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

Kaufmann, Timothy J.; Huston, John; Cloft, Harry J.; Mandrekar, Jay; Gray, Linda; Bernstein, Matt A.; Atkinson, John L.D.; Kallmes, David F.

doi:10.3174/ajnr.a1932

Cited by 80 publications

(70 citation statements)

References 24 publications

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“…[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. In this group of patients, 3D TOF-MRA was performed at both 3T and 1.5T.…”

Section: Abbreviationsmentioning

confidence: 99%

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

Piérot

Portefaix

Gauvrit

et al. 2012

AJNR Am J Neuroradiol

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Section: Abbreviationsmentioning

confidence: 99%

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

Piérot

Portefaix

Gauvrit

et al. 2012

AJNR Am J Neuroradiol

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“…About CE-MRA, a trend toward higher performance was observed at 3T 26,33 and with CE-MRA better able to distinguish aneurysm remnant from neck remnant than TOF-MRA. 33 Further data on this topic are needed.…”

Section: Coiled Aneurysmsmentioning

confidence: 91%

“…32 With TOF-MRA, coils are visible and appear as a signal void created by artifacts because of platinum (which is absent or less visible with CE-MRA). 33 These slight artifacts did not hamper recurrence identification and were lower at 3T than at 1.5T, 31,32 because of the fact that higher-field strength provides a better signal:noise ratio and a superior spatial resolution.…”

Section: Coiled Aneurysmsmentioning

confidence: 99%

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Imaging Follow-Up of Intracranial Aneurysms Treated by Endovascular Means

Soize

Gawlitza

Raoult

et al. 2016

Stroke

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“…Data from the literature are partly incoherent in showing the advantage of CEMRA in aneurysms patency depiction, partly due to the small sample size in the series [3,4,6,7,9,10,12]; nevertheless there is a general agreement in recognizing the advantage of contrast acquisitions in the better depiction of aneurysm remnant either small or large.…”

Section: Introductionmentioning

confidence: 99%

Longitudinal follow up of coiled intracranial aneurysms: the impact of contrast enhanced MRA in comparison to 3DTOF MRA at 3T

Anzalone¹,

Filippis²,

Scomazzoni³

et al. 2015

Neurovasc Imaging

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Background: The role of 3DTOF MRA in the follow up (FU) of coiled cerebral aneurysms is well established. Though CEMRA (Contrast Enhanced Magnetic Resonance Angiography) has demonstrated to be superior to 3DTOF MRA in showing aneurysms residual patency, its role is still debated. The aim of this study was to verify if there is an added value of CEMRA in the long term follow up of coiled treated aneurysms. Methods: Sixty-four cerebral aneurysms treated with GDC coils regularly followed up with 3DTOF and CEMRA at 3T every year for at least four years were included in the study. Both MR exams were evaluated and scored according to Montreal scale. Residual patency rates and modifications during follow up as depicted by the two techniques on the three item score of the Montreal scale (TO = total occlusion, NR = neck remnant and AR = aneurysm remnant) were registered along with management decisions. Intertechnique agreement was evaluated with respect to patency scoring in earlier and later stages of FU. Moreover the predictive value of earlier scores for both acquisitions with respect to management decision was assessed. Results: At 1 year FU, TO to NR to AR score ratios were 31/23/10 and 22/31/11 for 3DTOF and CEMRA respectively, whereas at 4 years FU they evolved to 28/22/14 and 19/28/17 respectively. Fifteen patencies (all AR) out of 64 aneurysms were judged suitable of retreatment evaluation during FU and 8 retreatments were effectively performed after overall benefit/risk ratio considerations. All 15 reopenings were equally depicted by both techniques except one that was depicted earlier on CEMRA. Among the 9 TO at TOF MRA and NR at CEMRA at 1 year, 3 cases enlarged to NR at TOF at 4 years, most remained stable. Among the 22 cases judged NR at 1 years with both techniques, 3 cases showed enlargement at both techniques, while in other 3 cases AR was evident only at 3DCEMRA and they were not retreated. Conclusions: CEMRA superiority in depiction of intracranial aneurysms recanalization is confirmed by our data. Nevertheless a clear impact in patient management is apparently not evident. Evidence of occlusion at 3DTOF FU may not need the addition of a CEMRA study.

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

Cited by 80 publications

References 24 publications

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

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

Imaging Follow-Up of Intracranial Aneurysms Treated by Endovascular Means

Longitudinal follow up of coiled intracranial aneurysms: the impact of contrast enhanced MRA in comparison to 3DTOF MRA at 3T

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