Peer-Reviewed Papers

In reverse chronological order, with some comments.

Compressed Sensing of Spatial Electron Paramagnetic Resonance Imaging. Johnson DH, Ahmad R, He G, Samouilov A, Zweier JL. Magn Reson Med 2013. Pubmed: not assigned yet. Journal's version. This was a warm-up exercise before attempting the full 4-D spectral-spatial EPRI problem.

Uniform Spinning Sampling Gradient Electron Paramagnetic Resonance Imaging. Johnson DH, Ahmad R, Liu Y, Chen Z, Samouilov A, Zweier JL. Magn Reson Med 2013 Mar. Pubmed Abstract. Journal's version. I was pretty happy with this manuscript because it was my first manuscript about EPRI as a first author.

Fast gated EPR imaging of the beating heart: Spatiotemporally resolved 3D imaging of free-radical distribution during the cardiac cycle. Chen Z, Reyes LA, Johnson DH, Velayutham M, Yang C, Samouilov A, Zweier JL. Magn Reson Med 2013;69(2):594-601. Pubmed: 22473660. Journal's version: 10.1002/mrm.24250.

Body composition analysis of obesity and hepatic steatosis in mice by relaxation compensated fat fraction (RCFF) MRI. Johnson DH, Narayan S, Wilson DL, Flask CA. J Magn Reson Imaging 2012;35(4):837-843. Pubmed: 22095745. Journal's version: 10.1002/jmri.23508.

Dual-scan acquisition for accelerated continuous-wave EPR oximetry. Free HTML format! Palmer J, Potter LC, Johnson DH, Zweier JL, Ahmad R. J Magn Reson 2012;222:53-58. Pubmed: 22820009. Journal's version: 10.1016/j.jmr.2012.05.021.

Multisite EPR oximetry from multiple quadrature harmonics. Free HTML format! Ahmad R, Som S, Johnson DH, Zweier JL, Kuppusamy P, Potter LC. J Magn Reson 2012;214(1):135-143. Pubmed: 22154283. Journal's version: 10.1016/j.jmr.2011.10.016.

Fast Lipid And Water Levels by Extraction with Spatial Smoothing (FLAWLESS): Three-dimensional volume fat/water separation at 7 Tesla. Free HTML format! Narayan S, Huang F, Johnson DH, Gargesha M, Flask CA, Zhang GQ, Wilson DL. J Magn Reson Imaging 2011;33(6):1464-1473. Pubmed: 21591017. Journal's version: 10.1002/jmri.22525.

A fast iterated conditional modes algorithm for water-fat decomposition in MRI. Huang F, Narayan S, Wilson D, Johnson DH, Zhang GQ. IEEE Trans Med Imaging 2011;30(8):1480-1492. Pubmed: 21402510. Journal's version: 10.1109/TMI.2011.2125980.

Variable radio frequency proton-electron double-resonance imaging: application to pH mapping of aqueous samples. Free HTML format! Efimova OV, Sun Z, Petryakov S, Kesselring E, Caia GL, Johnson DH, Zweier JL, Khramtsov VV, Samouilov A. J Magn Reson 2011;209(2):227-232. Pubmed: 21320790. Journal's version: 10.1016/j.jmr.2011.01.011.

Improved fat-water reconstruction algorithm with graphics hardware acceleration. Johnson DH, Narayan S, Flask CA, Wilson DL. J Magn Reson Imaging 2010;31(2):457-465. Pubmed: 20099358. Journal's version: 10.1002/jmri.22051.

Reproducible MRI measurement of adipose tissue volumes in genetic and dietary rodent obesity models. Johnson DH, Flask CA, Ernsberger PR, Wong WC, Wilson DL. J Magn Reson Imaging 2008;28(4):915-927. Pubmed Abstract. Pubmed HTML. Journal's version.

Overexpression of the cytosolic form of phosphoenolpyruvate carboxykinase (GTP) in skeletal muscle repatterns energy metabolism in the mouse. Free HTML format! Hakimi P, Yang J, Casadesus G, Massillon D, Tolentino-Silva F, Nye CK, Cabrera ME, Hagen DR, Utter CB, Baghdy Y, Johnson DH, Wilson DL, Kirwan JP, Kalhan SC, Hanson RW. J Biol Chem 2007;282(45):32844-32855. Pubmed: 17716967. Journal's version: 10.1074/jbc.M706127200.

