Müse Parameter Descriptions
231
PN: 905K520652 v2.8
Ischemic Index Averaging
Ischemic index averaging determines how quickly myocardial ischemia develops in the presence of
an unfavorable oxygen supply/demand ratio or how rapidly it resolves when myocardial oxygenation
becomes favorable. By decreasing the averaging time (i.e., value toward 0.5), ischemia has a faster
onset if there is a poor oxygen supply to the heart or a faster resolution with favorable oxygenation.
Increasing the averaging time (i.e., value toward 0.99) means ischemia takes longer to develop or
longer to resolve.
Use this parameter to speed up the recovery from the model-driven “death spiral.” By setting the
parameter to 0.5, a patient pulls out of the “death spiral” at a faster rate than with a setting of 0.99.
However, the favorable conditions (i.e., better oxygenation and/or lower heart rate) must exist before
the number is made smaller. If not, the patient’s descent increases at a faster rate.
Default: 0.99
Range: 0.50 - 1.00
Aortic Valve Resistance Factor
The Aortic Valve Resistance Factor parameter is used to adjust the resistance to blood flow across
the aortic valve. Increasing the value to greater than 1 corresponds to increased resistance to blood
flow through the aortic valve.
Default: 1
Range: 1 - 1000
Mitral Valve Resistance Factor
The Mitral Valve Resistance Factor parameter is used to adjust the resistance to blood flow across
the mitral valve. Increasing the value to greater than 1 corresponds to increased resistance to blood
flow through the mitral valve.
Default: 1
Range: 1 - 1000
Pulmonic Valve Resistance Factor
The Pulmonic Valve Resistance Factor parameter is used to adjust the resistance to blood flow
across the pulmonic valve. Increasing the value to greater than 1 corresponds to increased resistance
to blood flow through the pulmonic valve.
Default: 1
Range: 1 - 1000
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