Summary
In this study, we investigated 40 patients (18 male, 22 female; mean age = 64.5 ± 11.0; GCS = 9 to 14) with acute supratentorial spontaneous intracerebral hemorrhage (SICH) at admission by using a 1-tesla magnetic resonance imaging (MRI) unit equipped for single-shot echo-planar spin-echo isotropic diffusion-weighted imaging (DWI) sequences. All DWI studies were obtained within 48 hours after symptom onset. Regional apparent diffusion coefficient (rADC) values were measured in 3 different regions of interest (ROIs) drawn freehand on the T2-weighted images at b 0 s/mm2 on every section in which hematoma was visible: 1) the perihematomal hyperintense area; 2) 1 cm of normal appearing brain tissue surrounding the perilesional hyperintense rim; 3) an area mirroring the region including the clot and perihematomal hyperintense area placed in the contralateral hemisphere. rADC mean values were higher in perihematomal hyperintense and in contralateral than in normal appearing areas (p < 0.001), with increased rADC mean levels in all regions examined.
Our findings show that rADC values indicative of vasogenic edema were present in the perihematomal area and in normal appearing brain tissue located both ipsilateral and contralateral to the hematoma, with lower levels in non-injured areas located in the T2 hyperintense rim around the clot.
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Fainardi, E. et al. (2006). Evaluation of acute perihematomal regional apparent diffusion coefficient abnormalities by diffusion-weighted imaging. In: Hoff, J.T., Keep, R.F., Xi, G., Hua, Y. (eds) Brain Edema XIII. Acta Neurochirurgica Supplementum, vol 96. Springer, Vienna. https://doi.org/10.1007/3-211-30714-1_20
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DOI: https://doi.org/10.1007/3-211-30714-1_20
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