High-resolution and accelerated multi-parametric mapping with automated characterization of vessel disease using intravascular MRI

Table 3 Comparison of in vivo vessel compartment-average T₁ (ms), T₂ (ms), and PD (relative to water) measured using SLAM with acceleration factors of R = 1-18, and those measured using the full k-space reconstruction

	Comp.^a	R = 1	R = 3	R = 6	R = 10	R = 18	full k-space^b
T₁	1	2916	2905	2900	2946	2826	2802 ± 721
	2	787	787	788	786	780	812 ± 124
	3	848	865	993	1094	1041	929 ± 388
	4	236	237	243	288	365	253 ± 122
	5	731	728	740	804	879	776 ± 123
	6	705	705	704	705	704	964 ± 704
T₂	1	1173	1154	1131	1040	825	1050 ± 1253
	2	47	47	47	47	47	51 ± 15
	3	75	81	106	123	135	128 ± 247
	4	99	99	98	93	86	98 ± 21.5
	5	42	42	42	43	47	46 ± 10
	6	64	64	64	63	64	101 ± 176
PD	1	1.01	1.01	1.00	1.00	0.95	1.00 ± 0.24
	2	0.77	0.77	0.78	0.78	0.77	0.74 ± 0.13
	3	0.45	0.44	0.45	0.50	0.52	0.46 ± 0.18
	4	0.41	0.40	0.40	0.39	0.38	0.45 ± 0.10
	5	0.81	0.81	0.82	0.84	0.83	0.84 ± 0.18
	6	0.40	0.40	0.40	0.40	0.40	0.65 ± 0.54

ISSN: 1532-429X