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Perceived Dark Rim Artifact in First-Pass Myocardial Perfusion Magnetic Resonance Imaging Due to Visual Illusion

Shin T, Nayak KS

OBJECTIVE: To demonstrate that human visual illusion can contribute to sub-endocardial dark rim artifact in contrast-enhanced myocardial perfusion magnetic resonance images. MATERIALS AND METHODS: Numerical phantoms were generated to simulate the...
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Alpha Stent for Coiling of Unruptured, Wide-Necked, Distal Internal Carotid Artery Aneurysms: Safety and Effectiveness at 6 Months

Song Y, Sheen JJ, Kim JG, Lee SH, Cho SH, Park JC, Choi CG, Lee DH

OBJECTIVE: The Alpha stent (CGBio), a new intracranial stent featuring a re-sheathable mesh design with improved wall apposition at the curved segment, was clinically evaluated. We report the 6-month follow-up...
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Plasma Fibroblast Growth Factor 23 Concentration Is Associated with Intracranial Cerebral Atherosclerosis in Acute Ischemic Stroke Patients

Chang Y, Kim J, Woo HG, Ryu DR, Oh HJ, Song TJ

BACKGROUND AND PURPOSE: Fibroblast growth factor 23 (FGF23) is associated with atherosclerosis via nitric-oxide-associated endothelial dysfunction and calcium-phosphate-related bone mineralization. This study aimed to determine the association of the plasma...
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Delayed Onset Abducens Nerve Palsy and Horner Syndrome after Treatment of a Traumatic Carotid-cavernous Fistula

Kim WJ, Moon CW, Kim MM

PURPOSE: We report a patient with delayed-onset abducens nerve palsy and Horner syndrome after endovascular treatment of traumatic carotid-cavernous fistula (CCF). CASE SUMMARY: A 68-year-female visited our ophthalmic department complaining of...
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De Novo Intracranial Aneurysms Detected on Imaging Follow-Up of Coiled Aneurysms in a Korean Population

Yeon EK, Cho YD, Yoo DH, Lee SH, Kang HS, Cho WS, Kim JE, Han MH

OBJECTIVE: Coiled aneurysms are known to recanalize over time, making follow-up evaluations mandatory. Although de novo intracranial aneurysms (DNIAs) are occasionally detected during routine patient monitoring, such events have not...
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Obtaining Informed Consent Using Patient Specific 3D Printing Cerebral Aneurysm Model

Kim PS, Choi CH, Han IH, Lee JH, Choi HJ, Lee JI

OBJECTIVE: Recently, three-dimensional (3D) printed models of the intracranial vascular have served as useful tools in simulation and training for cerebral aneurysm clipping surgery. Precise and realistic 3D printed aneurysm...
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Imaging Features and Pathologic Correlation of Papillary Meningioma: A Case Report

Kim HY, Yu IK, Kim SM

Papillary meningioma is rare meningeal tumors and is associated with aggressive clinical behavior as compared with other meningiomas. We report a case of papillary meningioma in a 50-year-old woman presented...
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Serum Cadmium Level Is Positively Associated with Unruptured Intracranial Aneurysm Incidence

Yoon BN, Lee JB, Jin GH, Kim WY

BACKGROUND: Cadmium is a toxic element in cigarette smoke associated with ischemic vascular disease. Its association with cerebral aneurysm is unknown. METHODS: We retrospectively analyzed the medical records of patients with...
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Oculomotor nerve palsy associated with internal carotid artery: case reports

Kim HI, Choi HJ

Oculomotor nerve palsy limits the specific direction eyeball movement, and represents diplopia, mydriasis, and ptosis. The vascular-associated etiologies of oculomotor nerve palsy are the microvascular ischemia due to hypertension or...
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Magnetic resonance angiography of hypoplastic A1 segment of anterior cerebral artery at 3.0-Tesla in Andhra Pradesh population of India

Pentyala S, Sankar KD, Bhanu PS, Kumar NS

Pre-communicating or A1 segment of anterior cerebral artery (A1ACA) hypoplasia can negotiate the anterior cerebral circulation. Not many studies have been examined the association of hypoplastic A1ACA and cerebral ischemic...
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Bilateral Occipital Lobe Infarction Presenting as Bilateral Inferior Altitudinal Defects

