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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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Future Directions in Coronary CT Angiography: CT-Fractional Flow Reserve, Plaque Vulnerability, and Quantitative Plaque Assessment

Kay FU, Canan A, Abbara S

Coronary computed tomography angiography (CCTA) is a well-validated and noninvasive imaging modality for the assessment of coronary artery disease (CAD) in patients with stable ischemic heart disease and acute coronary...
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Cone-Beam Computed Tomography-Hepatic Arteriography as a Diagnostic Tool for Small Hypervascular Hepatocellular Carcinomas: Method and Clinical Implications

Choi YR, Chung JW, Kim JH, Kim HC, Jae HJ, Hur S

OBJECTIVE: This study proposes a novel reference standard for hypervascular hepatocellular carcinomas (HCCs), established by cone-beam computed tomography-hepatic arteriography (CBCT-HA) and two-year imaging follow-up, and discusses its clinical implication on...
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In Vivo Detection of Lipid-Core Plaques by Coronary CT Angiography: A Head-to-Head Comparison with Histologic Findings

Yin WH, Zhang Y, Li XN, Wang HY, An YQ, Sun Y, Hou ZH, Gao Y, Lu B, Zheng Z

OBJECTIVE: We sought to distinguish lipid plaques using a CT quantitative pixel density histogram, based on the pathological diagnosis of lipid cores as the gold standard. MATERIALS AND METHODS: Eight patients...
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A Characteristic Finding of Spontaneous Coronary Artery Dissection by Computed Tomographic Angiography

Kim AR, Koo HJ, Lee PH

No abstract available.
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Comparative Analysis of Image Quality and Adverse Events between Iopamidol 250 and Ioversol 320 in Hepatic Angiography for Transcatheter Arterial Chemoembolization

Gu MJ, Yi JH, Kim YH, Lee HJ, Kang UR, Ji SW

PURPOSE: This study aimed to compare the image quality and adverse events between Iopamidol 250 and Ioversol 320 usage during transcatheter arterial chemoembolization (TACE) for hepatocellular carcinoma (HCC). MATERIALS AND METHODS:...
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Basic Arterial Anatomy and Interpretation of CT Angiography for Intra-Abdominal or Gastrointestinal Bleeding: Correlation with Conventional Angiographic Findings for Beginners

Han DY, Hwang JH, Kang HJ, Yoon J, Kwon SH, Seo TS, Oh JH

It is essential to identify the causative artery in case of active intra-abdominal or gastrointestinal bleeding. A thorough understanding of the basic arterial anatomy is required to identify the causative...
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Dichotomizing Level of Pial Collaterals on Multiphase CT Angiography for Endovascular Treatment in Acute Ischemic Stroke: Should It Be Refined for 6-Hour Time Window?

Woo HG, Jung C, Sunwoo L, Bae YJ, Choi BS, Kim JH, Kim BJ, Han MK, Bae HJ, Jung S, Cha SH

PURPOSE: Although endovascular treatment is currently thought to only be suitable for patients who have pial arterial filling scores >3 as determined by multiphase computed tomography angiography (mpCTA), a cut-off...
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Should Cerebral Angiography Be Avoided within Three Hours after Subarachnoid Hemorrhage?

An H, Park J, Kang DH, Son W, Lee YS, Kwak Y, Ohk B

OBJECTIVE: While the risk of aneurysmal rebleeding induced by catheter cerebral angiography is a serious concern and can delay angiography for a few hours after a subarachnoid hemorrhage (SAH), current...
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Optical coherence tomography angiography in preclinical neuroimaging

Choi WJ

Preclinical neuroimaging allows for the assessment of brain anatomy, connectivity, and function in laboratory animals, such as mice and this imaging field has been a rapidly growing aimed at bridging...
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Evaluation of Foveal Avascular Zone and Capillary Plexuses in Diabetic Patients by Optical Coherence Tomography Angiography

