Complex-Shaped Platinum Coils for Brain Aneurysms: Higher Packing Density, Improved Biomechanical Stability, and Midterm Angiographic Outcome
A.K. Wakhlooa,b,c,
M.J. Gounisa,
J.S. Sandhud,
N. Akkawia,
A.E. Schenckd and
I. Linfantea,c
a Department of Radiology, University of Massachusetts Medical School, Worcester, Mass
b Department of Neurosurgery, University of Massachusetts Medical School, Worcester, Mass
c Department of Neurology, University of Massachusetts Medical School, Worcester, Mass
d Department of Radiology, University of Miami, Miami, Fla
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Fig 2. A, A 74-year-old woman with an asymptomatic wide-neck left middle cerebral artery aneurysm (size: 10 x 10 x 12 mm; neck: 7 mm).
B, Balloon-assisted coiling (arrows) with tight filling of the aneurysm and preservation of adjacent displaced M2 branches.
C, Postembolization angiogram shows complete occlusion of the aneurysm.
D, A 22-month follow-up angiogram shows no aneurysmal recanalization or coil compaction.
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Fig 3. A 62-year-old man with a ruptured wide-neck basilar tip aneurysm (size: 10 x 9 x 8 mm; neck: 6 mm).
A and B, Frontal and lateral views, respectively.
C and D, Control angiography after complete coiling (packing density: 34.4%).
E (right oblique view) and F, 8-month follow-up angiography and recanalization of the posterior, right lateral aspect of the aneurysm corresponding with the maximum hydrodynamic impingement zone in the main axis of the basilar artery; a coil compaction is noted (arrows).
G and H Control angiography after recoiling.
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