US 12,419,569 B2
Swallowing evaluation system and swallowing evaluation method
Mikihiko Karube, Tokyo (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on May 23, 2023, as Appl. No. 18/322,393.
Application 18/322,393 is a continuation of application No. PCT/JP2021/043235, filed on Nov. 25, 2021.
Claims priority of application No. 2020-195807 (JP), filed on Nov. 26, 2020.
Prior Publication US 2023/0293091 A1, Sep. 21, 2023
Int. Cl. A61B 5/00 (2006.01); A61B 7/00 (2006.01); A61B 8/08 (2006.01)
CPC A61B 5/4205 (2013.01) [A61B 5/7267 (2013.01); A61B 7/003 (2013.01); A61B 8/085 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A swallowing evaluation system comprising:
a memory configured to store computer-readable instructions, which when executed cause the swallowing evaluation system to evaluate swallowing of a subject; and
a processor configured to, when executing the computer-readable instructions, control the swallowing evaluation system to
acquire an ultrasound image in a pharynx of the subject,
acquire a swallowing sound of the subject,
determine by inputting the ultrasound image into a neural network an image feature amount that represents a first degree of abnormality occurring in the swallowing of the subject, determine by inputting the swallowing sound into the neural network a sound feature amount that represents a second degree of abnormality occurring in the swallowing of the subject,
determine based on the first degree of abnormality and the second degree of abnormality at least one of a first evaluation whether a food-like structure remains in an epiglottic vallecula or a pyriform sinus of the subject and a second evaluation whether dysphagia is suspected in the subject, and
output a swallowing evaluation of the subject indicating at least one of the first evaluation and the second evaluation, and
the neural network being a trained neural network trained to determine the first degree of abnormality using images of pharynges of other subjects and trained to determine the second degree of abnormality using swallowing sounds of the other subjects.