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Efficacy of 3D-CT angiography in surgical simulation of intracranial aneurysms

  • S. Nagasawa
  • J. Deguchi
  • H. Tanaka
  • M. Arai
  • T. Ohta
Conference paper

Abstract

The efficacy of three-dimensional CT angiography (3D-CTA) in diagnosis and surgical planning was investigated in 38 patients with 48 intracranial aneurysms. Conformation of the diagnosis was possible in all aneurysms more than 2 mm in diameter by 3D-CTA, except those on the infraclinoid segment of the internal carotid artery. 3D-CTA showed configuartion of aneurysms and the neighbouring arterial and bony structures well. It was especially useful for: (1) multiple aneurysms, in which 3D-CTA gave good information on the accessibility of both far and near aneurysms on a single approach line; (2) giant aneurysms: the relations between the neck and parent artery were easily established by 3D-CTA images at arbitrary angles; (3) aneurysms near the skull base; and (4) aneurysms in the infraclinoid segment: the original axial images for 3D-CTA gave excellent information on structures in the extradural space.

key words

Intracranial aneurysm Computed tomography, Three-dimensional reconstruction Angiography Cerebrovascular disease 

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • S. Nagasawa
    • 1
  • J. Deguchi
    • 1
  • H. Tanaka
    • 1
  • M. Arai
    • 1
  • T. Ohta
    • 1
  1. 1.Department of NeurosurgeryOsaka Medical CollegeTakatsuki, 569, OsakaJapan

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