WRS/SRS
Word Recognition Score/Sentence Recognition Score
•
Score
Percentage of correct/incorrect words.
•
Level
dB level at which the words were presented.
•
[Msk]
Effective masking level (dB EML) used for contralateral masking.
•
SNR
Signal-to-Noise Ratio.
PTA
Pure Tone Average
•
PTA - AC
Pure Tone Average for Air Conduction thresholds.
•
PTA - BC
Pure Tone Average for Bone Conduction thresholds.
AI
Articulation Index (%), based on the Count-the-dot method.
2.10
Special tests
2.10.1
Available special tests
Some special tests may be specific to language or local test protocols and are not included in Otosuite but are available for
adding to the Otosuite Audiometry module. Contact your local supplier for further information.
2.10.2
SISI (Short Increment Sensitivity Index)
The SISI Test was developed by Jerger and co-workers (Jerger, Shedd, and Harford, 1959) and was introduced as a pro-
cedure that was reliable and reasonably objective.
The test consists of superimposing brief bursts of 1 dB intensity increments on a sustained tone presented monaurally
through earphones at a sensation level of 20 dB at each tested frequency.
The patient is instructed to report any jumps in loudness detected while listening to the sustained tone for a period of
about two minutes.
2.10.2.1
Navigating in SISI
The Control Panel
Channel
Continuous On
When checked, the stimulus will be continuously on and will turn off when you press the stim-
ulus button.
Madsen A450
51
2 Navigating in the Otosuite Audiometry module
