Frontal Cortex fMRI at 7T: Escaping Flat Minimum Traps in Higher-Order B0 
Shimming Algorithms

Fillmer, A; Scheidegger, M; Boesiger, P; Henning, A

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Frontal Cortex fMRI at 7T: Escaping Flat Minimum Traps in Higher-Order B0 Shimming Algorithms

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http://www.ismrm.org/12/tp_14.htm
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Fillmer, A., Scheidegger, M., Boesiger, P., & Henning, A. (2012). Frontal Cortex fMRI at 7T: Escaping Flat Minimum Traps in Higher-Order B0 Shimming Algorithms. Poster presented at 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012), Melbourne, Australia.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-B7A4-D

Abstract

To make use of the full capacity of fMRI applications in ultra-high field strengths, an excellent B0 shimming is inevitable. Usually these applications suffer from major distortions and signal drop-outs in the frontal cortex area. This work presents a modified approach of B0 shimming, which enables the restoration of signal in the frontal cortex and therefore renders fMRI applications in the frontal cortex possible.