Regional white matter volume differences in nondemented aging and Alzheimer's disease. - David H. Salat; Douglas N. Greve; Jennifer L. Pacheco; Brian T. Quinn; Karl G. Helmer; Randy L. Buckner; Bruce Fischl (NeuroImage, 2009)

Enabling collaborative research using the Biomedical Informatics Research Network (BIRN). - Karl G. Helmer; José Luis Ambite; Joseph Ames; Rachana Ananthakrishnan; Gully Burns; Ann L. Chervenak; Ian T. Foster; Lee Liming; David B. Keator; Fabio Macciardi; Ravi K. Madduri; John-Paul Navarro; et al. (J. Am. Medical Informatics Assoc., 2011)

MultiCenter Reliability of Diffusion Tensor Imaging. - Vincent Magnotta; Joy T. Matsui; Dawei Liu; Hans J. Johnson; Jeffrey D. Long; Bradley D. Bolster Jr.; Bryon A. Mueller; Kelvin O. Lim; Susumu Mori; Karl G. Helmer; Jessica A. Turner; Sarah A. J. Reading; et al. (Brain Connect., 2012)

Towards structured sharing of raw and derived neuroimaging data across existing resources - David B. Keator; Karl G. Helmer; Jason Steffener; Jessica A. Turner; Theo G. M. van Erp; Syam Gadde; Naveen Ashish; Gully A. P. C. Burns; B. Nolan Nichols; Satrajit S. Ghosh (CoRR, 2012)

Data sharing in neuroimaging research. - Jean-Baptiste Poline; Janis L. Breeze; Satrajit S. Ghosh; Krzysztof J. Gorgolewski; Yaroslav O. Halchenko; Michael Hanke; Christian Haselgrove; Karl G. Helmer; David B. Keator; Daniel S. Marcus; Russell A. Poldrack; Yannick Schwartz; et al. (Frontiers Neuroinformatics, 2012)

T2* mapping and B0 orientation-dependence at 7 T reveal cyto- and myeloarchitecture organization of the human cortex. - Julien Cohen-Adad; Jonathan R. Polimeni; Karl G. Helmer; Thomas Benner; Jennifer A. McNab; Lawrence L. Wald; Bruce R. Rosen; Caterina Mainero (NeuroImage, 2012)

Towards structured sharing of raw and derived neuroimaging data across existing resources. - David B. Keator; Karl G. Helmer; Jason Steffener; Jessica A. Turner; Theo G. M. van Erp; Syam Gadde; Naveen Ashish; Gully A. P. C. Burns; B. Nolan Nichols (NeuroImage, 2013)

TransformDB: A Data Management System for Multimodal Imaging Data. - Karl G. Helmer; Qi Wang; Graham Warner (AMIA, 2016)

Multi-site study of diffusion metric variability: characterizing the effects of site, vendor, field strength, and echo time using the histogram distance. - Karl G. Helmer; M.-C. Chou; R. I. Preciado; Barjor Gimi; N. K. Rollins; A. Song; Jessica A. Turner; Susumu Mori (Biomedical Applications in Molecular, Structural, and Functional Imaging, 2016)

Multi-site study of diffusion metric variability: effects of site, vendor, field strength, and echo time on regions-of-interest and histogram-bin analyses. - Karl G. Helmer; M.-C. Chou; R. I. Preciado; Barjor Gimi; N. K. Rollins; A. Song; Jessica A. Turner; Susumu Mori (Biomedical Applications in Molecular, Structural, and Functional Imaging, 2016)

Multi-vendor and multisite evaluation of cerebrovascular reactivity mapping using hypercapnia challenge. - Peiying Liu; Dengrong Jiang; Marilyn Albert; Christopher E. Bauer; Arvind Caprihan; Brian T. Gold; Steven M. Greenberg; Karl G. Helmer; Kay Jann; Gregory Jicha; Pavel Rodriguez; Claudia L. Satizabal; et al. (NeuroImage, 2021)

NIDM-Experiment: An Ontology for Annotating Neuroscientific Data. - Karl G. Helmer; Derek Chaplin; Nazek Queder; Satrajit S. Ghosh; Camille Maumet; Jean-Baptiste Poline; Theo G. M. van Erp; David B. Keator (ICBO, 2022)

The Neuroimaging Data Model Linear Regression Tool (nidm_linreg): PyNIDM Project. - Ashmita Kumar; Albert Crowley; Nazek Queder; Jean-Baptiste Poline; Satrajit S. Ghosh; David N. Kennedy; Jeffrey S. Grethe; Karl G. Helmer; David B. Keator (F1000Research, 2022)

NIDM-Terms: community-based terminology management for improved neuroimaging dataset descriptions and query. - Nazek Queder; Vivian B. Tien; Sanu Ann Abraham; Sebastian Georg Wenzel Urchs; Karl G. Helmer; Derek Chaplin; Theo G. M. van Erp; David N. Kennedy; Jean-Baptiste Poline; Jeffrey S. Grethe; Satrajit S. Ghosh; David B. Keator (Frontiers Neuroinformatics, 2023)