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Embolotherapy of Ruptured Gastroepiploico-Colic Communicating Artery with Median Arcuate Ligament Syndrome: A Case Report

Lee YH, Kim JW, Park JH

Aneurysm of collateral vessels in celiac axis stenosis has seldom been reported. We report a case of hemoperitoneum due to spontaneous aneurysmal rupture of a previously unreported collateral vessel in...
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Visual Loss with Ophthalmoplegia after Prone Position Spinal Surgery

Park MH, Kim JH, Yoo JM

PURPOSE: We report a case of acute visual loss with ophthalmoplegia after prone position spinal surgery who had blood supply dependence on collateral circulation due to occlusion of the Internal...
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Efficacy and Safety of Endovascular Treatment in Patients with Internal Carotid Artery Occlusion and Collateral Middle Cerebral Artery Flow

Kim YW, Kang DH, Kim YS, Hwang YH

OBJECTIVE: In patients with internal carotid artery (ICA) occlusion, collateral middle cerebral artery (MCA) flow has a protective role against ischemia. However, some of these patients may experience initial major...
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Neuroimaging in Acute Ischemic Stroke: Role and Recent Advances

Cho SJ, Jung SC, Suh CH, Kim KW, Woo DC, Oh WY, Lee JG, Kim BJ

Neuroimaging plays a key role in assessing the detection of acute hemorrhage, diagnosis of infarct core, detection of steno-occlusive arteries, mismatch between infarct core and penumbra, and collateral circulation in...
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Role of Myocardial Extracellular Volume Fraction Measured with Magnetic Resonance Imaging in the Prediction of Left Ventricular Functional Outcome after Revascularization of Chronic Total Occlusion of Coronary Arteries

Chen Y, Zheng X, Jin H, Deng S, Ren D, Greiser A, Fu C, Gao H, Zeng M

OBJECTIVE: The purpose of this study was to prospectively investigate the value of the myocardial extracellular volume fraction (ECV) in predicting myocardial functional outcome after revascularization of coronary chronic total...
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Outcome Prediction Using Perfusion Parameters and Collateral Scores of Multi-Phase and Single-Phase CT Angiography in Acute Stroke: Need for One, Two, Three, or Thirty Scans?

Schregel K, Tsogkas I, Peter C, Zapf A, Behme D, Schnieder , Maier IL, Liman J, Knauth M, Psychogios MN

BACKGROUND AND PURPOSE: Collateral status is an important factor determining outcome in acute ischemic stroke (AIS). Hence, different collateral scoring systems have been introduced. We applied different scoring systems on...
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Hybrid Coronary Artery Revascularization for Takayasu Arteritis with Major Visceral Collateral Circulation from the Left Internal Thoracic Artery

Sim HT, Kim JW, Yoo JS, Cho KR

Coronary arterial involvement in Takayasu arteritis (TA) is not uncommon. Herein, we describe a case of TA with celiac trunk and superior mesenteric artery occlusion combined with coronary artery disease....
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CT Angiography of Collateral Vessels and Outcomes in Endovascular-Treated Acute Ischemic Stroke Patients

Kim BJ, Chung JW, Park HK, Kim JY, Yang MH, Han MK, Jeong C, Hwang G, Kwon OK, Bae HJ

BACKGROUND AND PURPOSE: Measuring the extent of the collateral blood vessels using computed tomography (CT) angiography source images may promote tissue survival and functional gain in acute ischemic stroke patients...
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Impact of Slow Blood Filling via Collaterals on Infarct Growth: Comparison of Mismatch and Collateral Status

Son JP, Lee MJ, Kim SJ, Chung JW, Cha J, Kim GM, Chung CS, Lee KH, Bang OY

BACKGROUND AND PURPOSE: Perfusion-diffusion mismatch has been evaluated to determine whether the presence of a target mismatch helps to identify patients who respond favorably to recanalization therapies. We compared the...
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Fusiform Superior Cerebellar Artery Aneurysm Treated with Endovascular Treatment

Jeon JB, Oh SY, Hyun DK, Shim YS

An aneurysm of the distal superior cerebellar artery (SCA) is a highly rare disease. Fusiform aneurysms of the distal SCA are particularly challenging to treat. Clipping, trapping with or without...
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Endovascular Treatment of Giant Serpentine Aneurysm of the Middle Cerebral Artery

