Detection of intracranial aneurysms by three-dimensional time-of-flight magnetic resonance angiography

Neuroradiology. 1994 Apr;36(3):203-7. doi: 10.1007/BF00588131.

Abstract

The purpose of this study was to investigate the reliability of magnetic resonance angiography (MRA) for detection of intracranial aneurysms. Ninety-six consecutive patients who underwent both MRA using the three-dimensional time-of-flight technique (3D TOF) with the rephase/dephase subtraction method and conventional angiography were reviewed. MRA showed 22 aneurysms in 19 patients, and conventional angiography 28 aneurysms in 23 patients. The sensitivity of MRA was thus 79% for aneurysms in 83% of patients. MRA showed no aneurysm in 67 of 73 patients without aneurysms; its specificity was therefore 92%. The 6 false positive interpretations were suspected internal carotid artery aneurysms.

Publication types

  • Comparative Study

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aneurysm, Ruptured / diagnosis
  • Angiography, Digital Subtraction
  • Cerebral Angiography
  • Child
  • Female
  • Humans
  • Intracranial Aneurysm / diagnosis*
  • Magnetic Resonance Imaging / methods*
  • Male
  • Middle Aged
  • Retrospective Studies
  • Subarachnoid Hemorrhage / diagnosis