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Rapid Increase in Marrow Fat Content and Decrease in Marrow Perfusion in Lumbar Vertebra Following Bilateral Oophorectomy: An MR Imaging-Based Prospective Longitudinal Study

Wang YX, Griffith J, Deng M, Yeung DK, Yuan J

OBJECTIVE: Bilateral oophorectomy leads to reduced bone mineral density (BMD), and reduced BMD is associated with increased marrow fat and reduced marrow perfusion. Purpose of this study was to investigate...
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Attenuation-Based Automatic Kilovoltage Selection and Sinogram-Affirmed Iterative Reconstruction: Effects on Radiation Exposure and Image Quality of Portal-Phase Liver CT

Song JS, Choi EJ, Kim EY, Kwak HS, Han YM

OBJECTIVE: To compare the radiation dose and image quality between standard-dose CT and a low-dose CT obtained with the combined use of an attenuation-based automatic kilovoltage (kV) selection tool (CARE...
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Current Status of Optical Imaging for Evaluating Lymph Nodes and Lymphatic System

Lee ES, Kim TS, Kim SK

Optical imaging techniques use visual and near infrared rays. Despite their considerably poor penetration depth, they are widely used due to their safe and intuitive properties and potential for intraoperative...
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Evaluation of a Chest Circumference-Adapted Protocol for Low-Dose 128-Slice Coronary CT Angiography with Prospective Electrocardiogram Triggering

Lu C, Wang Z, Ji J, Wang H, Hu X, Chen C

OBJECTIVE: To assess the effect of chest circumference-adapted scanning protocol on radiation exposure and image quality in patients undergoing prospective electrocardiogram (ECG)-triggered coronary CT angiography (CCTA). MATERIALS AND METHODS: One hundred-eighty-five...
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Quantitative Analysis of the Effect of Iterative Reconstruction Using a Phantom: Determining the Appropriate Blending Percentage

Kim HG, Chung YE, Lee YH, Choi JY, Park MS, Kim MJ, Kim KW

PURPOSE: To investigate the optimal blending percentage of adaptive statistical iterative reconstruction (ASIR) in a reduced radiation dose while preserving a degree of image quality and texture that is similar...
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Differentiation between Focal Malignant Marrow-Replacing Lesions and Benign Red Marrow Deposition of the Spine with T2*-Corrected Fat-Signal Fraction Map Using a Three-Echo Volume Interpolated Breath-Hold Gradient Echo Dixon Sequence

Kim YP, Kannengiesser S, Paek MY, Kim S, Chung TS, Yoo YH, Yoon CS, Song HT, Lee YH, Suh JS

OBJECTIVE: To assess the feasibility of T2*-corrected fat-signal fraction (FF) map by using the three-echo volume interpolated breath-hold gradient echo (VIBE) Dixon sequence to differentiate between malignant marrow-replacing lesions and...
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Comparison of Image Quality of Shoulder CT Arthrography Conducted Using 120 kVp and 140 kVp Protocols

Ahn SJ, Hong SH, Chai JW, Choi JY, Yoo HJ, Kim SH, Kang HS

OBJECTIVE: To compare the image quality of shoulder CT arthrography performed using 120 kVp and 140 kVp protocols. MATERIALS AND METHODS: Fifty-four CT examinations were prospectively included. CT scans were performed...
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Contrast-Enhanced Spectral Mammography: Comparison with Conventional Mammography and Histopathology in 152 Women

Luczynska , Heinze-Paluchowska S, Dyczek S, Blecharz P, Rys J, Reinfuss M

OBJECTIVE: The goal of the study was to compare conventional mammography (MG) and contrast-enhanced spectral mammography (CESM) in preoperative women. MATERIALS AND METHODS: The study was approved by the local Ethics...
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Contrast-Enhanced Ultrasound Defines Vascularization Pattern of Hamartomatous Colonic Polyps in Peutz-Jeghers Syndrome

Badea R, Ciobanu L, Botan E, Pojoga C, Tantau M

The hamartomatous polyps in Peutz-Jeghers syndrome may have malignant potential. To differentiate between hamartomatous and adenomas polyps, vascular characterization can be assessed using noninvasive procedures, such as contrast-enhanced ultrasound (CEUS)....
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Perfusion Magnetic Resonance Imaging: A Comprehensive Update on Principles and Techniques

Jahng GH, Li KL, Ostergaard L, Calamante

Perfusion is a fundamental biological function that refers to the delivery of oxygen and nutrients to tissue by means of blood flow. Perfusion MRI is sensitive to microvasculature and has...
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Diagnostic Efficacy of Contrast-Enhanced Ultrasound for Small Renal Masses

