- Ultrafast Magnetic Resonance Imaging: Echo Planar Imaging and Spiral Scan Imaging
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Ahn CB
- KMID: 2099790
- J Korean Soc Magn Reson Med.
- 1999 Mar;3(1):6-12.
No abstract available. -
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- Multi-slice Multi-echo Pulsed-gradient Spin-echo (MePGSE) Sequence for Diffusion Tensor Imaging MRI: A Preliminary Result
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Jahng GH, Pickup S
- KMID: 1512440
- Korean J Med Phys.
- 2007 Jun;18(2):65-72.
An echo planar imaging (EPI)-based spin-echo sequence is often used to obtain diffusion tensor imaging (DTI) data on most of the clinical MRI systems. However, this sequence is confounded with... -
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- Analysis of Apparent Diffusion Coefficients of the Brain in Healthy Controls: A Comparison Study between Single-Shot Echo-Planar Imaging and Read-out-Segmented Echo-Planar Imaging
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Choi Y, Hwang EJ, Nam Y, Choi HS, Jang J, Jung SL, Ahn KJ, Kim BS
- KMID: 2467024
- Korean J Radiol.
- 2019 Jul;20(7):1138-1145.
- doi: 10.3348/kjr.2018.0899
OBJECTIVE: To compare apparent diffusion coefficients (ADCs) of brain segments by using two diffusion-weighted imaging acquisition modes, single-shot echo-planar imaging (ss-EPI) and read-out-segmented echo-planar imaging (rs-EPI), and to assess their... -
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- Review of Recent Advancement of Ultra High Field Magnetic Resonance Imaging: from Anatomy to Tractography
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Cho ZH
- KMID: 2354794
- Investig Magn Reson Imaging.
- 2016 Sep;20(3):141-151.
- doi: 10.13104/imri.2016.20.3.141
PURPOSE: Advances of magnetic resonance imaging (MRI), especially that of the Ultra-High Field (UHF) MRI will be reviewed. MATERIALS AND METHODS: Diffusion MRI data was obtained from a healthy adult young... -
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- T2-weighted Half Fourier Echo Planar Imaging
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Kim CY, Kim HJ, Ahn CB
- KMID: 2099807
- J Korean Soc Magn Reson Med.
- 2001 Jun;5(1):57-65.
PURPOSE: T2-weighted half Fourier Echo Planar Imaging (T2HEPI) method is proposed to reduce measurement time of existing EPI by a factor of 2. In addition, high T2 contrast is obtained... -
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- Functional Imaging of Cerebral Cortex Activation with a 1.5-T IVIR Imaging System
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Kim HJ, Chung SH, Chang SA, Kim JH, Ha CK, Kim ES
- KMID: 2102582
- J Korean Radiol Soc.
- 1995 Jul;33(1):1-6.
PURPOSE: Most of recent MR imagings of cerebral cortex activation have been performed by using high field magnet above 2-T or echo-planar imaging technique. We report our experience on imaging of... -
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- Comparison of FSE and EPI with Brain MR Imaging
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Cho YK, Chang KH, Choi GM, Won HJ, Kim HD, Yu IK, Han MH
- KMID: 2025464
- J Korean Radiol Soc.
- 1997 Nov;37(5):789-795.
PURPOSE: To compare the usefulness of echo-planar imaging (EPI) and fast spin-echo (FSE) in routine brain MR imaging. MATERIALS AND METHODS: Twenty-five patients with various intracranial diseases were prospectively examined... -
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- MR Imaging of Focal Hepatic Masses: Comparison between Half-Fourier Acquisition Single-shot TSE(HASTE) andSingle-shot Echo Planar Imaging
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Lee JW, Kim HJ, Kim KI, Na YJ
- KMID: 2377149
- J Korean Radiol Soc.
- 1998 Jul;39(1):115-121.
PURPOSE: We undertook this study to evaluate breath-hold Half-Fourier Acquisition Single-shot TSE(HASTE) andsingle-shot echo planar MR imaging for the detection of focal hepatic masses. MATERIALS AND METHODS: Using a 1.5Tsuperconductive... -
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- Neuroactivation studies using Functional Brain MRI
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Chung GH
- KMID: 1516900
- Korean J Nucl Med.
- 2003 Feb;37(1):63-72.
Functional MRI (fMRI) provides an indirect mapping of cerebral activity, based on the detection of the local blood flow and oxygenation changes following neuronal activity (Blood Oxygenation Level Dependent). fMRI... -
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- Diagnostic Performance of Diffusion-Weighted Steady-State Free Precession in Differential Diagnosis of Neoplastic and Benign Osteoporotic Vertebral Compression Fractures: Comparison to Diffusion-Weighted Echo-Planar Imaging
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Shin JH, Jeong SY, Lim JH, Park J
- KMID: 2392686
- Investig Magn Reson Imaging.
- 2017 Sep;21(3):154-161.
- doi: 10.13104/imri.2017.21.3.154
PURPOSE: To evaluate the diagnostic performance of diffusion-weighted steady-state free precession (DW-SSFP) in comparison to diffusion-weighted echo-planar imaging (DW-EPI) for differentiating the neoplastic and benign osteoporotic vertebral compression fractures. MATERIALS AND... -
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- Utility of Readout-Segmented Echo-Planar Imaging-Based Diffusion Kurtosis Imaging for Differentiating Malignant from Benign Masses in Head and Neck Region
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Ma G, Xu XQ, Hu H, Su GY, Shen J, Shi HB, Wu FY
- KMID: 2410815
- Korean J Radiol.
- 2018 Jun;19(3):443-451.
