1. Picoamp Input Current, Microvolt Offset, Low Noise.

2. Conclusion The development of microvolt T-wave alternans is highly dependent on heart rate.

3. Introduced a design of microvolt signal amplifier, which consists of amplifiers, filters and isolation.

4. Microvolt T wave alternans (MTWA) has been associated with malignant ventricular arrhythmias in patients with structural heart disease.

5. Objective To analyze microvolt T wave alteration (MTWA) in patients with coronary heart disease (CHD) on exercise treadmill test.

6. Spurious microvolt level signals are often present in low resistance circuits, most often as a result of thermoelectric effects.

7. The clinical tests showed that the method is effective for microvolt T-wave alternans detection.

8. Where the volt is too large a unit, we use the millivolt or microvolt.

9. Because of the low test current level used, a very sensitive voltmeter is required to measure the voltage drop, which is usually in the microvolt range.