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J A Helpern

Showing results (31-40 of 71) with videos related to

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Stroke|June 1, 1994
Magnetic resonance imaging assessment of evolving focal cerebral ischemia. Comparison with histopathology in ratsR A Knight, M O Dereski, J A Helpern, et al.
Magnetic Resonance Imaging|January 1, 1994
Correction of motional artifacts in diffusion-weighted MR images using navigator echoesR J Ordidge, J A Helpern, Z X Qing, et al.
NMR in Biomedicine|February 1, 1995
Preliminary observations of transverse relaxation rates obtained at 3 tesla from the substantia nigra of adult normal human brainJ A Helpern, R J Ordidge, J M Gorell, et al.
Archives of Neurology|April 1, 1993
Altered brain energy metabolism in demented patients with multiple subcortical ischemic lesions. Working hypothesesG G Brown, J H Garcia, J W Gdowski, et al.
Stroke|April 1, 1991
Nuclear magnetic resonance spectroscopy study of human brain after cardiac resuscitationG B Martin, N A Paradis, J A Helpern, et al.
Magnetic Resonance in Medicine|September 1, 1994
Assessment of relative brain iron concentrations using T2-weighted and T2*-weighted MRI at 3 TeslaR J Ordidge, J M Gorell, J C Deniau, et al.
Magnetic Resonance Imaging|January 1, 1991
Investigation of cerebral ischemia using magnetization transfer contrast (MTC) MR imagingR J Ordidge, J A Helpern, R A Knight, et al.
Stroke|June 1, 1991
Temporal evolution of ischemic damage in rat brain measured by proton nuclear magnetic resonance imagingR A Knight, R J Ordidge, J A Helpern, et al.
Stroke|March 1, 1990
Chronic cerebral intracellular alkalosis following forebrain ischemic insult in ratsM Chopp, A M Vande Linde, H Chen, et al.
Medical Physics|March 1, 1985
In vivo 31-P NMR of photoactivated hematoporphyrin derivative in cat brainM Chopp, J A Helpern, S Frinak, et al.
Pageof 8

Showing results (31-40 of 71) with videos related to

Sort By:
Pageof 8
Stroke|June 1, 1994
Magnetic resonance imaging assessment of evolving focal cerebral ischemia. Comparison with histopathology in ratsR A Knight, M O Dereski, J A Helpern, et al.
Magnetic Resonance Imaging|January 1, 1994
Correction of motional artifacts in diffusion-weighted MR images using navigator echoesR J Ordidge, J A Helpern, Z X Qing, et al.
NMR in Biomedicine|February 1, 1995
Preliminary observations of transverse relaxation rates obtained at 3 tesla from the substantia nigra of adult normal human brainJ A Helpern, R J Ordidge, J M Gorell, et al.
Archives of Neurology|April 1, 1993
Altered brain energy metabolism in demented patients with multiple subcortical ischemic lesions. Working hypothesesG G Brown, J H Garcia, J W Gdowski, et al.
Stroke|April 1, 1991
Nuclear magnetic resonance spectroscopy study of human brain after cardiac resuscitationG B Martin, N A Paradis, J A Helpern, et al.
Magnetic Resonance in Medicine|September 1, 1994
Assessment of relative brain iron concentrations using T2-weighted and T2*-weighted MRI at 3 TeslaR J Ordidge, J M Gorell, J C Deniau, et al.
Magnetic Resonance Imaging|January 1, 1991
Investigation of cerebral ischemia using magnetization transfer contrast (MTC) MR imagingR J Ordidge, J A Helpern, R A Knight, et al.
Stroke|June 1, 1991
Temporal evolution of ischemic damage in rat brain measured by proton nuclear magnetic resonance imagingR A Knight, R J Ordidge, J A Helpern, et al.
Stroke|March 1, 1990
Chronic cerebral intracellular alkalosis following forebrain ischemic insult in ratsM Chopp, A M Vande Linde, H Chen, et al.
Medical Physics|March 1, 1985
In vivo 31-P NMR of photoactivated hematoporphyrin derivative in cat brainM Chopp, J A Helpern, S Frinak, et al.
Pageof 8