Peer-Reviewed Conference Abstracts and Presentations

Spatial 3D EPR Imaging with Compressed Sensing Reconstruction. [15-min Presentation Slides PDF]. [Poster PDF]. Johnson DH, Ahmad R, Samouilov A, Zweier JL. 41st Annual ISOTT Meeting & EPR 2013 (Dartmouth University); Lebanon, NH.

Uniform Spinning Sampling Gradient Electron Paramagnetic Resonance Imaging. [Poster PDF]. [2-min Presentation Slides PDF]. Johnson DH, Ahmad R, Samouilov A, Zweier JL. 41st Annual ISOTT Meeting & EPR 2013 (Dartmouth University); Lebanon, NH.

Uniform Spinning Sampling Gradient Electron Paramagnetic Resonance Imaging. [Abstract PDF]. [Presentation Slides PDF]. Johnson DH, Chen ZC, Ahmad R, Samouilov A, Zweier JL. Proc. Intl. Soc. Mag. Reson. Med.; 2013 May; Salt Lake City, UT. p 1092.

Temporal Tomographic Imaging By Greedy Feteke and Golden Means Sampling. [Abstract PDF]. [Poster PDF]. Johnson DH, Chen ZC, Ahmad R, Samouilov A, Zweier JL. Proc. Intl. Soc. Mag. Reson. Med.; 2012 May; Melbourne, Australia. p 2070.

Fast Gated EPR Imaging of the Beating Heart: Spatiotemporally-Resolved 3D Imaging of Free Radical Distribution during the Cardiac Cycle. [Abstract PDF]. [Poster PDF]. Chen ZC, Reyes LA, Johnson DH, Velayutham M, Yang C, Samouilov A, Zweier JL. Proc. Intl. Soc. Mag. Reson. Med.; 2012; Melbourne, Australia.

Fast EPR Acquisition with Adaptive Heterogeneous Clocking (AHC). [Abstract PDF]. [Poster PDF]. Chen ZC, Johnson DH, Caia GL, Sun Z, Petryakov S, Samouilov A, Zweier JL. Proc. Intl. Soc. Mag. Reson. Med.; 2011 May; Vancouver, Canada. p 6360.

Fast Fat/Water Decomposition Using GPU Computation and Newton's Method. [Abstract PDF]. [Poster PDF]. Johnson DH, Narayan S, Flask CA, Wilson DL. Proc. Intl. Soc. Mag. Reson. Med.; 2010 May; Stockholm, Sweden. p 3156.

Effects of Smoking on Mouse Adipose Tissue Volumes Measured by IDEAL at 11.7T. [Abstract PDF]. [Oral Slides PDF]. Johnson DH, Lian J, El-Mahdy M, Zweier JL. Proc. Intl. Soc. Mag. Reson. Med.; 2010 May; Stockholm, Sweden. p 55.

In Vivo Imaging of Redox State in Mice Using EPRI/MRI Coimaging. [Abstract PDF]. Caia GL, Sun Z, Petryakov S, Johnson DH, Velayutham M, Samouilov A, Zweier JL. Proc. Intl. Soc. Mag. Reson. Med.; 2010 May; Stockholm, Sweden. p 732.

Accelerated Robust Fat/Water Separation at 7T. [Abstract PDF]. Sreenath Narayan, Fangping Huang, David Johnson, Christopher Flask, Guo-Qiang Zhang, David Wilson. Proc. Intl. Soc. Mag. Reson. Med.; 2010 May; Stockholm, Sweden. p 2920.

Case-PDM Optimized Compressed Sensing Sampling for Fat-Water Separation. [Abstract PDF]. Sreenath Narayan, Jun Miao, Fangping Huang, David Johnson, Guo-Qiang Zhang, David Wilson. Proc. Intl. Soc. Mag. Reson. Med.; 2010 May; Stockholm, Sweden. p 3157.