Jeong YH, Kim JY, Koo YM, Choi JW, Whang K, Hu C, Cho SM

Giant serpentine aneurysms are uncommon types of aneurysmal disease and have angiographically authentic features. We report a case of a 44-year-old male with headache and seizure. He presented a giant...
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Analysis of the Outcome and Prognostic Factors of Decompressive Craniectomy between Young and Elderly Patients for Acute Middle Cerebral Artery Infarction

Yoo BR, Yoo CJ, Kim MJ, Kim WK, Choi DH

OBJECTIVE: We compared the effect of decompressive craniectomy between patients < 65 and ≥ 65 years age and investigated prognostics factors that may help predict favorable outcome in acute stroke...
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Vertebral Uptake of Tc-99m Macroaggregated Albumin (MAA) with SPECT/CT Occurring in Superior Vena Cava Obstruction

Karls S, Hassoun H, Derbekyan

A 67-year-old male presented with dyspnea for which lung scintigraphy was ordered to rule out pulmonary embolus. Planar images demonstrated abnormal midline uptake of Tc-99m macroaggregated albumin, which SPECT/CT localized...
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Differentiating Carotid Terminus Occlusions into Two Distinct Populations Based on Willisian Collateral Status

Lee SU, Hong JM, Kim SY, Bang OY, Demchuk AM, Lee JS

BACKGROUND AND PURPOSE: The outcomes of acute internal carotid artery (ICA) terminus occlusions are poor. We classified ICA terminus occlusions into 2 groups according to the occlusion pattern of the...
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Correlation of Angina Pectoris and Perfusion Decrease by Collateral Circulation in Single-Vessel Coronary Chronic Total Occlusion Using Myocardial Perfusion Single-Photon Emission Computed Tomography

Cho SG, Park KS, Kang SR, Kim J, Jun HM, Cho JY, Jeong HC, Kim JH, Jeong GC, Park HJ, Kwon SY, Min JJ, Bom HH, Song HC

PURPOSE: To evaluate the perfusion decrease in donor myocardium by collateral circulation and its correlation with angina pectoris in patients with chronic total occlusion (CTO) using myocardial perfusion single-photon emission...
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The Association between Whole Blood Viscosity and Coronary Collateral Circulation in Patients with Chronic Total Occlusion

Cetin MS, Ozcan Cetin EH, Balcı KG, Aydin S, Ediboglu E, Bayraktar , Balcı MM, Maden O, Temizhan A, Aydogdu S

BACKGROUND AND OBJECTIVES: Coronary collateral circulation (CCC) has been attributed as inborn bypass mechanisms supporting ischemic myocardium. Various factors have been postulated in CCC. Whole blood viscosity (WBV) has been...
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Quantitative Magnetic Resonance Angiography in Internal Carotid Artery Occlusion with Primary Collateral Pathway

Bae YJ, Jung C, Kim JH, Choi BS, Kim E

BACKGROUND AND PURPOSE: Quantitative magnetic resonance angiography (Q-MRA) enables direct measurement of volume flow rate (VFR) of intracranial arteries. We aimed to evaluate the collateral flows in internal carotid artery...
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Assessment of Myocardial Collateral Blood Flow with Contrast Echocardiography

Kaul S

Humans have pre-formed collateral vessels that enlarge with ischemia. In addition, new vessels can be formed within ischemic zones from pre-formed endocardial arcades of vessels providing rich collateral flow. Collateral...
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Ivy Sign on Fluid-Attenuated Inversion Recovery Images in Moyamoya Disease: Correlation with Clinical Severity and Old Brain Lesions

Seo KD, Suh SH, Kim YB, Kim JH, Ahn SJ, Kim DS, Lee KY

PURPOSE: Leptomeningeal collateral, in moyamoya disease (MMD), appears as an ivy sign on fluid-attenuated inversion-recovery (FLAIR) images. There has been little investigation into the relationship between presentation of ivy signs...
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Impacts of Rapid Recanalization and Collateral Circulation on Clinical Outcome after Intraarterial Thrombolysis

Jeong HS, Kwon HJ, Song HJ, Koh HS, Kim YS, Lee JH, Shin JE, Lee SH, Kim J

BACKGROUND AND PURPOSE: Rapid recanalization might improve clinical outcomes after intraarterial thrombolysis (IAT) for acute ischemic stroke patients with collateral circulation. We determined whether rapid recanalization and collateral circulation affect...
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