For the ISMRM 2016 we build a minimum deformation average (MDA) from a population of subjects based upon high resolution 7T MR imaging.
View online and download the model in MINC or NiFTI format here:
- View model online
- Download mnc (1074 MB)
- Download nii (1465 MB)
- code: https://github.com/CAISR/volgenmodel-nipype
Citing this model: Bollmann, Steffen, Andrew Janke, Lars Marstaller, David Reutens, Kieran O’Brien, and Markus Barth. “MP2RAGE T1-weighted average 7T model” January 1, 2017. doi:10.14264/uql.2017.266
Acquisition details
MP2RAGE: 48 (16 female, 31.1±8.6yr) individuals were imaged using a prototype MP2RAGE sequence with a range of resolutions: 0.5mm (18 indiv.), 0.75mm (21), 1.0mm (8) and 1.3mm (1). TR= 4330ms, TI1/TI2=750/2370ms, TE=2.8ms, flip angle=5,6, and GRAPPA = 3. The image matrix was typically 256x300x320 or 420x378x288 but was dependent upon coverage and FOV. The MP2RAGE denoised images [6, 7] were intensity-normalised using a histogram clamping technique.
References
6. O’Brien, Kieran R., et al. “Robust T1-Weighted Structural Brain Imaging and Morphometry at 7T Using MP2RAGE.” (2014): e99676.
7. O’Brien, Kieran R., et al. “Dielectric pads and low-B1+ adiabatic pulses: Complementary techniques to optimize structural T1w whole-brain MP2RAGE scans at 7 tesla.” JMRI 40.4 (2014): 804-812.
References describing this model:
Janke AL, O’Brien K, Bollmann S, Kober T, Marstaller L, Barth M. A 7T Human Brain Microstructure Atlas by Minimum Deformation Averaging at 300um. In 24th Annual ISMRM Scientific Meeting and Exhibition, Singapore. http://indexsmart.mirasmart.com/ISMRM2016/PDFfiles/1165.html
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