title: [EGG and acoustic test for the diagnosis of laryngeal diseases].
abstract: OBJECTIVE
  To explore the relationship between electroglottography/acoustic test parameter and disease diagnosis.
  
  
  METHODS
  3.0 software by Dr. Speech was used to test synchronically the electroglottography and acoustic test parameter of 503 cases so as to make a statistical analysis and comparison.
  
  
  RESULTS
  The shimmer was similar with the jitter on the inspection of polyp of vocal cord and vocal nodules, but the shimmer was more susceptive than the jitter. Compared with the healthy group, mean F0, jitter and shimmer of polyp of vocal cord increased, while the Harmonic-to-Noise decreased, so did the vocal nodules and carcinoma of larynx. Compared with the normal, the contact index of carcinoma of larynx increased, but the contact quotient remained on the same level.
  
  
  CONCLUSIONS
  EGG, acoustic test number comparison and wave change provide an objective quantized index for the diagnosis of laryngeal diseases.
authors.affiliation: Department of Otolaryngology, Drum Tower Hospital Affiliated to Medical College of Nanjing University.
authors.forename: Jianqun
authors.initials: J
authors.lastname: Wang
authors.forename: Xia
authors.initials: X
authors.lastname: Gao
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Feng
authors.initials: F
authors.lastname: Chen
authors.forename: Ye
authors.initials: Y
authors.lastname: Yang
authors.forename: Yuhong
authors.initials: Y
authors.lastname: Hu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004568:Electrodiagnosis; D005260:Female; D005931:Glottis / Q000503:physiopathology*; D006801:Humans; D007818:Laryngeal Diseases / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D011127:Polyps / Q000175:diagnosis*; D013061:Speech Acoustics; D014827:Vocal Cords / Q000473:pathology*; D014833:Voice Quality