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Keywords:
Neuroradiology brain, MR, CT, Outcomes analysis, Haemorrhage
Authors:
Y. J. LEE, H. S. Choi, B.-Y. Kim, J. Jang, S. L. Jung, K. J. Ahn, B. S. Kim; Seoul/KR
DOI:
10.1594/ecr2014/C-1088
Methods and materials
We retrospectively enrolled patients with ICH who underwent both SWI and precontrast CT between 2011 and 2013 (n=43).SWI was taken using 3-Teslar system and phase map was generated after postprocessing.
SWI was obtained with 3-dimensional gradient echo,
according to the following parameters: FA=15,
a repetition time(TR) of 28ms,
an echo time(TE) of 20 ms,
a 320 x 320 acqusition matrix,
a field of view of 23 x 23 cm,
a slice thickness of 2 mm.
Types of hemorrhage were determined and stages of hemorrhage were determined in correlation with precontrast CT,
T1- and T2-weighted images,
and FLAIR images.
Types of hemorrhage is classified as subdural hemorrhage or epidural hemorrhage,
subarachnoid hemorrhage,
and parenchymal hemorrahge.
Phase values of ICH were qualitatively evaluated: dark,
gray,
and bright.
We summarized imaging feature of intracranial hemorrhage on phase map of SWI.
Cases were reviewed by 8-year and 2-year experienced radiologists in consensus.