성은¹, 심현섭², 최홍식¹, 김광문¹

¹연세대학교 의과대학 이비인후과학교실 음성언어의학연구소²이화여자대학교 특수교육학과 언어병리학 협동과정

The Correlation between GRBAS Scales and MDVP Parameters on the Pathologic Voices of the Patients with Vocal Polyps

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ABSTRACT

GRBAS scale, the tool fir the perceptual evaluation of voice, demands the experience of judges, and MDVP parameters of CSL, the tool for the objective measurements of voice quality demands the exact interpretation of the analyzed results. The two tools should be used as compensatory evaluation methods, so the experimental study was performed to investigate the correlation between GRBAS scales and MDVP parameters by using the pathologic voice of the 30 patients with vocal polyps, and to know the significant MDVP parameters which the inexperienced GRBAS scale judges should attend to. The 30 subjects voices, saved in MDVP of CSL were analyzed by its own analysis program, and three experienced voice therapists judged the same voices by using GRBAS scales. The correlations between them were analyzed by Spearman Rank Correlation Coefficient. As results, among the 29 MDVP parameters, 22 parameters showed statistically significant correlation with Grade(G) scale(p＜0.05). And it was found that Roughness(R) scale showed significant correlation with 18 parameters, Breathiness(B) scale with 17 parameters, Strain(S) scale with 12 parameters. In Asthenicity(A) scale, no parameter showed significant correlation. On the whole, significantly high correlation were found in the parameters related with pitch ind amplitude perturbation, especially, the amplitude perturbation.

KEY WORDS： GRBAS scale;MDVP;Voice quality;Vocal polyp;