- Non-Invasive Follow-up Evaluation of Post-Embolized AVM with Time-Resolved MRA: A Case Report
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Shim YW, Chung TS, Kang WS, Joo JY, Strecker R, Hennig J
- KMID: 1118797
- Korean J Radiol.
- 2002 Dec;3(4):271-275.
- doi: 10.3348/kjr.2002.3.4.271
We report the hemodynamic assessment in a patient with cerebral arteriovenous malformation using time-resolved magnetic resonance angiography (TRMRA), a non-invasive modality, and catheter-based digital subtraction angiography (DSA), before and after... -
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- Hemodynamic Change in Pulmonary Vein Stenosis after Radiofrequency Ablation: Assessment with Magnetic Resonance Angiography
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Yun D, Jung JI, Oh YS, Youn HJ
- KMID: 1397515
- Korean J Radiol.
- 2012 Dec;13(6):816-819.
- doi: 10.3348/kjr.2012.13.6.816
We present a case of pulmonary vein (PV) stenosis after radio-frequency (RF) ablation, in which a hemodynamic change in the pulmonary artery was similar to that of congenital PV atresia... -
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- An Analysis of Extravariceal Collaterals of Gastric Varices Using Magnetic Resonance Angiography in Portal Hypertensive Patients
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Park CH, Chun HJ, Jeong RS, Kim KH, Kim YS, Kim YS, Jeen YT, Lee HS, Um SH, Lee SW, Choi JH, Kim CD, Ryu HS, Hyun JH
- KMID: 772562
- Korean J Gastroenterol.
- 2003 Oct;42(4):313-321.
BACKGROUND/AIMS: This study was aimed to analyze the relationship between gastric varices and its collaterals using magnetic resonance angiography (MRA) and to assess the usefulness of MRA in studies of... -
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- Mismatch between TOF MR Angiography and CT Angiography of the Middle Cerebral Artery may be a Critical Sign in Cerebrovascular Dynamics
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Igase K, Igase M, Matsubara , Sadamoto K
- KMID: 2418852
- Yonsei Med J.
- 2018 Jan;59(1):80-84.
- doi: 10.3349/ymj.2018.59.1.80
PURPOSE: Although time-of-flight (TOF)-magnetic resonance angiography (MRA) can clearly depict intracranial arteries, the arterial flow of middle cerebral artery (MCA) is occasionally not detected. We evaluated this phenomenon with reference... -
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- Hemodynamic Significance of Internal Carotid or Middle Cerebral Artery Stenosis Detected on Magnetic Resonance Angiography
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Seo HJ, Pagsisihan JR, Paeng JC, Choi SH, Cheon GJ, Chung JK, Lee DS, Kang KW
- KMID: 2345901
- Yonsei Med J.
- 2015 Nov;56(6):1686-1693.
- doi: 10.3349/ymj.2015.56.6.1686
PURPOSE: We evaluated hemodynamic significance of stenosis on magnetic resonance angiography (MRA) using acetazolamide perfusion single photon emission computed tomography (SPECT). MATERIALS AND METHODS: Of 171 patients, stenosis in internal carotid... -
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- Prevalence of Unruptured Intracranial Aneurysm on MR Angiography
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Jeon TY, Jeon P, Kim KH
- KMID: 1116439
- Korean J Radiol.
- 2011 Oct;12(5):547-553.
- doi: 10.3348/kjr.2011.12.5.547
OBJECTIVE: To evaluate the prevalence of incidentally found unruptured intracranial aneurysms (UIAs) on the brain MR angiography (MRA) from a community-based general hospital. MATERIALS AND METHODS: This was a prospectively collected... -
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- Time-Resolved 3D Contrast-Enhanced MRA on 3.0T: a Non-Invasive Follow-Up Technique after Stent-Assisted Coil Embolization of the Intracranial Aneurysm
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Choi JW, Roh HG, Moon WJ, Kim NR, Moon SG, Kang CH, Chun YI, Kang HS
- KMID: 1101919
- Korean J Radiol.
- 2011 Dec;12(6):662-670.
- doi: 10.3348/kjr.2011.12.6.662
OBJECTIVE: To evaluate the usefulness of time-resolved contrast enhanced magnetic resonance angiography (4D MRA) after stent-assisted coil embolization by comparing it with time of flight (TOF)-MRA. MATERIALS AND METHODS: TOF-MRA and... -
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- Perfusion Imaging of the Brain Using Z-Score and Dynamic Images Obtained by Subtracting Images from before and after Contrast Injection
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Choi S, Liu H, Shin TB, Lee JH, Yoon SK, Oh JY, Lee YI
- KMID: 1118818
- Korean J Radiol.
- 2004 Sep;5(3):143-148.
- doi: 10.3348/kjr.2004.5.3.143
OBJECTIVE: The aim of this study was to examine the feasibility of perfusion imaging of the brain using the Z-score and subtraction dynamic images obtained from susceptibility contrast MR images.... -
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- Diffusion and Perfusion Characteristics of MELAS (Mitochondrial Myopathy, Encephalopathy, Lactic Acidosis, and Stroke-Like Episode) in Thirteen Patients
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Kim JH, Lim MK, Jeon TY, Rha JH, Eo H, Yoo SY, Shu CH
- KMID: 991678
- Korean J Radiol.
- 2011 Feb;12(1):15-24.
- doi: 10.3348/kjr.2011.12.1.15
OBJECTIVE: We analyzed the diffusion and perfusion characteristics of acute MELAS (mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episode) lesions in a large series to investigate the controversial changes of... -
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- Differentiation of Deep Subcortical Infarction Using High-Resolution Vessel Wall MR Imaging of Middle Cerebral Artery
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Bae YJ, Choi BS, Jung C, Yoon YH, Sunwoo L, Bae HJ, Kim JH
- KMID: 2427206
- Korean J Radiol.
- 2017 Dec;18(6):964-972.
- doi: 10.3348/kjr.2017.18.6.964
OBJECTIVE: To evaluate the utility of high-resolution vessel wall imaging (HR-VWI) of middle cerebral artery (MCA), and to compare HR-VWI findings between striatocapsular infarction (SC-I) and lenticulostriate infarction (LS-I). MATERIALS AND... -
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- High Shear Stress at the Surface of Enhancing Plaque in the Systolic Phase is Related to the Symptom Presentation of Severe M1 Stenosis
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Suh DC, Park ST, Oh TS, Park SO, Lim OK, Park S, Ryu CW, Lee DH, Ko YB, Lee SW, Yoon K, Kim JS
- KMID: 1783220
- Korean J Radiol.
- 2011 Aug;12(4):515-518.
- doi: 10.3348/kjr.2011.12.4.515
The computational fluid dynamics methods for the limited flow rate and the small dimensions of an intracranial artery stenosis may help demonstrate the stroke mechanism in intracranial atherosclerosis. We have... -
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- An Effective Guidewire Looping Technique for the Recanalization of Occlusive Segments of Infrapopliteal Vessels
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Wang JB, Zhao JG, Li MH, Zhu YQ, Wang J, Zhang PL
- KMID: 984898
- Korean J Radiol.
- 2010 Aug;11(4):441-448.
- doi: 10.3348/kjr.2010.11.4.441
OBJECTIVE: To determine the efficacy, safety and primary follow-up results of a guidewire looping technique for the treatment of infrapopliteal arteries. MATERIALS AND METHODS: From October 2006 to May 2008,... -
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