title: A Supporting Platform for Semi-Automatic Hyoid Bone Tracking and Parameter Extraction from Videofluoroscopic Images for the Diagnosis of Dysphagia Patients.
abstract: Conventional kinematic analysis of videofluoroscopic (VF) swallowing image, most popular for dysphagia diagnosis, requires time-consuming and repetitive manual extraction of diagnostic information from multiple images representing one swallowing period, which results in a heavy work load for clinicians and excessive hospital visits for patients to receive counseling and prescriptions. In this study, a software platform was developed that can assist in the VF diagnosis of dysphagia by automatically extracting a two-dimensional moving trajectory of the hyoid bone as well as 11 temporal and kinematic parameters. Fifty VF swallowing videos containing both non-mandible-overlapped and mandible-overlapped cases from eight patients with dysphagia of various etiologies and 19 videos from ten healthy controls were utilized for performance verification. Percent errors of hyoid bone tracking were 1.7 ± 2.1% for non-overlapped images and 4.2 ± 4.8% for overlapped images. Correlation coefficients between manually extracted and automatically extracted moving trajectories of the hyoid bone were 0.986 ± 0.017 (X-axis) and 0.992 ± 0.006 (Y-axis) for non-overlapped images, and 0.988 ± 0.009 (X-axis) and 0.991 ± 0.006 (Y-axis) for overlapped images. Based on the experimental results, we believe that the proposed platform has the potential to improve the satisfaction of both clinicians and patients with dysphagia.
authors.affiliation: Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Korea.
authors.forename: Jun Chang
authors.initials: JC
authors.lastname: Lee
authors.affiliation: Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Korea.
authors.forename: Kyoung Won
authors.initials: KW
authors.lastname: Nam
authors.affiliation: Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Korea.
authors.forename: Dong Pyo
authors.initials: DP
authors.lastname: Jang
authors.affiliation: Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seoul, 13620, Korea.
authors.forename: Nam Jong
authors.initials: NJ
authors.lastname: Paik
authors.affiliation: Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seoul, 13620, Korea.
authors.forename: Ju Seok
authors.initials: JS
authors.lastname: Ryu
authors.affiliation: Department of Biomedical Engineering, Hanyang University, Seoul, 04763, Korea. iykim@hanyang.ac.kr.
authors.forename: In Young
authors.initials: IY
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001696:Biomechanical Phenomena; D016022:Case-Control Studies; D003680:Deglutition Disorders / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D006928:Hyoid Bone / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D007090:Image Interpretation, Computer-Assisted; D008297:Male; D008334:Mandible / Q000000981:diagnostic imaging; D008875:Middle Aged; D012984:Software; D014741:Video Recording
keywords: Deglutition; Deglutition disorders; Diagnosis; Dysphagia; Hyoid bone; Videofluoroscopic