Dissecting and fusiform aneurysms of vertebro-basilar systems. MR imaging

Neuroradiology. 1990;32(4):272-9. doi: 10.1007/BF00593045.


The magnetic resonance (MR) findings of three cases with vertebro-basilar dissecting aneurysms (DA) were compared with those of two cases with vertebro-basilar fusiform aneurysms (FA). No abnormal findings, excepting a dilatation of a signal-void area corresponding to the arterial blood flow, were shown on the MR images in the patients with a FA. In contrast to the FA cases, various abnormalities were detected by the MR studies in all three DA cases. An intimal flap and a double lumen were demonstrated in one case. An intra-mural hematoma was shown in one case. A hematoma neighboring the parent artery was demonstrated in two cases. MR imaging was thought to be useful for detecting intracranial vascular lesions, such as a DA, and for discriminating between a DA and a FA.

Publication types

  • Case Reports
  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Aneurysm, Dissecting / diagnosis*
  • Aneurysm, Dissecting / diagnostic imaging
  • Basilar Artery* / diagnostic imaging
  • Cerebral Angiography
  • Diagnosis, Differential
  • Female
  • Humans
  • Intracranial Aneurysm / diagnosis*
  • Intracranial Aneurysm / diagnostic imaging
  • Magnetic Resonance Imaging
  • Male
  • Middle Aged
  • Vertebral Artery* / diagnostic imaging