Comparison of Compressed Sensing and Keyhole Methods for Fat-Water Separation. [Abstract PDF]. Sreenath Narayan, Jun Miao, Fangping Huang, David Johnson, Guo-Qiang Zhang, David Wilson. Proc. Intl. Soc. Mag. Reson. Med.; 2010 May; Stockholm, Sweden. p 3158.

IDEAL at 7T in Mice Using Asymmetric Spin Echo and Gradient Echo Acquisitions. [Abstract PDF]. Johnson DH, Narayan S, Wilson DL, Flask CA. Proc. Intl. Soc. Mag. Reson. Med.; 2009 Apr 22; Honolulu, Hawaii. p 2682.

Quantitative MRI Markers for Cystic Kidney Disease Progression in an ARPKD Rat Model. [Abstract PDF]. Flask CA, Johnson DH, Gulani V, Osman R, Hoxha N, Dell KM. Proc. Intl. Soc. Mag. Reson. Med.; 2009 Apr 22; Honolulu, Hawaii. p 2044.

Statistical modeling and MAP estimation for body fat quantification with MRI ratio imaging. Wong WC, Johnson DH, Wilson DL. Proceedings of the SPIE 6914; 2008 Mar 11. p 1S-11S. Journal's version.

Improved Accuracy and Smoothed Lipid Content by Maximum a Posteriori Estimation in CHESS Ratio Images. [Abstract PDF]. Wong WC, Johnson DH, Flask CA, Ernsberger PR, Wilson DL. Proc. Intl. Soc. Mag. Reson. Med.; 2008; Toronto, Canada. p 487.

Characterization of a Rodent Model of Metabolic Syndrome by MRS and MRI. Johnson DH, Flask CA, Wan DP, Ernsberger PR, Wilson DL. [Abstract PDF]. Proc. Intl. Soc. Mag. Reson. Med.; 2007; Berlin, Germany. p 2710.

Phenotyping Rodent Metabolic Variants with MRI Percent Lipid Imaging. Johnson DH, Flask CA, Ernsberger PR, Hanson RW, Nadeau JH, Hakimi P, Wilson DL. Proc. Soc. Mol. Imag.; 2006 Aug 30; Waikoloa, Hawaii.

Quantification of adipose tissue in a rodent model of obesity. Johnson DH, Flask CA, Wan DP, Ernsberger PR, Wilson DL. In: Manduca A, Amini AA, editors. Proceedings of the SPIE 6143, Medical Imaging 2006: Physiology, Function, and Structure from Medical Images, 614302; 2006 Mar 13. p 9-17. San Diego, CA, USA. Journal's version. [12-min Oral Presentation Slides PDF]. This was the first big conference that I attended and did an oral presentation.

Magnetic Resonance Imaging of Visceral and Subcutaneous Fat Distribution in Genetic Versus Dietary Obesity. Wan DP, Johnson DH, Johnson J, Koletsky R, Flask CA, Ernsberger PR. Obesity Research; 2005 Oct 15; Vancouver, Canada. p A172.

Ph.D. Thesis

Johnson DH. Phenotyping Rodent Models of Obesity Using Magnetic Resonance Imaging. Cleveland, Ohio: Case Western Reserve University; 2010. 113 p. [1 Hour Oral Presentation Thesis Defense].

NIH Grant Proposals

There's no point in posting unfunded or unscored grants, and I can't post the text of grants that I wrote for other researchers. But I can post my own successful proposals and link to ones that I wrote for others. Some people consider grant text to be top secret, but there's so much overlap between papers and grants that I don't see why it must be so. After all, any work that you do with NIH funds should already be considered public property and can be retrieved via FOIA request.

PI: Zweier JL. R21 (Assigned to study section; Awaiting score). Compressed Sensing For Accelerated Cardiac EPR Imaging.

PI: Zweier JL. 1 R01 EB016096-01A1 (2013-2017; In progress). IN VIVO CO-IMAGING WITH EPR AND HIGH FIELD MRI.

PI: Johnson DH. 5 F32 EB012932-02 (2011-2013; Completed). OPTIMIZATION OF EPR ACQUISITIONS AND POST-PROCESSING.