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Related Experiment Videos

MR imaging of brainstem hemorrhage.

M Komiyama1, M Baba, A Hakuba

  • 1Department of Neurosurgery, Baba Memorial Hospital, Osaka, Japan.

AJNR. American Journal of Neuroradiology
|March 1, 1988
PubMed
Summary

Magnetic resonance (MR) imaging effectively tracks brainstem hemorrhage evolution over time. MR imaging demonstrates superior clinical efficacy for detecting hemorrhage compared to CT, except in the acute phase.

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Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Brainstem hemorrhage diagnosis and monitoring are critical for patient outcomes.
  • Understanding the temporal evolution of brainstem hemorrhage on MR imaging aids clinical management.

Purpose of the Study:

  • To characterize the chronologic changes in the MR appearance of brainstem hemorrhage.
  • To evaluate the clinical efficacy of MR imaging in detecting brainstem hemorrhage.

Main Methods:

  • A 0.5-T MR scanner was used to examine 15 patients with brainstem hemorrhage.
  • Inversion-recovery (IR) and T2-weighted spin-echo (SE) sequences were employed.

Main Results:

  • Acute stage (up to 6 days): Hematomas showed variable intensity on IR and SE images.
  • Subacute stage (7 days to 2 months): Hematomas became hyperintense on both IR and SE images.
  • Chronic stage (>2 months): Hematomas "disappeared" with hypointense parenchyma on both sequences.

Conclusions:

  • MR imaging reveals distinct, time-dependent changes in brainstem hemorrhage appearance.
  • MR imaging offers superior detection of hemorrhage compared to CT, particularly in subacute and chronic stages.

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