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The Rabbit Blood-shunt Model for the Study of Acute and Late Sequelae of Subarachnoid Hemorrhage: Technical Aspects
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Late CT manifestations in spontaneous lobar hematoma

C Y Sung1, N S Chu

  • 1Department of Neurology, Chang Gung Medical College and Memorial Hospital, Taipei, Taiwan. Chu060@CGMC.org.tw

Journal of Computer Assisted Tomography
|November 17, 2001
PubMed

Insights

Late CT scans reveal that spontaneous lobar hematomas often resolve or transform into pseudoinfarcts, with residual slit cavities being uncommon. This finding aids in understanding the long-term imaging of cerebral hemorrhage.

Area of Science:

  • Neuroradiology
  • Neurology
  • Medical Imaging

Background:

  • Spontaneous lobar hematomas are a significant cause of stroke.
  • Understanding their long-term imaging characteristics is crucial for diagnosis and management.

Purpose of the Study:

  • To characterize the late computed tomography (CT) findings of spontaneous lobar hematomas.
  • To identify common residual changes following lobar hemorrhage.

Main Methods:

  • Serial CT scans were analyzed in 75 patients with spontaneous lobar hematomas.
  • Initial CT scans were performed during the acute phase, with follow-up scans at least 6 months later.

Main Results:

  • A significant proportion of hematomas showed no residual trace (27%) or developed into pseudoinfarcts (27%).
  • Residual cavities, either slit-like (19%) or small round (15%), were observed.
  • Other findings included ventricular deformity (11%) and calcification (3%).

Conclusions:

  • The typical slit-like cavity is an uncommon late manifestation of lobar hematomas.
  • Hematoma resolution patterns vary, including complete disappearance, cavity formation, or pseudoinfarct development, influenced by initial size.
Abstract

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