Stroke Volume Estimation from Respiratory Inductive Plethysmography: Double Empirical Decomposition

Table 1

Simulated situations. HR = heart rate, Fr: breathing frequency, f: frequency ratio, a: amplitude ratio.

Situation	1/f	1/a
Situation 1 (stationary)	4 (HR = 1; fr = 0.25)	[0.1–0.17]
Situation 2 (nonstationary)	f 1 = 7.1; f 2 = 7.8 (HR1 = 1, HR2 = 2.2; Fr1 = 0.14, Fr2 = 0.28)	[0.05–0.15]
Situation 3 (non–stationary)	f 1 = 3.6; f 2 = 7.2 (HR1 = 1, HR2 = 2; Fr1 = 0.28, Fr2 = 0.28)	[0.04–0.16]
Situation 4 (stationary)	3 (HR = 0.75; Fr = 0.25)	[0.1–0.15]
Situation 5 (stationary)	7 (HR = 1; Fr = 0.14)	[0.05–0.15]
Situation 6 (nonstationary)	f 1 = 7.1; f 2 = 7.8 (HR1 = 1, HR2 = 1.8; Fr1 = 0.14, Fr2 = 0.23)	[0.05–0.15]
Situation 7 (nonstationary)	(Progressive rise of HR: [1.4–3.3]; progressive rise of fr: [0.2–0.5])	[0.05–0.08]