ZOLL E Series, Operator'S Manual, Page: 124 / 133

9650-1210-01 Rev. T A-25
Number of ECG Rhythms with SPI > Threshold that were successfully converted
Sensitivity = -------------------------------------------------------------------------------------------------------------
Total number of ECG rhythms that were successfully converted
Number of ECG rhythms with SPI

Threshold that did not convert
Specificity = -----------------------------------------------------------------------------------------
Total number of ECG rhythms that did not convert
Figure A-21. Sensitivity and Specificity Curves vs. SPI (mV-Hz) for the Combined Datasets
Sen
si
tiv
ity or S
p
ecificity
SPI