Exam 2 Part 14 Flashcards
Provides more information about the severity and nature (possible etiology) of a voice disorder than other instrumental measures
Laryngeal imaging
The other name for flexible endoscopy.
Nasoendoscopy
What are the 3 types of laryngeal imaging techniques?
Stroboscopy, kymography, high speed
This is the most commonly used clinical imaging technique using endoscopy
Stroboscopy
What 2 types of degrees do the rigid scopes use?
70, 90
T/F: flexible is usually preferred compared to rigid endoscopy procedure due to its high quality stable image.
False
A lighting technique where a stroboscopic light flashes at specific moments to form a composite vibratory cycle; creates a series of separate images sampled from different points of vocal fold vibration
Stroboscopy
Where does dysphonia occur?
At the glottal level
T/F: In order for stroboscopy to work, the patient must have a stable pitch
True
“Persistence of vision” is about:
Physiological limitations of the retina
At this rate, eye can perceive each image independently, whereas, mages presented at faster rate, they will be visually “fused”, and appear as one continuous moving image.
Persistence of vision
T/F: Stroboscopy procedure depends on “stable pitch” in order for the strobe flashing rate to work accordingly.
True
In aperiodic voices, this technique might produce errors because:
Pitch is difficult to identify and therefore strobe flashing rate will be messed up
T/F: A difference between a traveling and still image is strobe flashes at different and same points within each vibratory cycle respectively.
True
The light source for regular endoscopy and strobe flash respectively:
Halogen and Xenon
The direct recording of true vocal fold vibration
High speed digital imaging
T/F: High speed is a type of flexible endoscope
False; rigid
T/F: High speed imaging does not rely on fundamental frequency and can be used on any voice severity
True
High speed imaging is fast enough to allow real-time recording of vocal fold oscillation during what times?
Phonatory onset, offset, sustained voice, changes in pitch and loudness
T/F: The common feature of high-speed and stroboscopy techniques is their dependence of stable pitch for tracking purposes.
False; it performs a real-time recording of vocal fold oscillation