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Neuroradiology

, Volume 47, Issue 7, pp 507–515 | Cite as

Surveillance of intracranial aneurysms treated with detachable coils: a comparison of MRA techniques

  • Richard I. FarbEmail author
  • Shudeshna Nag
  • James N. Scott
  • Robert A. Willinsky
  • Thomas R. Marotta
  • Walter J. Montanera
  • George Tomlinson
  • Karel G. terBrugge
Diagnostic Neuroradiology

Abstract

Two MRA techniques were evaluated for the follow-up of coiled intracranial aneurysms. Twenty-nine coiled aneurysms were evaluated for a total of 36 follow-up assessments using 3D time-of flight MRA (TOF MRA), an auto-triggered elliptic–centric-ordered three-dimensional gadolinium-enhanced MR angiogram (ATECO MRA), as well as a selective digital subtraction angiography (DSA), which served as the “gold standard”. Confident visualization was seen in 36 (100%) of ATECO MRAs and in 32 (89%) of the TOF MRAs. Eleven residual aneurysm components (RACs) greater than 2 mm were described on DSA. Of these, nine were seen on ATECO MRA (sensitivity of 81% and specificity of 88%) and four were seen on TOF MRA (sensitivity of 40% and specificity of 90%). The two RACs not seen on ATECO MRA both measured 3 mm. The six RACs not seen on TOF MRA measured 3, 4 and 5 mm. ATECO MRA provides a non-invasive reliable angiogram for the surveillance of coiled aneurysms and is superior to TOF MRA for this purpose.

Keywords

MRA Cerebral Aneurysm Endovascular Coiling IADSA 

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Richard I. Farb
    • 1
    Email author
  • Shudeshna Nag
    • 1
  • James N. Scott
    • 2
  • Robert A. Willinsky
    • 1
  • Thomas R. Marotta
    • 3
  • Walter J. Montanera
    • 3
  • George Tomlinson
    • 4
  • Karel G. terBrugge
    • 1
  1. 1.Division of Neuroradiology, Department of Medical Imaging, Toronto Western HospitalUniversity of TorontoTorontoCanada
  2. 2.Division of Neuroradiology, Department of Medical Imaging, Foothills Medical CentreUniversity of CalgaryCalgaryCanada
  3. 3.Division of Neuroradiology, Department of Medical Imaging, St. Michael’s HospitalUniversity of TorontoTorontoCanada
  4. 4.Department of MedicineUniversity Health Network, University of TorontoTorontoCanada

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