Diffusion tensor imaging in acute-to-subacute traumatic brain injury: a longitudinal analysis

BMC Neurology

Table 1 DTI data acquisition parameters (n = 11 TBI patients, n = 22 DTI scans)

ID	Post-TBI scan days	Field strength	FOV (mm)	b value (s/mm²)	# Directions	# b0	NEX	TR (msec)	TE (msec)	In-plane resolution (mm)	Slice thickness (mm)	Inter-slice gap (mm)	Matrix
1	5	1.5 T	220	1000	6	1	3	7500	99.3	1.72 × 1.72	5	1	128 × 128
1	14	1.5 T	220	1000	6	1	3	7500	99.2	1.72 × 1.72	6	1	128 × 128
2	2	1.5 T	220	1000	6	1	3	7500	99.2	1.72 × 1.72	5.5	1	128 × 128
2	13	1.5 T	220	1000	6	1	3	7500	72.9	1.72 × 1.72	5	1	128 × 128
3	1	1.5 T	220	1000	6	1	3	7500	99.3	1.72 × 1.72	5	1	128 × 128
3	29	1.5 T	220	1000	6	1	3	7500	72.9	1.72 × 1.72	5	1	128 × 128
4	1	1.5 T	220	1000	6	1	3	7500	99.3	1.72 × 1.72	5	1	128 × 128
4	19	1.5 T	220	1000	6	1	3	7500	99.3	1.72 × 1.72	5	1	128 × 128
5	2	1.5 T	220	1000	6	1	5	5000	88.9	0.86 × 0.86	5	1	128 × 128^a
5	97	1.5 T	220	1000	6	1	5	5000	95.7	0.86 × 0.86	5	1	128 × 128^a
6	2	1.5 T	220	1000	6	1	3	7500	99.2	1.72 × 1.72	5	1	128 × 128
6	11	1.5 T	220	1000	6	1	5	5000	99.4	0.86 × 0.86	5	1	128 × 128^a
7	5	1.5 T	220	1000	6	1	5	5000	88.9	0.86 × 0.86	5	1	128 × 128^a
7	17	1.5 T	220	1000	6	1	5	5000	88.9	0.86 × 0.86	5	1	128 × 128^a
8	2	1.5 T	220	1000	6	1	5	5000	91.9	0.86 × 0.86	5	1	128 × 128^a
8	32	1.5 T	260	1000	6	1	5	7000	91.3	1.02 × 1.02	5	1	128 × 128^a
9	7	1.5 T	220	1000	6	1	5	5000	96.9	0.86 × 0.86	5	1	128 × 128^a
9	15	1.5 T	220	1000	6	1	5	5000	91.9	0.86 × 0.86	5	1	128 × 128^a
10	2	1.5 T	220	1000	6	1	5	5000	91.9	0.86 × 0.86	5	1	128 × 128^a
10	19	1.5 T	220	1000	25	3	1	5000	78.8	0.86 × 0.86	5	1	128 × 128^a
11	5	1.5 T	220	1000	6	1	3	7500	99.3	1.72 × 1.72	5	1	128 × 128
11	38	1.5 T	220	1000	25	3	1	5000	85.3	0.86 × 0.86	5	1	128 × 128^a

Abbreviations: b0 b = 0 s/mm², FOV field of view, NEX number of excitations (i.e. number of averages), T Tesla, TBI traumatic brain injury, TE echo time, TR repetition time, # number of. ^aAcquisition matrix was 128 x 128, zero-filled to 256 × 256

ISSN: 1471-2377