Search Results - "Cho, Z H"

Ultra Fast Symmetry and SIMD-Based Projection-Backprojection (SSP) Algorithm for 3-D PET Image Reconstruction by Hong, I.K., Chung, S.T., Kim, H.K., Kim, Y.B., Son, Y.D., Cho, Z.H.

“…Remarkable progress in positron emission tomography (PET) development has occurred in recent years, in hardware, software, and computer implementation of image…”
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Neural substrates, experimental evidences and functional hypothesis of acupuncture mechanisms by Cho, Z. H., Hwang, S. C., Wong, E. K., Son, Y. D., Kang, C. K., Park, T. S., Bai, S. J., Kim, Y. B., Lee, Y. B., Sung, K. K., Lee, B. H., Shepp, L. A., Min, K. T.

“…Objectives –  Athough acupuncture therapy has demonstrated itself to be effective in several clinical areas, the underlying mechanisms of acupuncture in…”
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New Findings of the Correlation between Acupoints and Corresponding Brain Cortices Using Functional MRI by Cho, Z. H., Chung, S. C., Jones, J. P., Park, J. B., Park, H. J., Lee, H. J., Wong, E. K., Min, B. I.

“…A preliminary study of the correlation between acupuncture points (acupoints) for the treatment of eye disorders suggested by ancient Oriental literature and…”
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Assessment of pial branches using 7-tesla MRI in cerebral arterial disease by Song, H-S, Kang, C-K, Kim, J S, Park, C-A, Kim, Y-B, Lee, D H, Kang, D-W, Kwon, S U, Cho, Z-H

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Ependymal Cyst in the Cerebrum of an African Green Monkey ( Chlorocebus aethiops) by Chang, K.-S., Lee, S.-R., Kim, S.-W., Cho, Z.-H., Son, H.-Y., Kim, D., Chang, K.-T.

“…A focal lesion was detected by magnetic resonance imaging in the right caudal occipital lobe of the cerebrum in an African green monkey ( Chlorocebus…”
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Reduction of susceptibility artifact in gradient-echo imaging by Cho, Z H, Ro, Y M

“…A new technique with which susceptibility artifact in gradient-echo imaging can be reduced substantially by use of a tailored RF pulse is described. The…”
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A new silent magnetic resonance imaging using a rotating DC gradient by Cho, Z H, Chung, S T, Chung, J Y, Park, S H, Kim, J S, Moon, C H, Hong, I K

“…A new approach to silent MR imaging using a rotating DC gradient has been explored and experimentally studied. Acoustic or sound noise has been one of the…”
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High-Speed Spiral-Scan Echo Planar NMR Imaging-I by Ahn, C. B., Kim, J. H., Cho, Z. H.

“…An improved echo planar high-speed imaging technique using spiral scan is presented and experimental advantages are discussed. This proposed spiral-scan echo…”
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Effects of the acoustic noise of the gradient systems on fMRI: a study on auditory, motor, and visual cortices by Cho, Z H, Chung, S C, Lim, D W, Wong, E K

“…MR acoustic, or sound, noise due to gradient pulsing has been one of the problems in MRI, both in patient scanning as well as in many areas of psychiatric and…”
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Dopaminergic manipulations and its effects on neurogenesis and motor function in a transgenic mouse model of Huntington's disease by Choi, M.L, Begeti, F, Oh, J.H, Lee, S.Y, O'Keeffe, G.C, Clelland, C.D, Tyers, P, Cho, Z.H, Kim, Y.B, Barker, R.A

“…Abstract Huntington's disease (HD) is an inherited neurodegenerative disorder that is classically defined by a triad of movement and cognitive and psychiatric…”
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Total inhomogeneity correction including chemical shifts and susceptibility by view angle tilting by Cho, Z H, Kim, D J, Kim, Y K

“…A correction technique of the total magnetic field inhomogeneity effects including the localized object induced inhomogeneities such as chemical shift and…”
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Analysis of acoustic noise in MRI by Cho, Z.H., Park, S.H., Kim, J.H., Chung, S.C., Chung, S.T., Chung, J.Y., Moon, C.W., Yi, J.H., Sin, C.H., Wong, E.K.

“…Acoustic or sound noise due to gradient pulsing has been one of the problems in magnetic resonance imaging (MRI), both in patient scanning as well as in many…”
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2821 – Dopamine D2/3 receptor availability and human cognitive impulsivity: a high-resolution PET imaging study with [11 C]raclopride by Kim, J.-H, Son, Y.-D, Kim, H.-K, Lee, S.-Y, Kim, Y.-B, Cho, Z.-H

“…Introduction and objectives : Human impulsivity is a complex multidimensional construct encompassing cognitive, emotional, and behavioral aspects. Previous…”
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A New Phase Correction Method in NMR Imaging Based on Autocorrelation and Histogram Analysis by Ahn, C. B., Cho, Z. H.

“…A new statistical approach to phase correction in NMR imaging is proposed. The proposed scheme consists of first-and zero-order phase corrections each by the…”
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NMR venography using the susceptibility effect produced by deoxyhemoglobin by Cho, Z H, Ro, Y M, Lim, T H

“…A new angiography technique using the susceptibility effect is proposed. Blood containing deoxyhemoglobin is more paramagnetic than surrounding tissue and…”
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Parallelization of the EM algorithm for 3-D PET image reconstruction by Chen, C.M., Lee, S.-Y., Cho, Z.H.

“…The EM algorithm for PET image reconstruction has two major drawbacks that have impeded the routine use of the EM algorithm: the long computation time due to…”
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Reduction of flow artifacts in NMR diffusion imaging using view-angle tilted line-integral projection reconstruction by Jung, K J, Cho, Z H

“…Most of the diffusion imaging techniques employ strong diffusion gradient pulses of long duration in order to achieve appreciable signal attenuation through…”
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Analysis of eddy currents in nuclear magnetic resonance imaging by Ahn, C B, Cho, Z H

“…The eddy currents in nuclear magnetic resonance (NMR) imaging are analyzed from the solutions of Maxwell's equations and their effects are examined over…”
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1.217 HEMIPARKINSONISM-HEMIATROPHY SYNDROME: NEUROIMAGING AND GENETICS by Oh, E.S, Kim, J.-M, Park, S.-S, Kim, Y.K, Kim, S.E, Oh, S.-H, Cho, Z.-H

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Analysis of the eddy-current induced artifacts and the temporal compensation in nuclear magnetic resonance imaging by Ahn, C.B., Cho, Z.H.

“…Reduction of eddy currents by a temporal compensation of the input current waveform to the gradient coil is studied with an analytic solution. The technique is…”
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