- Simple but Organized Neurology Residency Training Improves the Quality of Acute Stroke Care: From the Outset to Long-Term Effect
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Chang YM, Wang CM, Lin PY, Sung PS, Lin SH, Chen CH
- KMID: 2516421
- J Stroke.
- 2021 May;23(2):293-295.
- doi: 10.5853/jos.2020.04910
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- Management of Hyperacute Stroke during the Coronavirus Disease of 2019 Pandemic: The Modified Code Stroke in a Medical Center in Taiwan
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Lin PY, Chang YM, Huang CY, Lin CH, Chuang MT, Chen PL, Sung PS, Chen CH
- KMID: 2503115
- J Stroke.
- 2020 May;22(2):278-281.
- doi: 10.5853/jos.2020.01599
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- A Suggestion of New Integrated Prognostic Factor for Aortic Aneurysm: Ta n gential Stress Index
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Lee JJ, Chang YM, Ryeom HK, Lee SK, Kim YJ, Kang DS
- KMID: 2200930
- J Korean Radiol Soc.
- 1999 Jun;40(6):1077-1085.
- doi: 10.3348/jkrs.1999.40.6.1077
PURPOSE: To construct a useful index for use as a prognostic factor in cases of aortic aneurysm. MATERIALS AND METHODS: Using CT or EBT, we studied nine ruptured aortic aneurysms,... -
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- Contrast-Enhanced Magnetic Resonance Angiography: Dose the Test Dose Bolus Represent the Main Dose Bolus Accurately?
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Lee JJ, Chang YM, Kang DS
- KMID: 966479
- Korean J Radiol.
- 2000 Jun;1(2):91-97.
- doi: 10.3348/kjr.2000.1.2.91
OBJECTIVE: To determine whether the time-intensity curves acquired by test and main dose contrast injections for MR angiography are similar. MATERIALS AND METHODS: In 11 patients, repeated contrast-enhanced 2D-turbo-FLASH scans... -
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- Low-dose Contrast-enhanced Magnetic Resonance Angiography with Less than the Standard Dose of Gadolinium Chelate: Comparison with Conventional Digital Subtraction Angiography
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Lee JM, Chang YM, Kim YS, Kim YJ, Kang DS
- KMID: 2200744
- J Korean Radiol Soc.
- 2000 Jun;42(6):909-917.
- doi: 10.3348/jkrs.2000.42.6.909
PURPOSE: To evaluate the effectiveness of contrast-enhanced MR angiography (CEM-RA)using gadolinium chelate at less than the standard dose. MATERIALS AND METHODS: Eight patients with occlusive arterial disease underwent 16 CEMRA... -
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- The Optimization of Scan Timing for Contrast-Enhanced Magnetic Resonance Angiography
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Lee JJ, Tirman PJ, Chang YM, Ryeom HK, Lee SK, Kim YS, Kang DS
- KMID: 877074
- Korean J Radiol.
- 2000 Sep;1(3):142-151.
- doi: 10.3348/kjr.2000.1.3.142
OBJECTIVE: To determine the optimal scan timing for contrast-enhanced magnetic resonance angiography and to evaluate a new timing method based on the arteriovenous circulation time. MATERIALS AND METHODS: Eighty-nine contrast-enhanced... -
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- The Correlation of Motor Impairment and Fractional Anisotropy in Diffusion Tensor Imaging in Post-stroke Hemiplegic Patients
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Park GY, Ro HJ, Lee SY, Lim JG, Paik SK, Chang YM, Lee J
- KMID: 2323992
- J Korean Acad Rehabil Med.
- 2004 Apr;28(2):122-125.
OBJECTIVE: Diffusion tensor imaging (DTI) fully characterizes water molecule mobility, allowing an exploration of fiber tract integrity and orientation in the human brain. The purpose of this study was to... -
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- Usefulness of ACR MRI Phantom for Quality Assurance of MRI Instruments
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Lee JW, Ahn KJ, Lee SK, Na DG, Oh CH, Chang YM, Lim TH
- KMID: 2024583
- J Korean Radiol Soc.
- 2006 Jan;54(1):47-55.
- doi: 10.3348/jkrs.2006.54.1.47
PURPOSE: To examine whether the ACR phantom could be used in quality standards for magnetic resonance imaging (MRI) instruments in Korea. MATERIALS AND METHODS: We conducted the phantom test using the... -
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- (17)O NMR Study On Water Exchange Rate of Paramagnetic Contrast Agents
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Chang YM, Hong SW, Hwang MJ, Rhee IS, Kang DS
- KMID: 2099803
- J Korean Soc Magn Reson Med.
- 2001 Jun;5(1):33-37.
PURPOSE: The water exchange rate between bulk water and bound water is an important parameter in deciding the efficiency of paramagnetic contrast agents. In this study, we evaluated the water... -
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- MR study of water exchange and cell membrane permeability in rat liver cells using a tissue-specific MR contrast agent
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Chang YM, Kim YS, Lee SK, Ryeom HK, Lee JM, Suh KJ, Kim YJ, Kang DS, Clarkson R
- KMID: 2206854
- J Korean Soc Magn Reson Med.
- 1998 Jun;2(1):73-82.
PURPOSE: A precise NMR technique for measuring the rate of water exchange and cell membrane permeability across the hepatocyte membrane using liver-specific MR contrast agent is described. ATERIAL AND METHODS:... -
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- Multi-Component Relaxation Study of Human Brain Using Relaxographic Analysis
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Chang YM, Han BS, Kang BS, Jeon KN, Bae KS, Kim YS, Kang DS
- KMID: 2000071
- J Korean Soc Magn Reson Med.
- 2002 Dec;6(2):120-128.
PURPOSE: To demonstrate that the relaxographic method provides additional information such as the distribution of relaxation times and water content which are poentially applicable to clinical medicine. MATERIALS AND METHODS:... -
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- The Effects of Essential Aroma Oils on Brain Activation: Olfactory Functional MRI and c-Fos Expression
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Ye MK, Shin SH, Park KP, Lee SH, Cho TH, Lee JE, Chang YM, Jeong OR
- KMID: 2037140
- Korean J Otolaryngol-Head Neck Surg.
- 2003 May;46(5):401-408.
BACKGROUND AND OBJECTIVES: For centuries, fragrance had beneficial psychological and physiological effects on humans. Aromatherapy, the use of concentrated essential oils extracted from herbs, flowers, and other parts of plants... -
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- Quantitative Evaluation of Liver Function with MRI Using Gd-EOB-DTPA
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Ryeom HK, Kim SH, Kim JY, Kim HJ, Lee JM, Chang YM, Kim YS, Kang DS
- KMID: 1118830
- Korean J Radiol.
- 2004 Dec;5(4):231-239.
- doi: 10.3348/kjr.2004.5.4.231
OBJECTIVE: Gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd-EOB-DTPA) is a newly developed MR contrast agent. After intravenous injection, Gd-EOB-DTPA is gradually taken up by the hepatocytes and eventually excreted via the biliary... -
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