White Matter Survival within and around the Hematoma: Quantification by MRI in Patients with Intracerebral Hemorrhage
| Autor: | Joseph R Linzey, Neeraj Chaudhary, Richard F. Keep, Guohua Xi, Aditya S Pandey, Thomas L. Chenevert, Nemanja Novakovic, Joseph J. Gemmete, Jonathan P. Troost |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male medicine.medical_specialty 030204 cardiovascular system & hematology Biochemistry Microbiology Article White matter Lesion 03 medical and health sciences 0302 clinical medicine Hematoma Fractional anisotropy medicine Humans magnetic resonance imaging cardiovascular diseases Molecular Biology Aged Cerebral Hemorrhage Intracerebral hemorrhage Aged 80 and over brain edema medicine.diagnostic_test Cell Death business.industry Magnetic resonance imaging Middle Aged medicine.disease White Matter intracerebral hemorrhage QR1-502 medicine.anatomical_structure Diffusion Tensor Imaging Corticospinal tract white matter injury Anisotropy Female Radiology medicine.symptom business fractional anisotropy maps 030217 neurology & neurosurgery Diffusion MRI |
| Zdroj: | Biomolecules Biomolecules, Vol 11, Iss 910, p 910 (2021) Volume 11 Issue 6 |
| ISSN: | 2218-273X |
| Popis: | White matter (WM) injury and survival after intracerebral hemorrhage (ICH) has received insufficient attention. WM disruption surrounding the hematoma has been documented in animal models with histology, but rarely in human ICH with noninvasive means, like magnetic resonance imaging (MRI). A few human MRI studies have investigated changes in long WM tracts after ICH remote from the hematoma, like the corticospinal tract, but have not attempted to obtain an unbiased quantification of WM changes within and around the hematoma over time. This study attempts such quantification from 3 to 30 days post ictus. Thirteen patients with mild to moderate ICH underwent diffusion tensor imaging (DTI) MRI at 3, 14, and 30 days. Fractional anisotropy (FA) maps were used to calculate the volume of tissue with FA > 0.5, both within the hematoma (lesion) and in the perilesional tissue. At day 3, the percentages of both lesional and perilesional tissue with an FA > 0.5 were significantly less than contralateral, unaffected, anatomically identical tissue. This perilesional contralateral difference persisted at day 14, but there was no significant difference at day 30. The loss of perilesional tissue with FA > 0.5 increased with increasing hematoma size at day 3 and day 14. All patients had some tissue within the lesion with FA > 0.5 at all time points. This did not decrease with duration after ictus, suggesting the persistence of white matter within the hematoma/lesion. These results outline an approach to quantify WM injury, both within and surrounding the hematoma, after mild to moderate ICH using DTI MRI. This may be important for monitoring treatment strategies, such as hematoma evacuation, and assessing efficacy noninvasively. |
| Databáze: | OpenAIRE |
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