Oh TH, Lee YH, Seo IY

PURPOSE: Ultrasound (US) is highly sensitive in the detection of renal masses. However, it may not be able to differentiate benign and malignant lesions in smaller masses. The purpose of...
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Readout-Segmented Echo-Planar Imaging in Diffusion-Weighted MR Imaging in Breast Cancer: Comparison with Single-Shot Echo-Planar Imaging in Image Quality

Kim YJ, Kim SH, Kang BJ, Park CS, Kim HS, Son YH, Porter DA, Song BJ

OBJECTIVE: The purpose of this study was to compare the image quality of standard single-shot echo-planar imaging (ss-EPI) and that of readout-segmented EPI (rs-EPI) in patients with breast cancer. MATERIALS AND...
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Prediction of infarct severity from triiodothyronine levels in patients with ST-elevation myocardial infarction

Kim DH, Choi DH, Kim HW, Choi SW, Kim BB, Chung JW, Koh YY, Chang KS, Hong SP

  • KMID: 2070109
  • Korean J Intern Med.
  • 2014 Jul;29(4):454-465.
BACKGROUND/AIMS: The aim of the present study was to evaluate the relationship between thyroid hormone levels and infarct severity in patients with ST-elevation myocardial infarction (STEMI). METHODS: We retrospectively reviewed thyroid...
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Recurrence of Multiple Focal Nodular Hyperplasia in a Young Male Patient

Chung E, Park CH, Kim J, Han NI, Lee YS, Choi HJ, Bae SH, Park IY

Focal nodular hyperplasia (FNH) is the second most common benign hepatic tumor that is usually found in women. Diagnosis of FNH mainly depends on imaging studies such as color Doppler...
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Periosteal Osteosarcoma Arising from the Rib and Scapula: Imaging Features in Two Cases

Hong JB, Cho KH, Choi JH

Periosteal osteosarcoma is an extremely rare chondroblastic osteosarcoma in the flat bone. There were authors reporting of two cases of periosteal osteosarcoma in the highly unusual sites. One of them...
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Histogram Analysis of Hepatobiliary Phase MR Imaging as a Quantitative Value for Liver Cirrhosis: Preliminary Observations

Choi JY, Kim H, Sun M, Sirlin CB

PURPOSE: To investigate whether histogram analysis of the hepatobiliary phase on gadoxetate enhanced-MRI could be used as a quantitative index for determination of liver cirrhosis. MATERIALS AND METHODS: A total of...
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Clinically Useful Diagnostic Tool of Contrast Enhanced Ultrasonography for Focal Liver Masses: Comparison to Computed Tomography and Magnetic Resonance Imaging

Ryu SW, Bok GH, Jang JY, Jeong SW, Ham NS, Kim JH, Park EJ, Kim JN, Lee WC, Shim KY, Lee SH, Kim SG, Cha SW, Kim YS, Cho YD, Kim HS, Kim BS

  • KMID: 1774563
  • Gut Liver.
  • 2014 May;8(3):292-297.
BACKGROUND/AIMS: To evaluate the diagnostic value of contrast (SonoVue(R)) enhancement ultrasonography (CEUS) and to compare this method with computed tomography (CT) and magnetic resonance imaging (MRI) in evaluating liver masses. METHODS:...
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Differentiating between Adenomyomatosis and Gallbladder Cancer: Revisiting a Comparative Study of High-Resolution Ultrasound, Multidetector CT, and MR Imaging

Bang SH, Lee JY, Woo H, Joo I, Lee ES, Han JK, Choi BI

OBJECTIVE: To compare the diagnostic performance of high-resolution ultrasound (HRUS) with contrast-enhanced CT and contrast-enhanced magnetic resonance imaging (MRI) with MR cholangiopancreatography (MRCP) to differentiate between adenomyomatosis (ADM) and gallbladder...
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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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Radiofrequency ablation of very-early-stage hepatocellular carcinoma inconspicuous on fusion imaging with B-mode US: value of fusion imaging with contrast-enhanced US

Min JH, Lim HK, Lim S, Kang TW, Song KD, Choi SY, Rhim H, Lee MW

BACKGROUND/AIMS: To determine the value of fusion imaging with contrast-enhanced ultrasonography (CEUS) and computed tomography (CT)/magnetic resonance (MR) images for percutaneous radiofrequency ablation (RFA) of very-early-stage hepatocellular carcinomas (HCCs) that...
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