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Low-Dose Abdominal CT Using a Deep Learning-Based Denoising Algorithm: A Comparison with CT Reconstructed with Filtered Back Projection or Iterative Reconstruction Algorithm

Shin YJ, Chang W, Ye JC, Kang E, Oh DY, Lee YJ, Park JH, Kim YH

OBJECTIVE: To compare the image quality of low-dose (LD) computed tomography (CT) obtained using a deep learning-based denoising algorithm (DLA) with LD CT images reconstructed with a filtered back projection...
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The Diagnostic Utility of Prone Position Chest CT for the Evaluation of Esophageal Cancer

Lee JE, Kim YH, Shin HH, Jeong WG, Na KJ

The aim of this study was to assess the potential of a prone chest CT for the evaluation of esophageal cancer, as compared with a routine supine chest CT. 69...
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Lung Cancer Screening with Low-Dose CT: Current Status in Other Countries

Goo JM

Lung cancer is the leading cause of death from cancer worldwide. The most effective way to reduce lung cancer mortality is early detection and treatment. Two large randomized controlled trials...
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Preface for Special Issue on Update of Lung Cancer Screening with Low-Dose CT

Goo JM

No abstract available.
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Usefulness of a saline chaser to reduce contrast material dose in abdominal CT of normal dogs

Kim H, Hong S, Kim S, Oh D, Lee S, Choen S, Yoon J, Choi M

Use of a saline chaser has been reported to allow reduction of contrast dose and artifacts during computed tomography (CT) examination in humans. This study assesses the extent of contrast...
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Incidental Breast Lesions on Chest CT: Clinical Significance and Differential Features Requiring Referral

Choi YJ, Kim TH, Cha YJ, Son EJ, Gweon HM, Park CH

PURPOSE: To evaluate the CT features of incidental breast lesions on chest CT and to suggest useful criteria for referral to a specialized breast unit. MATERIALS AND METHODS: Between May 2009...
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Clinical Characteristics of False-Positive Lymph Node on Chest CT or PET-CT Confirmed by Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration in Lung Cancer

Lee J, Kim YK, Seo YY, Choi EK, Lee DS, Kim YS, Hong SH, Kang JH, Lee KY, Park JK, Sung SW, Kim HB, Park MS, Yim HW, Kim SJ

BACKGROUND: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a standard procedure to evaluate suspicious lymph node involvement of lung cancer because computed tomography (CT) and 18F-fluorodeoxyglucose positron emission tomography-CT (PET-CT)...
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Contrast-Enhanced CT with Knowledge-Based Iterative Model Reconstruction for the Evaluation of Parotid Gland Tumors: A Feasibility Study

Park CJ, Kim KW, Lee HJ, Kim MJ, Kim J

OBJECTIVE: The purpose of this study was to determine the diagnostic utility of low-dose CT with knowledge-based iterative model reconstruction (IMR) for the evaluation of parotid gland tumors. MATERIALS AND METHODS:...
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Effect of Hybrid Kernel and Iterative Reconstruction on Objective and Subjective Analysis of Lung Nodule Calcification in Low-Dose Chest CT

Hong SG, Kang EJ, Park JH, Choi WJ, Lee KN, Kwon HJ, Ha DH, Kim DW, Kim SH, Jo JH, Lee J

OBJECTIVE: To evaluate the differences in subjective calcification detection rates and objective calcium volumes in lung nodules according to different reconstruction methods using hybrid kernel (FC13-H) and iterative reconstruction (IR). MATERIALS...
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Lung Cancer Screening with Low-Dose CT in Female Never Smokers: Retrospective Cohort Study with Long-term National Data Follow-up

Kim HY, Jung KW, Lim KY, Lee SH, Jun JK, Kim J, Hwangbo B, Lee JS

PURPOSE: Because of growing concerns about lung cancer in female never smokers, chest low-dose computed tomography (LDCT) screening is often performed although it has never shown clinical benefits. We examinewhether...
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Dynamic Contrast-Enhanced CT Findings of a Extrapleural Solitary Fibrous Tumor in the Spleen: A Case Report and Literature Review

