Other Types of Diagnostic Instrumentation

Question 1

Ultrasound

Answer 1

Can observe:

• tongue activity
• bolus transport
• compensatory techniques
• hyoid motion
• lingual and floor muscles

Question 2

Ultrasound Advantages

Answer 2

• portable
• normal postures
• normal food consistencies
• no radiation

Question 3

Ultrasound Disadvantages

Answer 3

• can’t observe laryngeal function
• cannot see bone
• cannot see aspiration

Question 4

Manometry

Answer 4

• Measures pressure changes in esophagus (peristalsis)

- IDs disruption to peristalsis and UES

Question 5

EMG

Answer 5

• Measures muscle change
• Useful for IDing muscle dysfunction
• Painful- uses electrodes

Question 6

Nuclear Scintography

Answer 6

• Radioactive material swallowed and followed
• Measurements determine where material ends up
• Assess bolus movement other than oropharyngeal function