Bolus characteristics based on Magnetic Resonance Angiography

Table 2 Summary of bolus model fitting parameters.

	patient number	t _c		σ	τ	C
		a ₀	a ₁			C ₀	C ₁	C ₂
UIHC 'GE' MR machine	1	15	0.0076	1.80	4.89	4.2	0.044	-1.2e-4
	2	17	0.017	7.75	5.25	4.4	-0.0032	-7e-5
	3	17	*-0.0029*	2.34	8.10	5.4	0.068	-5.2e-4
	4	13	0.019	2.04	5.30	2.7	0.014	-4e-5
	5	13	0.0063	2.06	5.17	4.7	0.026	-1.7e-4
	6	13	0.00047	1.67	6.37	5.1	-0.012	-4.3e-5
	7	22	0.044	2.81	19.70	5.5	0.25	-3e-3
	8	18	0.0089	2.06	6.79	5.8	-0.11	-2.4e-5
	9	14	0.029	2.63	7.72	2.6	0.056	-5.6e-4
	10	15	0.015	2.36	4.75	8.5	-0.052	*3.5e-4*
	11	16	0.0092	1.87	8.27	5.7	-0.021	*4.4e-5*
	12	15	0.0085	1.77	7.03	6.3	0.034	-4e-4
	13	16	0.001	2.05	4.81	5	0.016	-3.6e-5
	14	18	0.0082	2.48	18.20	16	-0.12	*7.3e-4*
	15	14	0.0096	2.02	4.98	6.2	0.012	-8.9e-5
	16	10	0.004	1.35	3.85	6.7	-0.051	*1.8e-4*
	17	14	0.0085	1.85	4.98	4.3	0.11	-6.5e-5
	18	12	0.0076	1.60	5.41	4.7	-0.021	*1.4e-5*
	19	15	*-0.0034*	1.77	5.42	7.2	-0.0014	*4.7e-6*
	20	13	0.0054	1.62	6.10	3.5	0.013	-9e-5
	21	15	0.013	2.25	12.13	8.1	-0.067	*3.9e-4*
	22	15	0.0062	2.24	9.16	14	-0.034	-1.3e-4
NU 'Siemens ' MR machine	23	16	0.0049	1.79	4.08	0.88	0.00074	-1.7e-5
	24	23	0.0089	2.99	7.42	1.4	-0.0087	*7.4e-6*
	25	24	0.0067	2.06	6.62	1.4	-0.0032	-1.4e-5
	26	25	0.0061	2.08	6.52	1.3	-0.0035	-1.5e-5
	27	28	0.0086	2.90	19.07	1.4	0.12	-1.3e-4
	28	15	0.0027	1.86	4.09	0.81	-0.0034	*5.7e-6*
	29	19	0.0078	2.62	3.48	1.5	0.036	-4.9e-4
	30	20	0.0043	2.63	4.25	0.66	0.019	-5e-4

The fitting parameter σ and τ are represented by mean values, while t _cand C are represented by linear function t _c= a ₀ + a ₁ z and quadratic function C = C ₀ + C ₁ z + C ₂ z².

ISSN: 1475-925X