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Figure 1 | Cardiovascular Ultrasound

Figure 1

From: Pacing stress echocardiography

Figure 1

The pathways of ischemia – The pathophysiologic rationale of pacing stress for noninvasive detection of coronary artery disease is obvious with the stress determined by a controlled increase in heart rate, which is a major determinant of myocardial oxygen demand, and thereby tachycardia may exceed a fixed coronary flow reserve in the presence of hemodynamically significant coronary artery disease.

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