Application of a Computer Vision Tool for Automated Glottic Tracking to Vocal Fold Paralysis Patients.
Otolaryngol Head Neck Surg
; 165(4): 556-562, 2021 10.
Article
in En
| MEDLINE
| ID: mdl-33588618
ABSTRACT
OBJECTIVES:
(1) Demonstrate true vocal fold (TVF) tracking software (AGATI [Automated Glottic Action Tracking by artificial Intelligence]) as a quantitative assessment of unilateral vocal fold paralysis (UVFP) in a large patient cohort. (2) Correlate patient-reported metrics with AGATI measurements of TVF anterior glottic angles, before and after procedural intervention. STUDYDESIGN:
Retrospective cohort study.SETTING:
Academic medical center.METHODS:
AGATI was used to analyze videolaryngoscopy from healthy adults (n = 72) and patients with UVFP (n = 70). Minimum, 3rd percentile, 97th percentile, and maximum anterior glottic angles (AGAs) were computed for each patient. In patients with UVFP, patient-reported outcomes (Voice Handicap Index 10, Dyspnea Index, and Eating Assessment Tool 10) were assessed, before and after procedural intervention (injection or medialization laryngoplasty). A receiver operating characteristic curve for the logistic fit of paralysis vs control group was used to determine AGA cutoff values for defining UVFP.RESULTS:
Mean (SD) 3rd percentile AGA (in degrees) was 2.67 (3.21) in control and 5.64 (5.42) in patients with UVFP (P < .001); mean (SD) 97th percentile AGA was 57.08 (11.14) in control and 42.59 (12.37) in patients with UVFP (P < .001). For patients with UVFP who underwent procedural intervention, the mean 97th percentile AGA decreased by 5 degrees from pre- to postprocedure (P = .026). The difference between the 97th and 3rd percentile AGA predicted UVFP with 77% sensitivity and 92% specificity (P < .0001). There was no correlation between AGA measurements and patient-reported outcome scores.CONCLUSIONS:
AGATI demonstrated a difference in AGA measurements between paralysis and control patients. AGATI can predict UVFP with 77% sensitivity and 92% specificity.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Video Recording
/
Artificial Intelligence
/
Vocal Cord Paralysis
/
Glottis
/
Laryngoscopy
Type of study:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Aspects:
Patient_preference
Limits:
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Otolaryngol Head Neck Surg
Journal subject:
OTORRINOLARINGOLOGIA
Year:
2021
Document type:
Article
Affiliation country: