Keywords:
Head and neck, Paediatric, Trauma, MR, MR-Diffusion/Perfusion, MR-Spectroscopy, Statistics
Authors:
M. Ublinskiy, N. Semenova, T. Akhadov, P. E. P. Menshchikov, A. Manzhurtsev, I. Melnikov, M. Akhlebinina; Moscow/RU
DOI:
10.26044/ecr2019/C-1915
Methods and materials
8 patients (mean age = 12.5) with sTBI comprised group 1.
4 children (mean age = 13.6) with HIBI caused by drowning in fresh water.
MR studies of patients from both groups were carried out twice: first - during the first seven days after injury (period 1); second - a month after injury (period 2).
All studies were performed at Phillips Achieva 3.0T MRI scanner.
T1W 3D (TR = 8.1 ms,
TE = 3.7 ms,
FOV = 240 mm,
Thk 1 mm,
NSA = 1,
AQ = 5:37 min);
DTI (TR = 9431 ms; TE = 70 ms,
matrix 120/144,
FOV = 240 mm,
voxel size 2 x 2 x 2 mm,
EPI factor = 63,
gap = 0,
NSA = 2);
DT MR images were acquired with diffusion gradients applied in 32 non-collinear directions.
1H-MRS voxel (TR/TE =1500 ms/ 40 ms,
NSA = 128,
total duration=5 min 40 s) was localized in left and right thalamus (for groups 1 and 2) and in brain stem (for group 2). The size of spectroscopic voxel: 10 x 15 x 20 mm; respectively,
volume of voxel is 3 cm3.