MR angiography at 3 T of peripheral arterial disease: a randomized prospective comparison of gadoterate meglumine and gadobutrol
Objective: This large-scale randomized study aimed to show the noninferiority in terms of diagnostic performance of gadoterate meglumine-enhanced versus gadobutrol-enhanced 3-T MR angiography (MRA) using digital subtraction angiography (DSA) as the reference standard in patients with peripheral arte...
Gespeichert in:
| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
June 2015
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| In: |
American journal of roentgenology
Year: 2015, Jahrgang: 204, Heft: 6, Pages: 1311-1321 |
| ISSN: | 1546-3141 |
| DOI: | 10.2214/AJR.14.12604 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.2214/AJR.14.12604 Verlag, kostenfrei, Volltext: https://www-ajronline-org.ezproxy.medma.uni-heidelberg.de/doi/10.2214/AJR.14.12604 
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| Verfasserangaben: | Christian Loewe, Javier Arnaiz, Denis Krause, Luis Marti-Bonmati, Stefan Haneder, Ulrich Kramer, for the DALIA study group |
MARC
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| 245 | 1 | 0 | |a MR angiography at 3 T of peripheral arterial disease |b a randomized prospective comparison of gadoterate meglumine and gadobutrol |c Christian Loewe, Javier Arnaiz, Denis Krause, Luis Marti-Bonmati, Stefan Haneder, Ulrich Kramer, for the DALIA study group |
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| 520 | |a Objective: This large-scale randomized study aimed to show the noninferiority in terms of diagnostic performance of gadoterate meglumine-enhanced versus gadobutrol-enhanced 3-T MR angiography (MRA) using digital subtraction angiography (DSA) as the reference standard in patients with peripheral arterial occlusive disease (PAOD). Subjects and methods: In this prospective international randomized double-blind phase IV trial, 189 patients were enrolled. Of them, 156 could be included in the per-protocol population for on-site assessments and 154 for off-site readings. Subjects underwent peripheral MRA, after injection of 0.1 mmol/kg of either gadoterate meglumine or gadobutrol, and DSA within 30 days. The diagnostic accuracy was evaluated and compared using a noninferiority analysis. Secondary endpoints included sensitivity, specificity, diagnostic confidence, contrast-to-noise ratio, and signal-to-noise ratio evaluations. Results: The percentage agreement between MRA and DSA for stenosis detection was similar for on-site readings for both groups (mean ± SD, 80.6% ± 16.1% with gadoterate meglumine vs 77.1% ± 19.6% with gadobutrol; 3.5% difference), and the same was true for off-site readings (73.9% ± 16.9% with gadoterate meglumine vs 75.1% ± 13.8% with gadobutrol; 1.1% difference). The noninferiority of gadoterate meglumine to gadobutrol was shown for both on- and off-site readings. Sensitivity in detecting significant stenosis (> 50%) was 72.3% for gadoterate meglumine versus 70.6% for gadobutrol, whereas specificity (92.6% vs 92.3%), diagnostic confidence (87.0% vs 86.0%), signal-to-noise ratio (165.5 vs 161.0), and contrast-to-noise ratio (159.5 vs 155.3) did not differ statistically significantly between the two groups. Conclusion: Gadoterate meglumine was found to be not inferior to gadobutrol in terms of diagnostic performance in patients with PAOD undergoing 3-T contrast-enhanced MRA. No statistically significant differences were detected between the two MRA groups. | ||
| 650 | 4 | |a 3 T | |
| 650 | 4 | |a gadobutrol | |
| 650 | 4 | |a gadoterate meglumine | |
| 650 | 4 | |a MR angiography | |
| 650 | 4 | |a peripheral arterial occlusive disease | |
| 700 | 1 | |a Haneder, Stefan |d 1981- |e VerfasserIn |0 (DE-588)136678335 |0 (DE-627)585462097 |0 (DE-576)287960943 |4 aut | |
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