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The ST Segment to Heart Rate Index (ST/HR Index) or the Heart Rate-Adjusted ST

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Objective:

ICD-10:

Description:

Since the heart rate affects myocardial work, which in turn affects the ischemic ST response during exercise, adjusting the ST segment depression for heart rate may improve its accuracy of the ST segment change for diagnosing coronary artery disease. The ST/HR index is the ratio of the ST segment differences between exercise and rest to the heart rate difference.

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