Article Text

other Versions

Download PDFPDF
Novel use of 4D-CTA in imaging of intranidal aneurysms in an acutely ruptured arteriovenous malformation: is this the way forward?
  1. Arun Chandran,
  2. Mark Radon,
  3. Shubhabrata Biswas,
  4. Kumar Das,
  5. Mani Puthuran,
  6. Hans Nahser
  1. Department of Neuroradiology, The Walton Centre NHS Foundation Trust, Liverpool, L9 7LJ, UK
  1. Correspondence to Dr Arun Chandran, The Walton Centre NHS Foundation Trust, Liverpool L97LJ, UK; Arun.Chandran{at}


Ruptured arteriovenous malformation (AVM) is a frequent cause of intracranial hemorrhage. The presence of associated aneurysms, especially intranidal aneurysms, is considered to increase the risk of re-hemorrhage. We present two cases where an intranidal aneurysm was demonstrated on four-dimensional CT angiography (time-resolved CT angiography) (4D-CTA). These features were confirmed by digital subtraction angiography (catheter arterial angiogram). This is the first report of an intranidal aneurysm demonstrated by 4D-CTA. 4D-CTA can offer a comprehensive evaluation of the angioarchitecture and flow dynamics of an AVM for appropriate classification and management.

  • Aneurysm
  • Arteriovenous Malformation
  • Angiography
  • CT Angiography
  • Hemorrhage

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.