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CT-Based Leiden Score Outperforms Confirm Score in Predicting Major Adverse Cardiovascular Events for Diabetic Patients with Suspected Coronary Artery Disease

Liu Z, Ding Y, Dou G, Wang X, Shan D, He B, Jing J, Chen Y, Yang J

Objective: Evidence supports the efficacy of coronary computed tomography angiography (CCTA)-based risk scores in cardiovascular risk stratification of patients with suspected coronary artery disease (CAD). We aimed to compare two...
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A cone-beam computed tomography study on strategic uprighting of mandibular molars using a biocreative reverse curve system

Kim JW, Choi JY, Kim MJ, Bin X, Kim SH

Objective: To analyze the overall treatment effects in terms of the amount of uprighting with changes in the three-dimensional positions of the mandibular posterior teeth after applying the biocreative reverse...
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Assessment of pharyngeal airway in Korean adolescents according to skeletal pattern, sex, and cervical vertebral maturation: A cross-sectional CBCT study

Elagib T, Kyung HM, Hung BQ, Hong M

Objective: To investigate airway volumes using cone-beam computed tomography (CBCT) by skeletal patterns, sex, and cervical vertebral maturation (CVM) stages in Korean adolescents. Methods: The sample consisted of pretreatment CBCT...
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Solitary Fibrous Tumor of Orbit: Changes of Tumor Size and Tumor Contrast Enhancement

Choe WS, Park IK, Won KY, Shin JH

Purpose: To report a case of solitary fibrous tumor of the orbit in a patient with changes in tumor size and contrast enhancement. Case summary: A 64-year-old male patient presented with...
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Photon-Counting Detector CT: Key Points Radiologists Should Know

Esquivel A, Ferrero A, Mileto A, Baffour F, Horst K, Rajiah PS, Inoue A, Leng S, McCollough C, Fletcher JG

Photon-counting detector (PCD) CT is a new CT technology utilizing a direct conversion X-ray detector, where incident X-ray photon energies are directly recorded as electronical signals. The design of the...
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Chest multidetector computed tomography imaging of COVID-19 pneumonia patients with hematologic malignancies

El-Badrawy A, Elbadrawy N

Background Data on the association between coronavirus disease 2019 (COVID-19) and the epidemiology and outcomes of hematological malignancies are limited. Hence, the present study aimed to assess the imaging findings using...
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Influence of kilovoltage- peak and the metal artifact reduction tool in cone-beam computed tomography on the detection of bone defects around titanium-zirconia and zirconia implants

Fontenele RC, Nascimento EHL, Imbelloni-Vasconcelos AC, Martins LAC, Pontual AdA, Ramos-Perez FMM, Freitas DQ

Purpose: The aim of this study was to assess the influence of kilovoltage- peak (kVp) and the metal artifact reduction (MAR) tool on the detection of buccal and lingual peri-implant...
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CBCT-based assessment of root canal treatment using micro-CT reference images

Lamira A, Mazzi-Chaves JF, Nicolielo LFP, Leoni GB, Silva-Sousa AC, Silva-Sousa YTC, Pauwels R, Buls N, Jacobs R, Sousa-Neto MD

Purpose: This study compared the root canal anatomy between cone-beam computed tomography (CBCT) and micro-computed tomography (micro-CT) images before and after biomechanical preparation and root canal filling. Materials and Methods: Isthmus-containing...
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Correlation analysis between radiation exposure and the image quality of cone-beam computed tomography in the dental clinical environment

Song CH, Yeom HG, Kim JE, Huh KH, Yi WJ, Heo MS, Lee SS

Purpose: This study was conducted to measure the radiation exposure and image quality of various cone-beam computed tomography (CBCT) machines under common clinical conditions and to analyze the correlation between...
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Risk factors for external root resorption of maxillary second molars associated with third molars

