ICH features on head CT associated with the risk of hematoma expansion
ICH features on head CT associated with the risk of hematoma expansion
Noncontrast head CT showing acute ICH with signs associated with the risk of subsequent hematoma expansion: irregular shape (A), island sign (B; arrow), hypodensity (C; dashed arrow), heterogeneity (D), black hole sign (E; thick arrow), swirl sign (F), and blend sign (G; arrowhead).