PMID- 32185401 OWN - NLM STAT- MEDLINE DCOM- 20211101 LR - 20211101 IS - 1869-1447 (Electronic) IS - 1869-1439 (Linking) VI - 31 IP - 2 DP - 2021 Jun TI - Absence of T1 Hyperintensity in the Brain of High-risk Patients After Multiple Administrations of High-dose Gadobutrol for Cardiac Magnetic Resonance. PG - 347-355 LID - 10.1007/s00062-020-00897-z [doi] AB - PURPOSE: A prospective study was conducted to evaluate signal changes in the dentate nucleus, globus pallidus, pons, and thalamus (normalized to the deep cerebellum white matter) in T1-weighted magnetic resonance (MR) images after serial injections of gadobutrol in patients with thalassemia without neurological lesions. METHODS: In this study three groups were scanned at both 1.5 T and 3 T: 15 thalassemia patients transfused and chelated with >/=4 gadobutrol administrations at a high dose (0.2 mmol/kg per scan) for late gadolinium enhancement (LGE) cardiovascular MR, 8 thalassemia patients and 13 healthy subjects who had never received gadolinium-based contrast agents (GBCA). RESULTS: Signal intensity (SI) ratios at 1.5 T in all regions were comparable among the three groups and were not correlated with the number of gadobutrol administrations. In healthy subjects SI ratios were significantly different among the 4 regions, being higher in the pallidus. The SI ratios at 1.5 T were significantly higher and not correlated with SI ratios at 3 T or with iron overload in the same regions assessed by the T2* technique. CONCLUSION: This article describes the lack of increased SI in T1-weighted MR images after repeated administration of gadobutrol for cardiovascular MR studies in a high-risk population (high dose per scan, iron overload that can facilitate the transmetalation of gadolinium) scanned at 3 T and 1.5 T. FAU - Meloni, Antonella AU - Meloni A AD - MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, 1 Moruzzi Street, 56124, Pisa, Italy. FAU - Montanaro, Domenico AU - Montanaro D AD - MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, 1 Moruzzi Street, 56124, Pisa, Italy. FAU - De Marchi, Daniele AU - De Marchi D AD - MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, 1 Moruzzi Street, 56124, Pisa, Italy. FAU - Resta, Mariachiara AU - Resta M AD - Istituto di Radiologia, Policlinico Universita di Bari, 11 Giulio Cesare Square, 70124, Bari, Italy. FAU - Keilberg, Petra AU - Keilberg P AD - MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, 1 Moruzzi Street, 56124, Pisa, Italy. FAU - Pistoia, Laura AU - Pistoia L AD - MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, 1 Moruzzi Street, 56124, Pisa, Italy. FAU - Positano, Vincenzo AU - Positano V AD - MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, 1 Moruzzi Street, 56124, Pisa, Italy. FAU - Spasiano, Anna AU - Spasiano A AD - Unita Operativa Semplice Dipartimentale Malattie Rare del Globulo Rosso, Azienda Ospedaliera di Rilievo Nazionale "A. Cardarelli", 9 Cardarelli Street, 80131, Napoli, Italy. FAU - Casini, Tommaso AU - Casini T AD - Centro Talassemie ed Emoglobinopatie, Ospedale "Meyer", 13 Luca Giordano Street, 50132, Firenze, Italy. FAU - De Bari, Caterina Cinzia AU - De Bari CC AD - Unita Operativa Immunoematologia e Medicina Trasfusionale, Ospedale "San Donato", 20 Pietro Nenni Street, 52100, Arezzo, Italy. FAU - De Cori, Sara AU - De Cori S AD - MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, 1 Moruzzi Street, 56124, Pisa, Italy. FAU - Pepe, Alessia AU - Pepe A AD - MRI Unit, Fondazione G. Monasterio CNR-Regione Toscana, Area della Ricerca S. Cataldo, 1 Moruzzi Street, 56124, Pisa, Italy. alessia.pepe@ftgm.it. LA - eng PT - Journal Article DEP - 20200317 PL - Germany TA - Clin Neuroradiol JT - Clinical neuroradiology JID - 101526693 RN - 0 (Contrast Media) RN - 0 (Organometallic Compounds) RN - 1BJ477IO2L (gadobutrol) RN - AU0V1LM3JT (Gadolinium) RN - K2I13DR72L (Gadolinium DTPA) SB - IM MH - Cerebellar Nuclei MH - *Contrast Media MH - Gadolinium MH - Gadolinium DTPA MH - Humans MH - Magnetic Resonance Spectroscopy MH - Organometallic Compounds MH - Prospective Studies MH - Retrospective Studies OTO - NOTNLM OT - Brain OT - Cardiac magnetic resonance imaging OT - Gadolinium deposition OT - Signal intensity OT - Thalassemia EDAT- 2020/03/19 06:00 MHDA- 2021/11/03 06:00 CRDT- 2020/03/19 06:00 PHST- 2019/10/01 00:00 [received] PHST- 2020/02/28 00:00 [accepted] PHST- 2020/03/19 06:00 [pubmed] PHST- 2021/11/03 06:00 [medline] PHST- 2020/03/19 06:00 [entrez] AID - 10.1007/s00062-020-00897-z [pii] AID - 10.1007/s00062-020-00897-z [doi] PST - ppublish SO - Clin Neuroradiol. 2021 Jun;31(2):347-355. doi: 10.1007/s00062-020-00897-z. Epub 2020 Mar 17.