scholarly journals Follow-Up of Coiled Cerebral Aneurysms at 3T: Comparison of 3D Time-of-Flight MR Angiography and Contrast-Enhanced MR Angiography

2008 ◽  
Vol 29 (8) ◽  
pp. 1530-1536 ◽  
Author(s):  
N. Anzalone ◽  
F. Scomazzoni ◽  
M. Cirillo ◽  
C. Righi ◽  
F. Simionato ◽  
...  
2009 ◽  
Vol 31 (5) ◽  
pp. 912-918 ◽  
Author(s):  
T.J. Kaufmann ◽  
J. Huston ◽  
H.J. Cloft ◽  
J. Mandrekar ◽  
L. Gray ◽  
...  

2012 ◽  
Vol 18 (3) ◽  
pp. 275-283 ◽  
Author(s):  
R. Agid ◽  
M. Schaaf ◽  
Ri. Farb

This study compared the accuracy of contrast-enhanced MR angiography (CE-MRA) to intraarterial cerebral angiography (IA-DSA) for assessment of intracranial aneurysms after stent-assisted coiling and to check if the presence of a stent in the parent artery diminishes the accuracy of CE-MRA. Consecutive patients with cerebral aneurysms treated by stent-assisted coiling were evaluated retrospectively. Matching follow-up CE-MRA and IA-DSA were evaluated separately. Evaluation included the presence of aneurysmal remnant, patency and stenosis of parent artery. Twenty-seven patients with 28 aneurysms and 33 matched CE-MRA and IA-DSA studies were evaluated. Nineteen aneurysmal remnants were seen on CE-MRA and 16 on IA-DSA. CE-MRA diagnosed three aneurysmal remnants not appreciated on IA-DSA. Five other remnants were larger on CE-MRA than IA-DSA. None of the remnants were missed on CE-MRA. Parent arteries were patent on both modalities. CE-MRA showed false stenosis of the stented artery in six cases and exaggerated stenosis in two. In 18 cases, CE-MRA showed a short focal “pseudo-stenosis” where the stent's marker bands were located. This was noted whenever the stent's marker bands were located in an artery with luminal diameter ≤2 mm and was called “marker band effect”. CE-MRA is an accurate technique for follow-up of aneurysms post stent-assisted coiling with excellent depiction of remnants in spite of the presence of a stent. Apparent stenosis of the stented parent artery on CE-MRA is often false or exaggerated. “Marker band effect” should be recognized as an artifact that appears when stent's marker bands are in a small artery.


2013 ◽  
Vol 54 (5) ◽  
pp. 493-497 ◽  
Author(s):  
Yasuhiko Iryo ◽  
Ichiro Ikushima ◽  
Toshinori Hirai ◽  
Kazuchika Yonenaga ◽  
Yasuyuki Yamashita

2005 ◽  
Vol 21 (2) ◽  
pp. 97-102 ◽  
Author(s):  
Gordon F. Gibbs ◽  
John Huston ◽  
Matthew A. Bernstein ◽  
Stephen J. Riederer ◽  
Robert D. Brown

2016 ◽  
Vol 32 (5) ◽  
pp. 825-832 ◽  
Author(s):  
Jonathan R. Weir-McCall ◽  
Richard D. White ◽  
Prasad G. Ramkumar ◽  
Stephen J. Gandy ◽  
Faisel Khan ◽  
...  

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