Joseph A. Helpern
Joseph A. Helpern
Professor, Department of Neuroscience, Medical University of South Carolina
Verified email at
Cited by
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Diffusional kurtosis imaging: the quantification of non‐gaussian water diffusion by means of magnetic resonance imaging
JH Jensen, JA Helpern, A Ramani, H Lu, K Kaczynski
Magnetic Resonance in Medicine: An Official Journal of the International …, 2005
MRI quantification of non‐Gaussian water diffusion by kurtosis analysis
JH Jensen, JA Helpern
NMR in Biomedicine 23 (7), 698-710, 2010
Three‐dimensional characterization of non‐gaussian water diffusion in humans using diffusion kurtosis imaging
H Lu, JH Jensen, A Ramani, JA Helpern
NMR in Biomedicine: An International Journal Devoted to the Development and …, 2006
White matter characterization with diffusional kurtosis imaging
E Fieremans, JH Jensen, JA Helpern
Neuroimage 58 (1), 177-188, 2011
Correction of motional artifacts in diffusion-weighted MR images using navigator echoes
RJ Ordidge, JA Helpern, ZX Qing, RA Knight, V Nagesh
Magnetic resonance imaging 12 (3), 455-460, 1994
Assessment of relative brain iron concentrations using T2‐weighted and T2*‐weighted MRI at 3 Tesla
RJ Ordidge, JM Gorell, JC Deniau, RA Knight, JA Helpern
Magnetic resonance in medicine 32 (3), 335-341, 1994
Increased iron‐related MRI contrast in the substantia nigra in Parkinson's disease
JM Gorell, RJ Ordidge, GG Brown, JC Deniau, NM Buderer, JA Helpern
Neurology 45 (6), 1138-1143, 1995
North America Symptomatic Carotid Endarterectomy Trial: methods, patient characteristics and progress
North America Symptomatic Carotid Endarterectomy Trial Steering Committee
Stroke 22, 711-720, 1991
Low brain magnesium in migraine
NM Ramadan, H Halvorson, A Vande‐Linde, SR Levine, JA Helpern, ...
Headache: The Journal of Head and Face Pain 29 (9), 590-593, 1989
Estimation of tensors and tensor‐derived measures in diffusional kurtosis imaging
A Tabesh, JH Jensen, BA Ardekani, JA Helpern
Magnetic resonance in medicine 65 (3), 823-836, 2011
Magnetic resonance imaging assessment of evolving focal cerebral ischemia. Comparison with histopathology in rats.
RA Knight, MO Dereski, JA Helpern, RJ Ordidge, M Chopp
Stroke 25 (6), 1252-1261, 1994
The metabolic effects of mild hypothermia on global cerebral ischemia and recirculation in the cat: comparison to normothermia and hyperthermia
M Chopp, R Knight, CD Tidwell, JA Helpern, E Brown, KMA Welch
Journal of Cerebral Blood Flow & Metabolism 9 (2), 141-148, 1989
Neuropsychiatric applications of DTI–a review
KO Lim, JA Helpern
NMR in Biomedicine: An International Journal Devoted to the Development and …, 2002
Does diffusion kurtosis imaging lead to better neural tissue characterization? A rodent brain maturation study
MM Cheung, ES Hui, KC Chan, JA Helpern, L Qi, EX Wu
Neuroimage 45 (2), 386-392, 2009
Temporal evolution of ischemic damage in rat brain measured by proton nuclear magnetic resonance imaging.
RA Knight, RJ Ordidge, JA Helpern, M Chopp, LC Rodolosi, D Peck
Stroke 22 (6), 802-808, 1991
Age‐related non‐Gaussian diffusion patterns in the prefrontal brain
MF Falangola, JH Jensen, JS Babb, C Hu, FX Castellanos, A Di Martino, ...
Journal of Magnetic Resonance Imaging: An Official Journal of the …, 2008
Preliminary observations on brain energy metabolism in migraine studied by in vivo phosphorus 31 NMR spectroscopy
KMA Welch, SR Levine, G D'andrea, LR Schultz, JA Helpern
Neurology 39 (4), 538-538, 1989
Revealing mesoscopic structural universality with diffusion
DS Novikov, JH Jensen, JA Helpern, E Fieremans
Proceedings of the National Academy of Sciences 111 (14), 5088-5093, 2014
Monte Carlo study of a two‐compartment exchange model of diffusion
E Fieremans, DS Novikov, JH Jensen, JA Helpern
NMR in Biomedicine 23 (7), 711-724, 2010
In vivo 31P NMR profiles of Alzheimer's disease and multiple subcortical infarct dementia
GG Brown, SR Levine, JM Gorell, JW Pettegrew, JW Gdowski, JA Bueri, ...
Neurology 39 (11), 1423-1423, 1989
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