Table 1.

Summary CRT results of a single subject with 10 refills. Tabulated here are the RMSE, R², C₀, CRT, the time to reach the stable blood volume, the ratio between the amplitude of the minimum intensity to the local maximum (A2) and the amplitude of blanching intensity relative to the starting intensity (A1). All these features were calculated from the fitting curves (in blue). Additionally shown are the PI and (P–P)_ave interval values, which were calculated from the refilling signals in last 2 columns.

Refill	RMSE	R2	C0	CRT (s)	Stable Blood Volume (s)	Ratio of A2/A1 (%)	Average PI (%)	(P-P)ave Interval (s)
1	0.038	0.95	−6.57 × 10−7	1.29	4.77	9	2.08	0.68
2	0.036	0.97	2.37 × 10−5	1.86	5.96	15	2.65	0.67
3	0.040	0.95	7.95 × 10−7	1.22	5.07	18	2.33	0.61
4	0.049	0.94	2.29 × 10−6	1.22	4.26	10	2.49	0.66
5	0.046	0.96	1.80 × 10−5	1.65	5.15	14	2.51	0.66
6	0.042	0.96	9.58 × 10−6	1.47	5.19	12	2.43	0.68
7	0.035	0.96	3.23 × 10−6	1.18	4.43	10	2.53	0.65
8	0.037	0.97	1.83 × 10−5	1.73	5.52	16	3.14	0.68
9	0.042	0.94	1.89 × 10−6	1.21	4.94	19	2.99	0.68
10	0.043	0.95	1.32 × 10−5	1.53	5.13	12	2.89	0.68
Ave.	0.041	0.96	9.03 × 10−6	1.44 ± 0.25	5.04 ± 0.49	13.5 ± 3.47	2.60 ± 0.32	0.67 ± 0.02