Rxivist combines preprints from bioRxiv with data from Twitter to help you find the papers being discussed in your field. Currently indexing 62,183 bioRxiv papers from 276,080 authors.
7 Tesla MRI of the ex vivo human brain at 100 micron resolution
Brian L Edlow,
Jonathan R. Polimeni,
M. Dylan Tisdall,
Jason P. Stockmann,
Bram R Diamond,
Lee S. Tirrell,
Rebecca D Folkerth,
Lawrence L Wald,
Andre van der Kouwe
Posted 31 May 2019
bioRxiv DOI: 10.1101/649822
Posted 31 May 2019
We present an ultra-high resolution magnetic resonance imaging (MRI) dataset of an ex vivo human brain specimen. The brain specimen was donated by a 58-year-old woman who had no history of neurological disease and died of non-neurological causes. After fixation in 10% formalin, the specimen was imaged on a 7 Tesla MRI scanner at 100 micron isotropic resolution using a custom-built 31-channel receive array coil. Single-echo multi-flip Fast Low-Angle SHot (FLASH) data were acquired over 100 hours of scan time (25 hours per flip angle), allowing derivation of a T1 parameter map and synthesized FLASH volumes. This dataset provides an unprecedented view of the three-dimensional neuroanatomy of the human brain. To optimize the utility of this resource, we warped the dataset into standard stereotactic space. We now distribute the dataset in both native space and stereotactic space to the academic community via multiple platforms. We envision that this dataset will have a broad range of investigational, educational, and clinical applications that will advance understanding of human brain anatomy in health and disease.
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