Comparing the Assessment Accuracy Between Submental Ultrasound and Speech Therapists in Nasogastric Tube Removal

The goal of this randomized controlled trial is to compare the assessment accuracy between submental ultrasound and speech-language pathologists on nasogastric tube removal in post-acute dysphagia adult patients. The main question it aims to answer is: whether the assessment accuracy of submental ultrasound is the same or better than the assessment speech therapist. Participants will undergo submental ultrasound and speech-language pathologists\' assessments, and randomly distribute to submental ultrasound (SUS) and speech-language pathologist (SLP) group for evaluation. SUS group will enter oral feeding diet and tube removal training protocol based on the submental ultrasound criteria for swallowing function (Maximum hyoid bone displacement≧ 1.38 cm); while the SLP group will enter the above training protocols based on the speech-language pathologist\'s assessment. Researchers will compare the nasogastric tube removal rate, vital signs, basic laboratory data, hyoid bone displacement on submental images, chocking and aspiration rate, the success rate of training protocols, Functional Oral Intake Scale (FOIS), etc. to see if the swallowing function and nasogastric tube removal assessment of submental ultrasound is consistent with speech-language pathologists\' assessments.