PT  - JOURNAL ARTICLE
AU  - Gauvrit, Jean-Yves
AU  - Leclerc, Xavier
AU  - Pernodet, Mickael
AU  - Lubicz, Boris
AU  - Lejeune, Jean-Paul
AU  - Leys, Didier
AU  - Pruvo, Jean-Pierre
TI  - Intracranial Aneurysms Treated with Guglielmi Detachable Coils: Usefulness of 6-Month Imaging Follow-Up with Contrast-Enhanced MR Angiography
DP  - 2005 Mar 01
TA  - American Journal of Neuroradiology
PG  - 515--521
VI  - 26
IP  - 3
4099  - http://www.ajnr.org/content/26/3/515.short
4100  - http://www.ajnr.org/content/26/3/515.full
SO  - Am. J. Neuroradiol.2005 Mar 01; 26
AB  - BACKGROUND AND PURPOSE: This study was undertaken to assess the utility of contrast-enhanced MR angiography at 6 months after endovascular treatment of intracranial aneurysms with Guglielmi detachable coils.METHODS: Contrast-enhanced MR angiography was performed in 47 patients at 6 and 12 months after endovascular treatment of intracranial aneurysms (48 aneurysms). Digital subtraction angiography (DSA) was used as reference and was performed at 12 months after the treatment in all patients. MR angiographs were analyzed independently by two senior radiologists. DSA and MR angiography findings were assigned into one of three categories: complete obliteration, residual neck, or residual aneurysm.RESULTS: All examinations were assessable. Interobserver agreement was judged as very good for contrast-enhanced MR angiography (κ = 0.96), with one discrepancy between examiners. Comparison between MR angiography at 6 months and DSA at 12 months showed an excellent agreement between techniques (κ = 0.93). Two cases of complete occlusion at DSA were misclassified as a residual neck at 6-month MR angiography. All aneurysm recanalizations at DSA already were detected on MR angiography at 6 months. The size of aneurysm recanalization did not increase between both MR angiographs performed at 6 and 12 months.CONCLUSION: Contrast-enhanced MR angiography after selective embolization of intracranial aneurysm seems to predict properly early aneurysm recanalizations.