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Comparative Study
. 2005 Jan;26(1):163-5.

3D rotational angiography: use of propeller rotation for the evaluation of intracranial aneurysms

Jean-Yves Gauvrit  1 , Xavier Leclerc, Maximilien Vermandel, Boris Lubicz, David Despretz, Jean-Paul Lejeune, Jean Rousseau, Jean-Pierre Pruvo
Affiliations
Comparative Study

3D rotational angiography: use of propeller rotation for the evaluation of intracranial aneurysms

Jean-Yves Gauvrit et al. AJNR Am J Neuroradiol. 2005 Jan.

Abstract

We compared two methods of 3D digital subtraction angiography (DSA)--propeller and standard rotation--for the assessment of aneurysmal morphology and its relation to neighboring vessels. Aneurysms were correctly visualized and localized with both techniques. 3D DSA with propeller rotation technique seems to be effective and allows us to reduce the amount of contrast material related to a shortened acquisition time. Technical progress including propeller rotation allows a larger range of rotation and faster rotational speeds.

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Figures

F<sc>ig</sc> 1.
Fig 1.
Standard roll rotational angiography mode. C-arm is placed perpendicular to the head axis (top). Range of rotational angiography extends over 180° (right oblique 90°, left image, and left oblique 90°, right image).
F<sc>ig</sc> 2.
Fig 2.
Propeller rotational angiography mode. C-arm remains in the same position as with conventional angiography (top). Range of rotational angiography extends over 240° (right oblique 120°, left image, and left oblique 120°, right image).
See this image and copyright information in PMC

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