B-8 CASE Revision C
2060290-201
Miscellaneous: Exercise Test Interpretation (XTI)
Exercise Test Interpretation (XTI)
An exercise test on a treadmill or a bicycle delivers a large number of
measurements that are valuable in predicting morbidity/mortality, in
detecting coronary artery disease and in describing the functional
exercise response of a patient.
However, it is very difficult to have a comprehensive knowledge of all
measurements and their thresholds, especially of the new ones, namely
HR recovery, FVE recovery, ST/HR hysteresis, and HR reserve used.
The Exercise Test Interpretation (XTI) program compares the exercise
measurements against established thresholds and provides statements
and reasoning texts (explanation of the statements) when thresholds are
exceeded.
Following is an example of a statement with the accompanying reasoning
text:
Ischemia, probably caused by coronary artery disease
because ST/HR hysteresis > 0.02 mV in [V5 V6] and
HR reserve used < 70%
The intention of the statements and reasoning texts is to provide a short,
clear, and accurate overview of the results of an exercise test.
For more details, please refer to the Physician’s Guide to GE Stress
Systems, Part No. 2051167-001.
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