Ultrasound diagnostic apparatus and control method for ultrasound diagnostic apparatus

An ultrasound diagnostic apparatus comprising:

• an ultrasound probe;
• and
• a processor configured to:
• acquire chewing information during chewing of a subject;
• adjust a predetermined first image formation condition to a second image formation condition suitable for detecting a swallowing residue of the subject on the basis of the acquired chewing information;
• acquire an ultrasound image of a pharyngeal part of the subject in accordance with the second image formation condition by transmitting and receiving an ultrasound beam using the ultrasound probe;
• and
• evaluate whether or not the subject has dysphagia and a degree of dysphagia on the basis of the ultrasound image acquired,
• wherein the processor acquires at least one of a number of chewing movements, a strength of chewing, a habit of chewing, or an area of chewing as the chewing information, and
• wherein the processor adjusts the first image formation condition to the second image formation condition to increase a frame rate as the number of chewing movements, the strength of chewing, or the area of chewing acquired as the chewing information increases.

An ultrasound diagnostic apparatus comprising:

• an ultrasound probe;
• a processor configured to:
• acquire chewing information during chewing of a subject;
• adjust a predetermined first image formation condition to a second image formation condition suitable for detecting a swallowing residue of the subject on the basis of the acquired chewing information;
• acquire an ultrasound image of a pharyngeal part of the subject in accordance with the second image formation condition by transmitting and receiving an ultrasound beam using the ultrasound probe;
• and
• evaluate whether or not the subject has dysphagia and a degree of dysphagia on the basis of the ultrasound image acquired;
• and
• an optical camera that acquires a video image of a region including at least one of a mouth, a jaw, or the pharyngeal part of the subject,
• wherein the processor acquires the chewing information by analyzing the video image acquired by the optical camera.

An ultrasound diagnostic apparatus comprising:

• an ultrasound probe;
• and
• a processor configured to:
• acquire chewing information during chewing of a subject;
• adjust a predetermined first image formation condition to a second image formation condition suitable for detecting a swallowing residue of the subject on the basis of the acquired chewing information;
• acquire an ultrasound image of a pharyngeal part of the subject in accordance with the second image formation condition by transmitting and receiving an ultrasound beam using the ultrasound probe;
• and
• evaluate whether or not the subject has dysphagia and a degree of dysphagia on the basis of the ultrasound image acquired,
• wherein the processor uses machine learning to adjust the first image formation condition to the second image formation condition on the basis of the chewing information.