The role of contrast-enhanced MR angiography in the assessment of recently ruptured intracranial aneurysms: a comparative study

Neuroradiology. 2005 Oct;47(10):780-91. doi: 10.1007/s00234-005-1424-2. Epub 2005 Jul 30.

Abstract

We evaluated contrast-enhanced MR angiography (MRA) for the identification of recently ruptured cerebral aneurysms. We studied 23 aneurysms in 18 patients (age range 34-72 years) with aneurysms of the anterior (n = 17) and posterior (n = 6) circulation by comparing 3D time-of-flight (TOF), contrast-enhanced MRA and digital subtraction angiography (DSA). In four of 23 aneurysms, 3D-TOF did not show the lesion. Contrast-enhanced MRA successfully depicted all aneurysms except one. T1 contamination artefacts from subarachnoid or intraparenchymal haemorrhages were evident on the 3D-TOF images in six cases. The artefacts were completely eliminated on the contrast-enhanced MRA images by subtraction of the pre-contrast images. The diagnostic information in patients with subarachnoid haemorrhages (SAHs) provided by contrast-enhanced MRA was comparable to that provided by DSA.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Aneurysm, Ruptured / diagnosis*
  • Angiography, Digital Subtraction
  • Artifacts
  • Cerebral Angiography
  • Contrast Media
  • Diagnosis, Differential
  • Emergencies
  • Female
  • Humans
  • Image Processing, Computer-Assisted
  • Imaging, Three-Dimensional
  • Intracranial Aneurysm / diagnosis*
  • Magnetic Resonance Angiography*
  • Male
  • Middle Aged
  • Statistics, Nonparametric

Substances

  • Contrast Media