Feasibility of Bioelectrical Impedance Spectroscopy Measurement before and after Thoracentesis

Figure 4

Impedances using the low frequency domain in patients before and after thoracentesis and in the control group: (a) using the “Foot to Hand” vector before (437 (369–505) Ω) and after thoracentesis (477 (95% CI 402–552) Ω), control group (512 (95% CI 483–541) Ω); (b) using the “Transthoracic” vector before (34.46 (29.08–39.84) Ω) and after thoracentesis (95% CI 38.28 (95% CI 31.85–44.71) Ω), control group (65.18 (95% CI 59.8–70.56) Ω).

(a)

(b)