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CCTA) est soumis à des artéfacts de movement important en population pédiatrique, ce qui rend l'examen non interpretable. L'essai COROPEDIA a pour but d'évaluer les algorithmes de correction d'artéfacts de mouvement (MCA) de première (SSF1) et deuxième generation (SSF2) chez des enfants bénéficiant d ,
, Les images ont été reconstruites par SSF1 et SFF2 (SnapShot Freeze, GE Healthcare), et compares aux images issues des reconstructions monophasiques et multiphasiques. La qualité des images a été évaluée par deux radiologues en évaluant les structures suivantes par une échelle semi quantitative à 4 catégories: les segments coronaires, les ostia droit et gauche, l'aorte ascendante, le tronc de l'artère pulmonaire, la valve aortique et les cavités cardiaques. Results: Les reconstructions par MCA ont été réalisées chez 47 patients, Matériels et méthodes: Cet essai prospectif a inclus 50 enfants qui ont bénéficié d'une acquisition par coroscanner à large détecteur
, Comparativement aux reconstructions multiphasiques les reconstructions SSF2 ont une proportion équivalente de structures de qualité diagnostique (99.6% vs. 99.3%, P=0.5), avec une proportion lus grande de structres de qualité optimale, Les reconstructions SSF2 ont de meilleurs résultats que les reconstructions SSF1 et monophasiques en proportion d'images de qualité diagnostique (respectivement 99.3% vs. 93.5% et 91.5%, P<0.05) et d'images de qualité optimale (respectivement 89.5% vs. 66.1% et 55.6%, P<0.05)
, Conclusion: Snapshot Freeze 2 améliore la qualité d'image en réduisant les artéfacts de
, Mots clés: coroscanner, cardiopathie congénitale, pédiatrie, algorithme, reconstructions, monophasique, multiphasique, artifact