Validation of Wall Enhancement as a New Imaging Biomarker of Unruptured Cerebral Aneurysm.

Abstract:

:Background and Purpose- High-resolution vessel wall magnetic resonance imaging is a promising technique for assessing wall structures of unruptured intracranial aneurysms (UIAs). However, the relationship between aneurysmal high-resolution vessel wall magnetic resonance imaging features and their histopathologic mechanism remains poorly understood. Methods- From February 2016 to February 2018, a total of 19 men and 28 women with 54 UIAs treated surgically were prospectively enrolled. The intraoperative observed gross pathology of the aneurysmal wall was compared with the enhancement features on high-resolution vessel wall magnetic resonance imaging. Specimens of the UIAs were harvested for histopathologic and immunohistochemistry analysis. Results- An irregular shape and large size was significantly related to UIA wall enhancement. Both uniform and focal wall enhancement may demonstrate the inflammation processes of UIA walls, although the latter may indicate more atherosclerotic plaque formation. Conclusions- Different high-resolution vessel wall magnetic resonance imaging enhancement features may represent variable inflammation status of a UIA wall, which may provide new insights into assessing the UIA wall structure and optimizing treatment.

journal_name

Stroke

journal_title

Stroke

authors

Quan K,Song J,Yang Z,Wang D,An Q,Huang L,Liu P,Li P,Tian Y,Zhou L,Zhu W

doi

10.1161/STROKEAHA.118.024195

subject

Has Abstract

pub_date

2019-06-01 00:00:00

pages

1570-1573

issue

6

eissn

0039-2499

issn

1524-4628

journal_volume

50

pub_type

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