Videofluoroscopy Flashcards
What are the three standard views?
Lateral view, frontal (anterior posterior/ AP) view, base view
What can be viewed from the lateral view?
Length of the velum, velar movement and height during speech, the entire posterior pharyngeal wall, tongue movement during speech, patency of an oronasal fistula w/ barium in nasal cavity
What is the difficulty of using barium?
Has to be administered, fairly thick, can hide view of VP port
How is the frontal view obtained?
xray through nose
What is the frontal view used to see?
Lateral pharyngeal walls at rest and during speech
Where does beam enter in the base view?
enters through base of chin, travels up through VP port
What is the base view used to see?
Entire velopharyngeal sphincter from bottom up
What might the towne’s view be used for?
Is similar to base view but from opposite direction. Can be useful if child has swollen adenoids can give better view of VP port
What does bubbling of the barium mean after it’s placed?
can indicate a small velopharyngeal gap
Why are direct instrumental procedures used?
to visualize the structure and anatomy, determine location of velopharyngeal gap for surgery, assessing the placement of a prosthetic
What are the disadvantages of direct instrumental procedures?
subjective–depend on clinical interpretation.
What is it called when videofluoroscopy is used to examine the velopharyngeal valve during speech?
videofluoroscopic speech study
Why aren’t CT’s and MRI typically used to examine the velopharyngeal structure in a clinical setting?
Expensive, too slow to track speech movements