- doi: 10.3348/kjr.2018.19.3.443
OBJECTIVE: To compare the diagnostic performance of readout-segmented echo-planar imaging (RS-EPI)-based diffusion kurtosis imaging (DKI) and that of diffusion-weighted imaging (DWI) for differentiating malignant from benign masses in head and... -
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- Single-Shot Echo-Planar Diffusion-Weighted MR Imaging at 3T and 1.5T for Differentiation of Benign Vertebral Fracture Edema and Tumor Infiltration
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Park HJ, Lee SY, Rho MH, Chung EC, Kim MS, Kwon HJ, Youn IY
- KMID: 2458051
- Korean J Radiol.
- 2016 Oct;17(5):590-597.
- doi: 10.3348/kjr.2016.17.5.590
OBJECTIVE: To compare the apparent diffusion coefficient (ADC) value using single-shot echo-planar imaging sequences at 3T and 1.5T for differentiation of benign fracture edema and tumor infiltration of the vertebral... -
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- Thyroid-Associated Orbitopathy: Evaluating Microstructural Changes of Extraocular Muscles and Optic Nerves Using Readout-Segmented Echo-Planar Imaging-Based Diffusion Tensor Imaging
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Chen HH, Hu H, Chen W, Cui D, Xu XQ, Wu FY, Yang T
- KMID: 2470757
- Korean J Radiol.
- 2020 Mar;21(3):332-340.
- doi: 10.3348/kjr.2019.0053
OBJECTIVE: We aimed to investigate the ability of readout-segmented echo-planar imaging (rs-EPI)-based diffusion tensor imaging (DTI) in assessing the microstructural change of extraocular muscles (EOMs) and optic nerves in patients... -
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- Diffusion Tensor Tractography of the Brainstem Pyramidal Tract: A Study on the Optimal Reduction Factor in Parallel Imaging
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Bae YJ, Park JB, Kim JH, Choi BS, Jung C
- KMID: 2344800
- J Korean Soc Radiol.
- 2016 Aug;75(2):113-120.
- doi: 10.3348/jksr.2015.73.6.113
PURPOSE: Parallel imaging mitigates susceptibility artifacts that can adversely affect diffusion tensor tractography (DTT) of the pons depending on the reduction (R) factor. We aimed to find the optimal R... -
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- Assessment of the Cerebrospinal Fluid Effect on the Chemical Exchange Saturation Transfer Map Obtained from the Full Z-Spectrum in the Elderly Human Brain
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Park S, Jang J, Oh JH, Ryu CW, Jahng GH
- KMID: 2468175
- Prog Med Phys.
- 2019 Dec;30(4):139-149.
- doi: 10.14316/pmp.2019.30.4.139
PURPOSE: With neurodegeneration, the signal intensity of the cerebrospinal fluid (CSF) in the brain increases. The objective of this study was to evaluate chemical exchange saturation transfer (CEST) signals with... -
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- Activation Pattern of the Somatosensory Cortex in Subcortical Stroke Patients with Clinical Sensory Recovery of Hand
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Lee ZI
- KMID: 2324246
- J Korean Acad Rehabil Med.
- 2005 Oct;29(5):445-449.
OBJECTIVE: To investigate the activation pattern of somatosensory cortex in subcortical stroke patients underlying recovered somatosensory capacity of hand, using functional MRI (fMRI). METHOD: Four patients with subcortical cerebral hemorrhage... -
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- Readout-Segmented Echo-Planar Imaging in Diffusion-Weighted MR Imaging in Breast Cancer: Comparison with Single-Shot Echo-Planar Imaging in Image Quality
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Kim YJ, Kim SH, Kang BJ, Park CS, Kim HS, Son YH, Porter DA, Song BJ
- KMID: 1731042
- Korean J Radiol.
- 2014 Aug;15(4):403-410.
- doi: 10.3348/kjr.2014.15.4.403
OBJECTIVE: The purpose of this study was to compare the image quality of standard single-shot echo-planar imaging (ss-EPI) and that of readout-segmented EPI (rs-EPI) in patients with breast cancer. MATERIALS AND... -
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- Hyperacute Intracerebral Hemorrhage: Comparison of EPI and Other MR Sequences
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Kim JH, Kim OH, Suh JH, Park YS
- KMID: 2000094
- J Korean Soc Magn Reson Med.
- 1999 Jun;3(2):167-172.
PURPOSE: To evaluate the detection rate of hyperacute intracerebral hemorrhage in echo planar imaging (EPI) and other MR sequences. MATERIALS AND METHODS: Intracerebral hemorrhage was experimentally induced in ten rats.... -
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- PROPELLER (periodically rotated overlapping parallel lines with enhanced reconstruction) and EPI Diffusion-weighted MR Imaging at 3.0T: Pontine Magnetic Susceptibility Artifacts Depend on Pneumatization of the Sphenoid Sinus
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Sohn CH, Kim IS
- KMID: 2024444
- J Korean Radiol Soc.
- 2006 Oct;55(4):321-326.
- doi: 10.3348/jkrs.2006.55.4.321
PURPOSE: In the case of well pneumatized sphenoid sinus, magnetic susceptibility artifact can be visualized at the brainstem and especially at the pons on echo-planar imaging (EPI) diffusion-weighted imaging. Fast... -
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- Accelerated Resting-State Functional Magnetic Resonance Imaging Using Multiband Echo-Planar Imaging with Controlled Aliasing
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Seo HS, Jang KE, Wang D, Kim IS, Chang Y
- KMID: 2400376
- Investig Magn Reson Imaging.
- 2017 Dec;21(4):223-232.
- doi: 10.13104/imri.2017.21.4.223
PURPOSE: To report the use of multiband accelerated echo-planar imaging (EPI) for resting-state functional MRI (rs-fMRI) to achieve rapid high temporal resolution at 3T compared to conventional EPI. MATERIALS AND METHODS:... -
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