A novel grading scale for the angiographic assessment of intracranial aneurysms treated using flow diverting stents

Interv Neuroradiol. 2010 Jun;16(2):133-7. doi: 10.1177/159101991001600204. Epub 2010 Jul 19.


Flow diverting stents are emerging as a treatment option for difficult intracranial aneurysms. Current grading scales for assessment of angiographic outcomes following aneurysm treatment do not apply to aneurysms treated by flow diversion. We propose a novel grading scale based on the degree of angiographic filling and contrast stasis. This scale will facilitate communication and standardize reporting of outcomes following flow diversion treatments.

MeSH terms

  • Cerebral Angiography / methods*
  • Cerebrovascular Circulation*
  • Humans
  • Intracranial Aneurysm / diagnostic imaging*
  • Intracranial Aneurysm / therapy*
  • Predictive Value of Tests
  • Severity of Illness Index*
  • Stents*
  • Subarachnoid Hemorrhage / prevention & control