Three-dimensional reconstructed rotational digital subtraction angiography in planning treatment of intracranial aneurysms |
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Authors: | U Missler C Hundt M Wiesmann T Mayer H Brückmann |
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Affiliation: | Department of Neuroradiology, Klinikum Grosshadern, Ludwig-Maximilians-Universit?t, Marchioninistrasse 15, 81377 Munich, Germany, DE
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Abstract: | We evaluated three-dimensional (3D) reconstructions of 200 ° rotational digital subtraction angiography (DSA) images for
their contributions to improving the safety of endovascular embolization of intracranial aneurysms. Standard DSA and 200 °
rotational DSA were performed in 40 adult patients (aged 21–77 years) with 45 intracranial aneurysms. Information obtainable
from standard DSA and 3D-DSA images about aneurysm shape and size was compared. In 40 (89 %) of the 45 aneurysms 3D-DSA gave
additional information about the anatomy of the aneurysm. In 17 (43 %) of these cases aneurysm anatomy could be visualized
better on 3D-DSA than on standard DSA images. In three cases only 3D-DSA images showed blood vessels originating from the
aneurysm. Reconstructed 3D images were also helpful in visualizing partially clipped aneurysms. On maximum-intensity projection
images it was even possible to depict previously embolized aneurysms. Blood vessels originating from the aneurysm are visible
on 3D-DSA images, and even previously clipped aneurysms can be visualized well. Rotational DSA with 3D reconstruction is a
helpful tool in the assessment of intracranial aneurysms.
Received: 7 September 1999; Revised: 26 November 1999; Accepted: 26 November 1999 |
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Keywords: | : Aneurysm – Intracranial – Angiography – Digital subtraction |
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