Multimodal Laryngoscopic Video Analysis for Assisted Diagnosis of Vocal Cord Paralysis

• URL: http://arxiv.org/abs/2409.03597v1
• Date: Thu, 5 Sep 2024 14:56:38 GMT
• Title: Multimodal Laryngoscopic Video Analysis for Assisted Diagnosis of Vocal Cord Paralysis
• Authors: Yucong Zhang, Xin Zou, Jinshan Yang, Wenjun Chen, Faya Liang, Ming Li,
• Abstract summary: The Multimodal Analyzing System for Laryngoscope (MASL) combines audio and video data to automatically extract key segments and metrics from laryngeal videostroboscopic videos for clinical assessment. MASL integrates glottis detection with keyword spotting to analyze patient vocalizations and refine video highlights for better inspection of vocal cord movements.
• Score: 7.583632364503357
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This paper presents the Multimodal Analyzing System for Laryngoscope (MASL), a system that combines audio and video data to automatically extract key segments and metrics from laryngeal videostroboscopic videos for clinical assessment. MASL integrates glottis detection with keyword spotting to analyze patient vocalizations and refine video highlights for better inspection of vocal cord movements. The system includes a strobing video extraction module that identifies frames by analyzing hue, saturation, and value fluctuations. MASL also provides effective metrics for vocal cord paralysis detection, employing a two-stage glottis segmentation process using U-Net followed by diffusion-based refinement to reduce false positives. Instead of glottal area waveforms, MASL estimates anterior glottic angle waveforms (AGAW) from glottis masks, evaluating both left and right vocal cords to detect unilateral vocal cord paralysis (UVFP). By comparing AGAW variances, MASL distinguishes between left and right paralysis. Ablation studies and experiments on public and real-world datasets validate MASL's segmentation module and demonstrate its ability to provide reliable metrics for UVFP diagnosis.

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