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[Perfusion-MRI in cerebral infarct]

T Hagen1, K Bartylla, M Stoll

  • 1Abteilung für Neuroradiologie, Universität des Saarlandes.

Der Radiologe
|March 14, 1998
PubMed
Summary
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Perfusion MRI reveals distinct hemodynamic changes in acute cerebral stroke patients. This technique helps understand compensatory mechanisms in stroke by analyzing blood flow and volume.

Area of Science:

  • Neuroimaging
  • Radiology
  • Cerebrovascular Diseases

Context:

  • Acute cerebral stroke impacts brain hemodynamics.
  • Understanding these changes is crucial for diagnosis and treatment.
  • Perfusion MRI offers detailed insights into cerebral blood flow and volume.

Purpose:

  • To investigate hemodynamic changes in acute cerebral stroke patients using perfusion MRI.
  • To quantify regional cerebral blood flow (rCBF) and regional cerebral blood volume (rCBV).
  • To analyze perfusion parameters in the infarct core, peri-infarction zone, and contralateral hemisphere.

Summary:

  • Perfusion MRI was performed on 12 acute middle cerebral artery stroke patients.
  • Calculated parameters included mean transit time, rCBF, and rCBV.

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  • Results showed reduced rCBF and rCBV in the infarct, with increased rCBV in peri-infarct tissue. Luxury perfusion was observed in two cases.

    • Impact:

    • Perfusion MRI effectively differentiates perfusion disorders in acute stroke.
    • Findings aid in elucidating pathophysiological compensation mechanisms.
    • Provides quantitative data for clinical assessment and research.