Strokes on MRI
ㅤ | HYPER-ACUTE | ACUTE | SUBACUTE (>48h) | CHRONIC |
T1 | ㅤ | ㅤ | ㅤ | ㅤ |
T1+c | ㅤ | ㅤ | ㅤ | ㅤ |
T2 | ㅤ | ㅤ | ㅤ | ㅤ |
FLAIR | ㅤ | bright | ㅤ | ㅤ |
Hemorrhage on MRI
T1
BRIGHT | DARK |
fat melanin Onyx subacute blood (>48 hr) | CSF most pathology |
T1+c
T2
FLAIR (FLuid-Attenuated Inversion Recovery)
- T2 minus CSF
- good for demonstrating CSF abnormalities
- FLAIR is best sequence for detecting acute SAH
BRIGHT | DARK |
MS plaques tumors edema encephalomalacia gliosis acute infarcts | ㅤ |
Miscellaneous
- aneurysm clips 1990 and after are MRI compatible
Made with Bullet