Kim TK, Han HY, Kim JH

Extrapleural solitary fibrous tumor, formerly referred to as “hemangiopericytoma” is a rare soft tissue vascular tumor which has elevated malignancy potential arising from the capillary pericytes. Extrapleural solitary fibrous tumors,...
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The Diagnostic Usefulness of Ultrasound-Guided Peritoneal Biopsy for the Solitary Peritoneal Thickening of an Unknown Cause Visualized as Only Infiltrated Fat Tissue on a CT Scan

Chu YJ, Ryeom H, Lee SY, Kim GC, Cho SH, Lee J, Kim TH, Song JH

PURPOSE: To assess the usefulness of an ultrasound (US)-guided peritoneal biopsy for the solitary peritoneal thickening visualized as only infiltrated fat on a computed tomography (CT) scan. MATERIALS AND METHODS: This...
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Quantitative Image Quality and Histogram-Based Evaluations of an Iterative Reconstruction Algorithm at Low-to-Ultralow Radiation Dose Levels: A Phantom Study in Chest CT

Lee KB, Goo HW

OBJECTIVE: To describe the quantitative image quality and histogram-based evaluation of an iterative reconstruction (IR) algorithm in chest computed tomography (CT) scans at low-to-ultralow CT radiation dose levels. MATERIALS AND METHODS:...
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A Survey of Institutions with Sixteen Detector-Rows or More CT Scanners for the Introduction of National Lung Cancer Screening Program Using Low-Dose Chest CT

Oh JG, Paik SH, Kim BS, Lee JM, Goo JM

PURPOSE: To survey medical institutions in Korea that conduct chest low-dose computed tomography (LDCT) scan prior to introduction of the national lung cancer screening (LCS) project. MATERIALS AND METHODS: From July-October...
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Windows Setting for Low kVp Abdominal CT: Comparison to 120-kVp CT Images

Kim JS, Choi JI, Choi MH, Park MY, Rha SE, Oh SN, Jung SE, Byun JY

PURPOSE: The purpose of the study is to identify the optimal window level (WL) and window width (WW) to maximize visualization of the findings for low kVp abdominal CT images...
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Central Image Archiving and Management System for Multicenter Clinical Studies: Lessons from Low-dose CT for Appendicitis Trial

Ko Y, Choi JW, Kim DH, Lee KJ, Shin SS, Woo JY, Cho SW, Kim BS, Lee KH, LOCAT Group

This special report aimed to document our experiences in implementing the Central Imaging Archiving and Management System (CIAMS) for a multicenter clinical trial, Low-dose CT for Appendicitis Trial (LOCAT), supported...
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Detection of Breast Abnormalities on Enhanced Chest CT: Correlation with Breast Composition on Mammography

Cho EM, Kang H, Shin YG, Yun JH, Oh KS, Park S

PURPOSE: To investigate the capability of enhanced chest computed tomography (CT) for detecting breast abnormalities and to assess the influence of breast composition on this detectability. MATERIALS AND METHODS: From 2000...
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Evaluation of Adverse Events and Imaging Quality in Contrast-Enhanced Abdominal CT Using Generic CT Contrast Developed in South Korea: A Multicenter Prospective Observational Study

Kim YS, Jung SE, Lee SR, Hwang SS, Lim YS, Park J, Park MY, Rha SE

PURPOSE: The purpose of this study is to evaluate the clinical safety and usefulness of the Prosure®300 in contrast-enhanced abdominal CT. MATERIALS AND METHODS: This prospective study was approved by our...
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Pulmonary Embolism Overlooked on Chest CT Under the Application of the American College of Radiology Appropriateness Criteria

Choi J, Lee BY, Han DH, Jung JI

PURPOSE: We retrospectively estimated the frequency and clinical significance of pulmonary embolism (PE) that would have been missed on chest CT scans if the American College of Radiology (ACR) appropriateness...
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Evaluation of Semi-automatic Segmentation Methods for Persistent Ground Glass Nodules on Thin-Section CT Scans

Kim YJ, Lee SH, Park CM, Kim KG

OBJECTIVES: This work was a comparative study that aimed to find a proper method for accurately segmenting persistent ground glass nodules (GGN) in thin-section computed tomography (CT) images after detecting...
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