Intracranial Aneurysms Treated with Guglielmi Detachable Coils: Usefulness of 6-Month Imaging Follow-Up with Contrast-Enhanced MR Angiography
Jean-Yves Gauvrita,
Xavier Leclerca,
Mickael Pernodeta,
Boris Lubicza,
Jean-Paul Lejeuneb,
Didier Leysc and
Jean-Pierre Pruvoa
a Department of Neuroradiology, EA 2691 Salengro Hospital, University Hospital of Lille, Lille, France
b Department of Neurosurgery Salengro Hospital, University Hospital of Lille, Lille, France
c Department of Neurology Salengro Hospital, University Hospital of Lille, Lille, France
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FIG 1. A, DSA of the left internal carotid artery at 9 months after treatment of a 7-mm aneurysm of the anterior communicating artery. The frontal head view shows a large recanalization (arrow) classified as residual aneurysm (class 3).
B, Contrast-enhanced MR angiograph with MIP reconstruction in the frontal plane (arrow) demonstrates a residual aneurysm (class 3) in accordance with DSA findings.
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FIG 2. A, DSA of the left vertebral artery performed at 12 months after treatment of a 6-mm aneurysm of the left posterior inferior cerebellar artery. The frontal head view shows (arrow) an opacification of residual aneurysm (class 3).
B, Contrast-enhanced MR angiograph with MIP reconstruction in the frontal plane demonstrates (arrow) a residual aneurysm (class 3).
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FIG 3. A, DSA of the left internal carotid artery at 11 months after treatment of a 3-mm aneurysm of the anterior communicating artery. The frontal head view shows a residual neck (arrow) of 2 mm-diameter (class 2).
B, Contrast-enhanced MR angiograph with MIP reconstruction in the frontal plane demonstrates (arrow) a residual neck (class 2) in accordance with DSA.
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FIG 4. A, DSA of the left internal carotid artery performed at 12 months after treatment of a 3-mm aneurysm of the anterior communicating artery. The frontal head view shows a complete obliteration (class 1) at the site of the anterior communicating artery (arrow).
B, Contrast-enhanced MR angiograph with MIP reconstruction in the frontal view demonstrate a complete obliteration in agreement with DSA findings with minor coil artifact.
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FIG 5. A, DSA of the left internal carotid artery performed at 12 months after treatment of a 3-mm aneurysm of the anterior communicating (arrow). The frontal head view shows no residual neck or aneurysm (class 1).
B, Contrast-enhanced MR angiograph with MIP reconstruction in the frontal plane shows a hypersignal (arrow) at the site of the anterior communicating artery misinterpreted as a residual neck (class 2).
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