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Comparison of perihematomal perfusion in deep and lobar intracerebral hemorrhage



Hypoperfusion in the perihematomal rim is common in acute intracerebral hemorrhage (ICH) but its determinants remain incompletely characterized. Despite known biological differences between deep and lobar ICH, the association between ICH location and cerebral perfusion has not been investigated. We tested the hypothesis that perihematomal perfusion differs between deep and lobar ICH.


Prospectively collected cohort of subjects with primary spontaneous ICH undergoing CT perfusion on admission. Cerebral blood flow (CBF), blood volume (CBV), and mean transit time (MTT) were measured in the manually outlined perihematomal low-density area. The association between perihematomal perfusion and ICH location was explored with multivariable linear regression.


A total of 155 patients were enrolled (59 with a lobar bleeding). In univariate analysis, median perihematomal CBF and CBV were lower in lobar ICH compared with deep ICH (23.8 vs 33.4 mL/100 g/min, p = 0.001 and 1.7 vs 2.3 mL/100 g, p = 0.001, respectively). Lobar ICH location remained inversely associated with CBF (β = − 0.17, p = 0.038) and CBV (β = − 0.19, p = 0.023) after adjustment for confounders in linear regression.


Lobar ICH location is inversely related with perihematomal CBF and CBV. Further studies are needed to confirm this association and define the underlying biological mechanisms.

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Correspondence to Andrea Morotti.

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Morotti, A., Busto, G., Bernardoni, A. et al. Comparison of perihematomal perfusion in deep and lobar intracerebral hemorrhage. Neuroradiology 62, 257–261 (2020).

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  • Intracerebral hemorrhage
  • Cerebral blood flow
  • CT perfusion
  • Hemorrhage location