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Myocardial Coverage and Radiation Dose in Dynamic Myocardial Perfusion Imaging Using Third-Generation Dual-Source CT

Takafuji M, Kitagawa K, Ishida M, Goto Y, Nakamura S, Nagasawa N, Sakuma H

OBJECTIVE: Third-generation dual-source computed tomography (3rd-DSCT) allows dynamic myocardial CT perfusion imaging (dynamic CTP) with a 10.5-cm z-axis coverage. Although the increased radiation exposure associated with the 50% wider scan...
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Clinical Applications of Wide-Detector CT Scanners for Cardiothoracic Imaging: An Update

Kang EJ

Technical developments in multidetector computed tomography (CT) have increased the number of detector rows on the z-axis, and 16-cm wide-area-coverage CT scanners have enabled volumetric scanning of the entire heart....
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Noninvasive Biomarker for Predicting Treatment Response to Concurrent Chemoradiotherapy in Patients with Hepatocellular Carcinoma

Chung YE, Park JY, Choi JY, Kim MJ, Park MS, Seong J

PURPOSE: To investigate noninvasive biomarkers for predicting treatment response in patients with locally advanced HCC who underwent concurrent chemoradiotherapy (CCRTx). MATERIALS AND METHODS: Thirty patients (55.5 ± 10.2 years old, M:F...
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Debates over NICE Guideline Update: What Are the Roles of Nuclear Cardiology in the Initial Evaluation of Stable Chest Pain?

Cho SG, Kim J, Song HC

Recent clinical trials have demonstrated the values of cardiac computed tomography (CT) in the initial evaluation of stable chest pain which led to drastic changes in the National Institute for...
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Optimizing Contrast Medium Injection for Coronary CT Angiography Using Myocardial CT Perfusion Data

Tomizawa N, Chou S, Matsuoka S, Yamamoto K, Inoh S, Nojo T, Kumamaru K, Fujimoto S, Nakamura S

OBJECTIVE: To derive and validate a formula to predict the optimal amount of contrast medium for coronary CT angiography (CTA) from CT perfusion (CTP) data during comprehensive cardiac CT. MATERIALS AND...
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Contrast Enhanced Ultrasound Perfusion Imaging in Skeletal Muscle

Nguyen T, Davidson B

The ability to accurately evaluate skeletal muscle microvascular blood flow has broad clinical applications for understanding the regulation of skeletal muscle perfusion in health and disease states. Contrast-enhanced ultrasound (CEU)...
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Dynamic Contrast-Enhanced Ultrasound of Gastric Cancer: Correlation with Perfusion CT and Histopathology

Joo I, Kim SH, Lee DH, Han JK

OBJECTIVE: To assess the relationship between contrast-enhanced ultrasound (CEUS) parameters and perfusion CT (PCT) parameters of gastric cancers and their correlation with histologic features. MATERIALS AND METHODS: This prospective study was...
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Myocardial Blood Flow Quantified by Low-Dose Dynamic CT Myocardial Perfusion Imaging Is Associated with Peak Troponin Level and Impaired Left Ventricle Function in Patients with ST-Elevated Myocardial Infarction

Pan J, Yuan M, Yu M, Gao Y, Shen C, Wang Y, Lu B, Zhang J

OBJECTIVE: To investigate the association of myocardial blood flow (MBF) quantified by dynamic computed tomography (CT) myocardial perfusion imaging (MPI) with troponin level and left ventricle (LV) function in patients...
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Prevalence of Decreased Myocardial Blood Flow in Symptomatic Patients with Patent Coronary Stents: Insights from Low-Dose Dynamic CT Myocardial Perfusion Imaging

Li Y, Yuan M, Yu M, Lu Z, Shen C, Wang Y, Lu B, Zhang J

OBJECTIVE: To study the prevalence and clinical characteristics of decreased myocardial blood flow (MBF) quantified by dynamic computed tomography (CT) myocardial perfusion imaging (MPI) in symptomatic patients without in-stent restenosis. MATERIALS...
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Assessment of Left Ventricular Myocardial Diseases with Cardiac Computed Tomography

Ko SM, Kim TH, Chun EJ, Kim JY, Hwang SH

Rapid advances in cardiac computed tomography (CT) have enabled the characterization of left ventricular (LV) myocardial diseases based on LV anatomical morphology, function, density, and enhancement pattern. Global LV function...
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Diagnostic Reference Levels for Adult Nuclear Medicine Imaging Established from the National Survey in Korea

