Design : Prospective cohort study~Setting : Hospital rehabilitation department~Inclusion criteria of the patient group : Patients scheduled for VFSS examination~Intervention~This study will be conducted after collecting basic information such as age, gender, and disease of patients who met the inclusion criteria among patients scheduled to undergo a video fluoroscopic swallowing test (VFSS test) for the diagnosis of dysphagia, and after obtaining guidance and consent through the study description will do.~Before the subject's VFSS test, Ah for 5 seconds, after clearing the throat, Ah for 5 seconds, and briefly cut with a slightly high sound, Ah. oh Ah., shut lips lightly and read Ummm~~~~, read a short sentence.~While the subject makes the above sound, voice is recorded, video is taken, and integrated sensors such as a microphone (sound detection) sensor and surface electromyography sensor are attached to measure changes in each sensor.~After the VFSS test, participants will repeat the above sound and record the same twice. (As before the test, imaging of the patient's swallowing is also performed.)~Using voice analysis, various sensor values, and image information, a voice indicator that can predict the amount of suction and residue on the VFSS test is found.
Collection of basic data for real-time analysis and monitoring by measuring what changes in voice occur according to the state of dysphagia using voice analysis and various sensors.