The prevalence of microhemorrhage on gradient-echo magnetic resonance imaging in acute lacunar infarction

Wouter J. Schonewille, Michael B. Singer, Scott W. Atlas, Stanley Tuhrim

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Introduction: Microhemorrhages seen on gradient-echo magnetic resonance imaging are thought to be a manifestation of small-vessel disease. It was the aim of our study to evaluate the prevalence of microhemorrhage for patients presenting with acute lacunar infarction. Methods: We obtained gradient-echo and diffusion-weighted magnetic resonance imaging as part of the acute stroke workup in 46 patients presenting with lacunar infarction. Results: Gradient-echo magnetic resonance imaging was abnormal in 24 of 46 (52%) patients. Microhemorrhage was seen in 21 patients (46%), 2 patients had multiple microhemorrhages and a frank hemorrhage, and 3 patients had frank hemorrhage in the absence of microhemorrhage. Prior symptomatic stroke was the only significant risk factor for the presence of microhemorrhages. Conclusion: Microhemorrhages are present in approximately half of patients with lacunar infarcts and appear to be a marker of severity of small-vessel disease.

Original languageEnglish
Pages (from-to)141-144
Number of pages4
JournalJournal of Stroke and Cerebrovascular Diseases
Volume14
Issue number4
DOIs
StatePublished - Jul 2005

Keywords

  • Diffusion
  • Gradient-echo
  • Lacunar infarction
  • Magnetic resonance imaging
  • Microbleeds

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