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Dokumenttyp:
journal article 
Autor(en):
Keshavan, Anisha; Paul, Friedemann; Beyer, Mona K; Zhu, Alyssa H; Papinutto, Nico; Shinohara, Russell T; Stern, William; Amann, Michael; Bakshi, Rohit; Bischof, Antje; Carriero, Alessandro; Comabella, Manuel; Crane, Jason C; D'Alfonso, Sandra; Demaerel, Philippe; Dubois, Benedicte; Filippi, Massimo; Fleischer, Vinzenz; Fontaine, Bertrand; Gaetano, Laura; Goris, An; Graetz, Christiane; Gröger, Adriane; Groppa, Sergiu; Hafler, David A; Harbo, Hanne F; Hemmer, Bernhard; Jordan, Kesshi; Kappos, Ludw...    »
 
Titel:
Power estimation for non-standardized multisite studies. 
Abstract:
A concern for researchers planning multisite studies is that scanner and T1-weighted sequence-related biases on regional volumes could overshadow true effects, especially for studies with a heterogeneous set of scanners and sequences. Current approaches attempt to harmonize data by standardizing hardware, pulse sequences, and protocols, or by calibrating across sites using phantom-based corrections to ensure the same raw image intensities. We propose to avoid harmonization and phantom-based corr...    »
 
Zeitschriftentitel:
Neuroimage 
Jahr:
2016 
Band / Volume:
134 
Seitenangaben Beitrag:
281-94 
Sprache:
eng 
Print-ISSN:
1053-8119 
TUM Einrichtung:
Neurologische Klinik und Poliklinik; Abteilung für Neuroradiologie