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RT Journal Article
SR Electronic
T1 Angiographic Evidence of Aneurysm Neck Healing Following Endovascular Treatment with Bioactive Coils
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 912
OP 914
VO 26
IS 4
A1 Gonzalez, Nestor R.
A1 Patel, Aman B.
A1 Murayama, Yuichi
A1 Viñuela, Fernando
YR 2005
UL http://www.ajnr.org/content/26/4/912.abstract
AB Summary: A new angiographic finding in intracranial aneurysms embolized with Matrix coils is described. Two illustrative cases with a well-defined radiolucent separation between the coil mass and the parent artery are presented. To the best of our knowledge, this is the first report in humans of this finding. On the basis of prior histopathologic studies, this finding, which we call the “white-collar sign,” may indicate the formation of a thick connective tissue barrier between aneurysm and artery that prevents any further aneurysmal filling.