Document Detail

Long-term prospective follow-up of intracranial aneurysms treated with endovascular coiling using contrast-enhanced MR angiography.
MedLine Citation:
PMID:  20338984     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND PURPOSE: Catheter angiography has been the criterion standard for follow-up evaluation of coiled intracranial aneurysms. In our center, CE-MRA has been used to evaluate aneurysm recanalization. Our aim was to investigate the feasibility and usefulness of a CE-MRA protocol for following patients with intracranial aneurysms treated with endovascular coiling.
MATERIALS AND METHODS: From September 2003 to December 2006, 134 aneurysms were treated by endovascular coiling in 124 patients by using detachable coils. These patients were followed with CE-MRA at 3 months, 15 months, and 3 and 5 years. MRAs were analyzed by 2 interventional neuroradiologists. Findings were assigned to 3 categories: complete obliteration (class 1), residual neck (class 2), and residual aneurysm (class 3).
RESULTS: Initially, CE-MRA demonstrated 67 (50%) complete obliterations (class 1), 57 (41.79%) residual necks (class 2), and 8 (5.97%) residual aneurysms (class 3). No patient experienced rebleed during the follow-up period. A total of 214 patient-years of follow-up were obtained (range, 0-53 months). Two (1.49%) patients died after the follow-up, and 11 (8.21%) patients were lost to follow-up. On follow-up, 76 (56.72%) patients showed stable results. Fifty-six (41.79%) aneurysms showed change in their obliteration pattern. Of these 56, 47 demonstrated recanalization and 9 (6.72%) showed further obliteration. Most of the aneurysms that showed change in their obliteration remained stable on follow-up. Only 11 (8.21% of the total and 23.4% of those who showed recanalization) patients underwent recoiling or clipping.
CONCLUSIONS: CE-MRA can be used in routine practice to follow-up aneurysm recanalization noninvasively. CE-MRA permits close-interval follow-up and may show more filling of the aneurysm neck or sac than DSA.
J J S Shankar; Cheemun Lum; N Parikh; M dos Santos
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Publication Detail:
Type:  Clinical Trial; Journal Article     Date:  2010-03-25
Journal Detail:
Title:  AJNR. American journal of neuroradiology     Volume:  31     ISSN:  1936-959X     ISO Abbreviation:  AJNR Am J Neuroradiol     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-08-13     Completed Date:  2010-11-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003708     Medline TA:  AJNR Am J Neuroradiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1211-5     Citation Subset:  IM    
Department of Diagnostic Imaging, The Ottawa Hospital, Ottawa, Ontario, Canada.
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MeSH Terms
Aged, 80 and over
Contrast Media / diagnostic use*
Embolization, Therapeutic*
Feasibility Studies
Follow-Up Studies
Intracranial Aneurysm / mortality,  pathology*,  therapy*
Magnetic Resonance Angiography / methods*
Middle Aged
Prospective Studies
Risk Factors
Treatment Outcome
Young Adult
Reg. No./Substance:
0/Contrast Media

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