MR angiography in the follow-up of intracranial aneurysms treated with Guglielmi detachable coils: systematic review and meta-analysis

Abstract

The results of this study suggest that both TOF-MRA and CE-MRA achieve a moderate to high diagnostic performance. However, the findings should be interpreted with caution because the included studies were of moderate methodological quality and all pooled estimates were subject to heterogeneity. More well-designed studies are required to confirm the current results and MRA at higher field strength (>1.5 T) needs to be further explored.

Follow-Up of Coiled Intracranial Aneurysms: Comparison of 3D Time-of-Flight MR Angiography at 3T and 1.5T in a Large Prospective Series

“…7 Our study was designed by using the criteria of Kwee and Kwee 7 to obtain a high methodologic quality. It was conducted from April 2006 to September 2008.…”

“…4 The use of MRA at 1.5T has been widely evaluated, showing a moderate-to-high diagnostic performance for both TOF-MRA and CE-MRA. [5][6][7] Both 3D TOF-MRA and CE-MRA have also been evaluated at 3T, also showing good diagnostic performance. [7][8][9][10] Direct comparison of MRA performed at 3T and 1.5T is relatively scarce, has been conducted in small series of patients, and is associated with contradictory results.…”

“…[5][6][7] Both 3D TOF-MRA and CE-MRA have also been evaluated at 3T, also showing good diagnostic performance. [7][8][9][10] Direct comparison of MRA performed at 3T and 1.5T is relatively scarce, has been conducted in small series of patients, and is associated with contradictory results. [11][12][13] To compare the value of 3D-TOF at 1.5T and 3T, a prospective consecutive monocentric study was conducted in patients having follow-up examinations including DSA for coiled intracranial aneurysms.…”

A Prospective Trial of 3T and 1.5T Time-of-Flight and Contrast-Enhanced MR Angiography in the Follow-Up of Coiled Intracranial Aneurysms

“…Since the Kwee and Kwee meta-analysis, 6 there have been several other studies published on the topic of MRA for coiled intracranial aneurysms. [7][8][9][10][11][12][13][14][15][16][17][18][19]24 In summary, some of these studies showed results similar to those in our current study, and some showed the superior performance of MRA relative to DSA compared with that in our current study, though some of these differences are very likely related to the differences in the aneurysm occlusion scales used.…”

“…There remains ambiguity over the overall performance of MRA relative to DSA in the depiction of coiled aneurysm remnants and in the relative performance of TOF-MRA, bolus gadolinium CE-MRA, and MRA performed at the field strengths of 1.5 T versus at 3T, with different groups reporting conflicting results. [6][7][8][9][10][11][12][13][14][15][16][17][18][19] We wished to prospectively study the performance of MRA relative to DSA for the clinical indication of the follow-up of coiled intracranial aneurysms, and more specifically, we wished to study the relative performance of the 2 major types of MRA at 2 popular main magnetic field strengths, 1.5 and 3T. We present the results of a prospective clinical trial comparing the accuracies of 4 different MRA techniques, TOF and CE-MRA both at 1.5T and at 3T, by using DSA as the standard of reference in the follow-up of coiled intracranial aneurysms.…”