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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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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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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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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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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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Diagnostic Performance of Coronary CT Angiography, Stress Dual-Energy CT Perfusion, and Stress Perfusion Single-Photon Emission Computed Tomography for Coronary Artery Disease: Comparison with Combined Invasive Coronary Angiography and Stress Perfusion Cardiac MRI

Chung HW, Ko SM, Hwang HK, So Y, Yi JG, Lee EJ

OBJECTIVE: To investigate the diagnostic performance of coronary computed tomography angiography (CCTA), stress dual-energy computed tomography perfusion (DE-CTP), stress perfusion single-photon emission computed tomography (SPECT), and the combinations of CCTA...
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Recent Advances in Nuclear Cardiology

Lee WW

Nuclear cardiology is one of the major fields of nuclear medicine practice. Myocardial perfusion studies using single-photon emission computed tomography (SPECT) have played a crucial role in the management of...
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Scientific Statement for Screening of Coronary Artery Disease in Patients with Ischemic Stroke

Song D, Kim YD, Hong KS, Yoon BW, Lee BC, Rha JH, Kwon SU, Bae HJ, Yu KH, Park JM, Park KY, Ko SB, Oh CW, Kim JE, Heo JH

Ischemic stroke and myocardial infarction share common risk factors and pathophysiologic mechanisms. Unrecognized coronary artery disease typically occurs in 20-30% of patients with ischemic stroke, and its presence helps to...
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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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Development of Coronary Vasospasm during Adenosine-Stress Myocardial Perfusion CT Imaging

Nam JG, Choi SH, Kang BS, Bang MS, Kwon WJ

Adenosine is a short-acting coronary vasodilator, and it is widely used during pharmacological stress myocardial perfusion imaging. It has a well-established safety profile, and most of its side effects are...
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A Primer on the Methods and Applications for Contrast Echocardiography in Clinical Imaging

Seol SH, Lindner JR

Contrast echocardiography is broadly described as a variety of techniques whereby the blood pool on cardiac ultrasound is enhanced with encapsulated gas-filled microbubbles or other acoustically active nano- or microparticles....
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Clinical Utility of Coronary CT Angiography with Stress Perfusion CT in Preoperative Cardiac Risk Evaluation

Chang SA, Kim SM, Choi SH, Choe YH, Kim YW, Kim DK

BACKGROUND AND OBJECTIVES: Vascular surgery carries high operative risk. Recently developed cardiac computed tomography (CT) provides excellent imaging of coronary artery disease (CAD), as well as myocardial perfusions. We investigated...
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Non-Ischemic Perfusion Defects due to Delayed Arrival of Contrast Material on Stress Perfusion Cardiac Magnetic Resonance Imaging after Coronary Artery Bypass Graft Surgery

Kim YK, Park EA, Park SJ, Cheon GJ, Lee W, Chung JW, Park JH

Herein we report about the adenosine stress perfusion MR imaging findings of a 50-year-old man who exhibited two different perfusion defects resulting from two different mechanisms after a coronary artery...
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Myeloperoxidase Is Not Useful for Detecting Stress Inducible Myocardial Ischemia but May Be Indicative of the Severity of Coronary Artery Disease

Schuhmann , Hacker M, Jung P, Krotz F, Sohn HY

BACKGROUND AND OBJECTIVES: Elevated levels of myeloperoxidase (MPO) have been found in patients in different stages of coronary artery disease (CAD). The aim of this study was to assess whether...
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