Han SW, Chung SA

PURPOSE: Horizontal visual field defects are generally caused by lesions before the optic chiasm, but we report a case with bilateral inferior altitudinal defects secondary to bilateral occipital lobe infarction. CASE...
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Reversible Cerebral Vasoconstriction Syndrome Misdiagnosed as Moyamoya Disease with Transient Ischemic Attack as Initial Manifestation

Kim DH, Kim JG, Kim JO, Lee SJ

Reversible cerebral vasoconstriction syndrome (RCVS) is a disease characterized by reversible and multiple stenoses of cerebral blood vessels that improve within 3 months, accompanied by thunderclap headache. Here, we report...
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Evaluation of Tumor Blood Flow Using Alternate Ascending/Descending Directional Navigation in Primary Brain Tumors: A Comparison Study with Dynamic Susceptibility Contrast Magnetic Resonance Imaging

Park H, Lee J, Park SH, Choi SH

OBJECTIVE: Alternate ascending/descending directional navigation (ALADDIN) is a novel arterial spin labeling technique that does not require a separate spin preparation pulse. We sought to compare the normalized cerebral blood...
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Accelerated Time-of-Flight Magnetic Resonance Angiography with Sparse Undersampling and Iterative Reconstruction for the Evaluation of Intracranial Arteries

Tang H, Hu N, Yuan Y, Xia C, Liu X, Zuo P, Stalder AF, Schmidt M, Zhou X, Song B, Sun J

OBJECTIVE: To compare the image quality of three-dimensional time-of-flight (TOF) magnetic resonance angiography (MRA) with sparse undersampling and iterative reconstruction (sparse TOF) with that of conventional TOF MRA. MATERIALS AND METHODS:...
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Intraarterial therapy for middle cerebral artery dissection with intramural hematoma detection on susceptibility-weighted imaging

Yoon C, Jung S, Jeong H, Cho E, Yang TW, Kim SJ, Park KJ, Kim SS, Park H

BACKGROUND: Intracranial artery dissection (IAD) may be an underdiagnosed cause of large vessel occlusion. The safety and efficacy of intra-arterial therapy (IAT) in patients with IAD are largely unknown. We...
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Diagnosis and treatment of adult Moyamoya disease

Kim JE, Pang CH

Moyamoya disease (MMD) refers to a chronic progressive steno-occlusive disease at the distal portion of the internal carotid artery with abnormal collateral vessel formation of unknown etiology. The definite diagnosis...
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Feasibility and Effectiveness of Direct Puncture and Onyx Embolization for Transverse Sinus Dural Arteriovenous Fistula

Nam TK, Byun JS, Choi HH, Chung MS, Lee EJ

Direct puncture and embolization of the transverse sinus (TS) for treatment of dural arteriovenous fistula (DAVF) is typically performed with coils with or without glue. We report a case of...
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Altered Regional Cerebral Blood Flow Associated with Mood and Sleep in Shift Workers: Cerebral Perfusion Magnetic Resonance Imaging Study

Park YK, Kim JH, Choi SJ, Kim ST, Joo EY

BACKGROUND AND PURPOSE: Shift work disrupts the body's circadian rhythms and increases the risk of health problems. Despite evidence of neuropsychological disturbances in shift workers (SW), the brain functional status...
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RASA1-Related Parkes Weber Syndrome in a Neonate

Koh HR, Lee YK, Ko SY, Shin SM, Han BH

Parkes Weber syndrome is a rare congenital vascular anomaly, related to the RAS p21 protein activator 1 (RASA1) gene. It is characterized by capillary cutaneous malformations, bony and soft tissue...
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Pulsatility of middle cerebral arteries is better correlated with white matter hyperintensities than aortic stiffening

Lee SH, Kim Y, Lee Y, Lee JH

BACKGROUND: Pulsatility of cerebral arteries and aortic stiffness have been associated with white matter hyperintensities (WMH). We explored which is better correlated with the severity of WMH in a population...
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