Song HC, Na MH, Kim J, Cho SG, Park JK, Kang KW, Korean Society of Nuclear Medicine Diagnostic Reference Level Task Force

PURPOSE: There is substantial need for optimizing radiation protection in nuclear medicine imaging studies. However, the diagnostic reference levels (DRLs) have not yet been established for nuclear medicine imaging studies...
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Correlation Between Functional Myocardial Perfusion Imaging and Anatomical Cardiac CT in a Case of Myocardial Bridging

Mohd Rohani MF, Mohamed Yusof AK, Hashim H

Myocardial perfusion imaging (MPI) with single photon emission computed tomography (SPECT) is generally used to evaluate myocardial ischemia in patients with known or suspected coronary artery disease. Cardiac CT, on...
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Reduced Myocardial Flow Reserve Is Associated with Subendocardial Infarction and Coronary Stenosis in Patients with Coronary Artery Disease: A Perfusion MRI Study

Manabe O, Oyama-Manabe N, Naya M, Obara M, Kikuchi Y, Aikawa T, Tomiyama Y, Sugimori H, Katoh C, Tamaki N, Anzai T

OBJECTIVE: Although the relationship between coronary stenosis and myocardial perfusion is well established, little is known regarding the contribution of subendocardial infarction to this relationship. The purpose of this study...
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Dynamic Susceptibility Contrast (DSC) Perfusion MR in the Prediction of Long-Term Survival of Glioblastomas (GBM): Correlation with MGMT Promoter Methylation and 1p/19q Deletions

Kwon YW, Moon WJ, Park M, Roh HG, Koh YC, Song SW, Choi JW

PURPOSE: To investigate the surgical, perfusion, and molecular characteristics of glioblastomas which influence long-term survival after treatment, and to explore the association between MR perfusion parameters and the presence of...
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Emerging Tracers for Nuclear Cardiac PET Imaging

Kim DY, Cho SG, Bom HS

Myocardial perfusion imaging using positron emission tomography (PET) has several advantages over single photon emission computed tomography (SPECT). The recent advances in SPECT technology have shown promise, but there is...
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Postoperative Transient Neurologic Dysfunction: A Proposal for Pathophysiology

Phi JH, Lee SJ, Kang HS, Kim JE, Kim SK, Cho WS, Lee SY

BACKGROUND AND PURPOSE: Sudden neurological deterioration which cannot be explained by structural change, ischemia or seizure is often observed among neurosurgical patients. We aimed to provide new insight into the...
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Coronary Flow Reserve in Non-Infarcted Myocardium Predicts Long-Term Clinical Outcomes in Patients Undergoing Percutaneous Coronary Intervention

Cheng R, Zhu X, Li Y, Bai X, Xue L, Wei L

PURPOSE: Coronary flow reserve (CFR) is recognized as an indicator of myocardial perfusion. The aim of this study was to assess the relationship between CFR in the non-infarcted myocardium and...
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Chronic cerebral hypoperfusion and plasticity of the posterior cerebral artery following permanent bilateral common carotid artery occlusion

Cho KO, Kim SK, Kim SY

Vascular dementia (VaD) is a group of heterogeneous diseases with the common feature of cerebral hypoperfusion. To identify key factors contributing to VaD pathophysiology, we performed a detailed comparison of...
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Microstructural Abnormalities of Basal Ganglia and Thalamus in Bipolar and Unipolar Disorders: A Diffusion Kurtosis and Perfusion Imaging Study

Zhao L, Wang Y, Jia Y, Zhong S, Sun Y, Zhou Z, Zhang Z, Huang L

OBJECTIVE: Bipolar disorder (BD) is often misdiagnosed as unipolar depression (UD), leading to mistreatment and poor clinical outcomes. However, little is known about the similarities and differences in subcorticalgray matter...
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Comparison of Two Different Segmentation Methods on Planar Lung Perfusion Scan with Reference to Quantitative Value on SPECT/CT

Suh M, Kang YK, Ha S, Kim YI, Paeng JC, Cheon GJ, Park S, Kim YT, Lee DS, Kim EE, Chung JK

PURPOSE: Until now, there was no single standardized regional segmentation method of planar lung perfusion scan.We compared planar scan based two segmentation methods, which are frequently used in the Society...
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