G
Gunnar Krueger
Researcher at Siemens
Publications - 102
Citations - 8775
Gunnar Krueger is an academic researcher from Siemens. The author has contributed to research in topics: Magnetic resonance imaging & Signal. The author has an hindex of 31, co-authored 102 publications receiving 7432 citations. Previous affiliations of Gunnar Krueger include École Polytechnique Fédérale de Lausanne & University Hospital of Lausanne.
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Journal ArticleDOI
The Alzheimer's Disease Neuroimaging Initiative (ADNI): MRI methods.
Clifford R. Jack,Matt A. Bernstein,Nick C. Fox,Paul M. Thompson,Gene E. Alexander,Danielle J Harvey,Bret J. Borowski,Paula J. Britson,Jennifer L. Whitwell,Chadwick P. Ward,Anders M. Dale,Joel P. Felmlee,Jeffrey L. Gunter,Derek L. G. Hill,Ronald J. Killiany,Norbert Schuff,Sabrina Fox-Bosetti,Chen Lin,Colin Studholme,Charles DeCarli,Gunnar Krueger,Heidi A. Ward,Gregory J. Metzger,Katherine T. Scott,Richard Philip Mallozzi,Daniel J. Blezek,Joshua Levy,Josef Phillip Debbins,Adam S. Fleisher,Marilyn S. Albert,Robert C. Green,George Bartzokis,Gary H. Glover,John P. Mugler,Michael W. Weiner +34 more
TL;DR: The approach taken in ADNI to standardization across sites and platforms of the MRI protocol, postacquisition corrections, and phantom‐based monitoring of all scanners could be used as a model for other multisite trials.
Journal ArticleDOI
MP2RAGE, a self bias-field corrected sequence for improved segmentation and T1-mapping at high field
José P. Marques,Tobias Kober,Tobias Kober,Gunnar Krueger,Gunnar Krueger,Wietske van der Zwaag,Wietske van der Zwaag,Pierre-Francois Van de Moortele,Rolf Gruetter,Rolf Gruetter,Rolf Gruetter +10 more
TL;DR: The MPRAGE sequence was modified to generate two different images at different inversion times, MP2RAGE, to create T(1)-weighted images where the result image was free of proton density contrast, T(2) contrast, reception bias field, and, to first order, transmit field inhomogeneity.
Journal ArticleDOI
Comparison of physiological noise at 1.5 T, 3 T and 7 T and optimization of fMRI acquisition parameters.
Christina Triantafyllou,Richard D. Hoge,Gunnar Krueger,Christopher J. Wiggins,Andreas Potthast,Graham Wiggins,Lawrence L. Wald +6 more
TL;DR: By reducing the signal strength using higher image resolution, the ratio of physiologic to image noise could be reduced to a regime where increased sensitivity afforded by higher field strength still translated to improved SNR in the fMRI time-series.
Journal ArticleDOI
Update on the Magnetic Resonance Imaging core of the Alzheimer's Disease Neuroimaging Initiative
Clifford R. Jack,Matt A. Bernstein,Bret J. Borowski,Jeff Gunter,Nick C. Fox,Paul M. Thompson,Norbert Schuff,Gunnar Krueger,Ronald J. Killiany,Charles DeCarli,Anders M. Dale,Owen W. Carmichael,Duygu Tosun,Michael W. Weiner +13 more
TL;DR: The approach to the present (“ADNI‐GO”) and future (‘ADNI-2,” if funded) MRI protocol will be to maintain MRI methodological consistency in the previously enrolled “AD NI‐1” subjects who are followed up longitudinally in AD NI‐GO and ADNI‐2.
Journal ArticleDOI
MR spectroscopy of the human brain with enhanced signal intensity at ultrashort echo times on a clinical platform at 3T and 7T
Ralf Mekle,Ralf Mekle,Vladimir Mlynarik,Giulio Gambarota,Martin Hergt,Gunnar Krueger,Rolf Gruetter,Rolf Gruetter,Rolf Gruetter +8 more
TL;DR: The spin‐echo full‐intensity acquired localized spectroscopy technique was adapted and optimized for use on a clinical platform at 3T and 7T by combining interleaved water suppression and outer volume saturation, optimized sequence timing, and improved shimming using FASTMAP.