BioMed Research International / 2018 / Article / Tab 1

Research Article

A Study of Machine-Learning Classifiers for Hypertension Based on Radial Pulse Wave

Table 1

TD features.

No.FeaturesMeaning

1h1Main wave amplitude. It reflects the compliance of the aorta and the cardiac ejection function of the left ventricular

2h2Main isthmus wave amplitude. Same physiological significance as h3.

3h3Heavy wave front wave amplitude. It reflects the elasticity of arterial vessels and its peripheral resistance.

4h4Dicrotic notch amplitude. It reflects the peripheral resistance of arterial vessels and the closure of aortic valve.

5h5Gravity wave amplitude. It reflects the compliance of the aorta and the function of aortic valve.

6t1Left ventricular rapid ejection period. The time value from the start point to the crest point of the main wave on the pulse graph.

7t2The duration of the beginning of the tidal wave.

8t3The duration of the crest of the tidal wave.

9t4Left ventricular systolic duration. The time value from the start point to the dicrotic notch on the pulse graph.

10t5Left ventricular diastolic duration. The time value from the dicrotic notch to the end point on the pulse graph.

11tIncludes left ventricular systolic and diastolic duration. The time value from the start point to the end point on the pulse graph.

12w1main wave 1/3 height. The duration of maintaining high intravascular pressure.

13w2main wave 1/5 height. The duration of maintaining high intravascular pressure.

14w1/tThe ratio of the width of the main wave at its 1/3 height to the entire pulse cycle. It reflects the proportion of the duration time of continuous high pressure in the aorta in the entire pulse cycle.

15w2/tThe proportion of the duration time of continuous high pressure in the aorta in the entire pulse cycle.

16h1/t1cardiovascular function

17AsSystolic area. The area on the pulse graph is related to cardiac output.

18AdDiastolic area.

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