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Abstract #3510

Reliability, Power, and Calibration for Multisite MRI Volumetric Studies

Anisha Keshavan 1 , Friedmann Paul 2 , Mona Beyer 3 , Rohit Bakshi 4 , Phillip De Jager 4 , Massimo Filippi 5 , David Hafler 6 , Hanne Harbo 3 , Stephen Hauser 1 , Ludwig Kappos 7 , Filippo Martinelli 5 , Daniel Pelletier 6 , Maria Rocca 5 , Till Sprenger 7 , William Stern 1 , Bernard Uitdehaag 8 , Mike Wattjes 8 , Howard Weiner 4 , Jens Wrfel 2 , Alyssa Zhu 1 , Jorge Oksenberg 1 , and Roland Henry 1

1 Neurology, UCSF, San Francisco, CA, United States, 2 Charit Universittsmedizin, Germany, 3 Oslo University Hospital, Norway, 4 Brigham and Women's Hospital, MA, United States, 5 Scientific Institute Ospedale San Raffaele, Italy, 6 Yale University, CT, United States, 7 University Hospital, Basel, Switzerland, 8 Academic Hospital Vrije Universiteit, Netherlands

Acquiring data using non-standardized protocols could provide a cost and implementation efficient strategy for multisite MRI volumetric studies. We demonstrate feasibility and power considerations for such studies using a unique cohort of travelling controls across 8 institutions in the USA and Europe.

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