Pulsatile increases in aneurysm size determined by cine phase-contrast MR angiography

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46 Scopus citations

Abstract

The internal flow dynamics were assessed in 16 cerebral aneurysms by cine phase-contrast magnetic resonance (MR) angiography. Six of the aneurysms were associated with subarachnoid hemorrhage and 10 were unruptured. The ruptured aneurysms demonstrated a 51% ± 10% increase in volume between systole and diastole, while the increase in volume of the unruptured aneurysms was 17.6% ± 8.9% (p < 0.005). The ruptured aneurysms demonstrated an approximate 1.0- to 1.5-mm increase in diameter in at least one dimension during systole. There was no relationship between aneurysm size and volumetric increases. These findings suggest that cine phase-contrast MR angiography can detect structural weakness in the aneurysmal wall. Imaging techniques that can evaluate aneurysmal wall dynamics may be useful in therapeutic planning.

Original languageEnglish (US)
Pages (from-to)879-883
Number of pages5
JournalJournal of neurosurgery
Volume78
Issue number6
DOIs
StatePublished - Jan 1 1993

Keywords

  • aneurysm rupture
  • cerebral aneurysm
  • magnetic resonance angiography
  • risk factor
  • subarachnoid hemorrhage

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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