Ciloglu E, Unal F, Sukgen EA, Koçluk Y

PURPOSE: To investigate the foveal avascular zone (AVZ), superficial and deep foveal and parafoveal vessel density (VD) changes related to diabetic retinopathy. METHODS: Forty-nine type 2 diabetes mellitus (DM) and 45...
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Additive Role of Optical Coherence Tomography Angiography Vessel Density Measurements in Glaucoma Diagnoses

Kwon HJ, Kwon J, Sung KR

PURPOSE: This study compared the glaucoma diagnostic abilities of optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA). In addition, the possibility of enhancing diagnostic capability by combining the...
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Subclinical Coronary Atherosclerosis: Implication of Coronary Computed Tomography Angiography Findings among Statin Candidates according to the 2013 ACC/AHA Cholesterol Management Guidelines

Seo J, Choi SI, Kim YK

OBJECTIVE: To analyze the cardiovascular outcome of statin medication in individuals retrospectively categorized on the basis of the 2013 American College of Cardiology and American Heart Association (ACC/AHA) guidelines risk...
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Modified Subtraction Coronary CT Angiography with a Two-Breathhold Technique: Image Quality and Diagnostic Accuracy in Patients with Coronary Calcifications

Guo W, Tripathi P, Yang S, Qian J, Rai B, Zeng M

OBJECTIVE: To evaluate a modified subtraction coronary computed tomography angiography (CCTA) technique with a two-breathhold approach in terms of image quality and stenosis grading of calcified coronary segments and in...
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Interocular Symmetry of Optical Coherence Tomography Angiography Parameters in Normal Eyes of Korean Adults

Park HJ, Lim HB, Lee MW, Jo YJ, Kim JY

PURPOSE: To evaluate the interocular symmetry of microvascular parameters measured by optical coherence tomography angiography (OCTA) in normal eyes of Korean adults. METHODS: We retrospectively reviewed the retinal microvascular structure of...
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Prevalence and Clinical Outcomes of Asymptomatic Carotid Artery Stenosis in Patients Undergoing Concurrent Coronary and Carotid Angiography

Seo J, Kim GS, Lee HY, Byun YS, Jung IH, Rhee KJ, Kim BO

PURPOSE: The prevalence and clinical outcomes of asymptomatic carotid artery stenosis (CAS) in patients with coronary artery disease (CAD) have not been thoroughly studied. We examined the prevalence and predictors...
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Coronary CT Angiography with Knowledge-Based Iterative Model Reconstruction for Assessing Coronary Arteries and Non-Calcified Predominant Plaques

Li T, Tang T, Yang L, Zhang X, Li X, Luo C

OBJECTIVE: To assess the effects of iterative model reconstruction (IMR) on image quality for demonstrating non-calcific high-risk plaque characteristics of coronary arteries. MATERIALS AND METHODS: This study included 66 patients (53...
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Coronary Computed Tomography Angiography for the Diagnosis of Vasospastic Angina: Comparison with Invasive Coronary Angiography and Ergonovine Provocation Test

Park J, Kim HK, Park EA, Park JB, Lee SP, Lee W, Kim YJ, Sohn DW

OBJECTIVE: To investigate the diagnostic validity of coronary computed tomography angiography (cCTA) in vasospastic angina (VA) and factors associated with discrepant results between invasive coronary angiography with the ergonovine provocation...
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Complex Coronary Cameral Fistulas Evaluated by Multi-Detector CT Angiography: A Report of Three Rare Cases and a Review of the Literature

Sabarish S, Kanimozhi , Nagarajan

Congenital anomalies involving termination of a coronary artery and a fistulous communication with any cardiac chamber, pulmonary artery/vein, superior vena cava, or coronary sinus are defined as coronary cameral fistulas....
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Ideal Bolus Geometry Predicted from In vitro Pulsatile Flow Phantom and Artificial Neural Networks for the Optimization of Image Acquisition Protocols for Aortic Contrast-Enhanced Computed Tomography Angiography

Youn SW, Kwon J, Kim J, Park J, Ahn D, Lee J

OBJECTIVE: This study sought to explore the novel use of artificial neural networks (ANNs) to develop a contrast-enhanced computed tomography (CT) angiographic (CECTA) protocol based on ideal bolus geometry. MATERIALS AND...
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