Choi J

Purpose: This study aimed to evaluate the diagnostic performance of panoramic images compared to cone-beam computed tomography (CBCT) imaging for maxillary third molar (M3)-associated external root resorption (ERR), and to...
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Incomplete Intertrochanteric Fracture: A Pattern Analysis Using Multiplanar Reformation Computed Tomography

Kim HJ, Yoon JY, Lee S, Kim K, Yoo JJ

Background: Incomplete fractures are assumed to occur in the intertrochanteric area as fractures at other sites, but reports of incomplete intertrochanteric fractures (IIFs) are rare. In 1999, Schultz et al....
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Clinical Management and Micro-Computed Tomography Analysis of Supernumerary Teeth in Infancy: A Case Report

Na C, Lee H, Kim H, Kim J

Supernumerary teeth develop from excessive proliferation and development of the dental lamina. Supernumerary teeth can cause several problems, including ectopic eruption, delayed eruption, root resorption of adjacent teeth, and diastema....
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Retropharyngeal Ectopic Parathyroid Adenoma Localized by 18F-Fluorocholine Positron Emission Tomography/Computed Tomography: A Case Report

Jang H, Lee S, Kim D, Hong N

Ectopic parathyroid adenomas of the retropharyngeal space are relatively rare. Herein, we report a case of primary hyperparathyroidism (PHPT) secondary to a retropharyngeal parathyroid adenoma. A 22-year-old woman presented with...
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Feasibility of Single-Shot Whole Thoracic Time-Resolved MR Angiography to Evaluate Patients with Multiple Pulmonary Arteriovenous Malformations

Hong J, Lee SY, Lim JK, Lee J, Park J, Cha JG, Lee HJ, Kim D

Objective: To evaluate the feasibility of single-shot whole thoracic time-resolved MR angiography (TR-MRA) to identify the feeding arteries of pulmonary arteriovenous malformations (PAVMs) and reperfusion of the lesion after embolization...
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Residual Contrast Media in the Azygos Vein: An Uncommon Pseudolesion in Computed Tomography Coronary Angiography

Yew MS, Kaur R, Lee WL, Omar HB, Lee YS

Contrast reflux from superior vena cava into azygos system may be mistaken for pathology. We report a case occurring during CT coronary angiography (CTCA) causing diagnostic uncertainty. A linear hyperdensity anterior...
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Comparison of the Size of the Posterior Malleolar Fragment in Trimalleolar Ankle Fractures Measured Using Lateral Plain Radiography and Three-Dimensional Computed Tomography

Lee GW, Jung DM, Kwak WK, Lee KB

Purpose: This study aimed to evaluate and compare the accuracy of the size of the posterior malleolar fragment measured using lateral plain radiography and three-dimensional computed tomography (3DCT) in patients...
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Pulmonary Multinodular Epithelioid Hemangioendothelioma with Mixed Progression and Spontaneous Regression during a 7-Year Follow-Up: A Case Report and Review of Imaging Findings

Yi GY, Kim YK, Kim KC, Park HS

Pulmonary epithelioid hemangioendothelioma (PEH) is a rare vascular tumor of borderline or low-grade malignancy, and its prognosis is unpredictable. Herein, we describe the case of a 47-year-old asymptomatic female with...
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Pictorial Essay: Understanding of Persistent Left Superior Vena Cava and Its Differential Diagnosis

Jeong ER, Kang EJ, Jeun JH

Persistent left superior vena cava (PLSVC) is a rare congenital, thoracic, and vascular anomaly. Although PLSVCs generally do not have a hemodynamic effect, several types of PLSVC and some cardiac...
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Clinical Implications of Focal Mineral Deposition in the Globus Pallidus on CT and Quantitative Susceptibility Mapping of MRI

Kim H, Jang J, Kang J, Jang S, Nam Y, Choi Y, Shin Ny, Ahn KJ, Kim Bs

Objective: To assess focal mineral deposition in the globus pallidus (GP) by CT and quantitative susceptibility mapping (QSM) of MRI scans and evaluate its clinical significance, particularly cerebrovascular degeneration. Materials and...
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Atypical Manifestation of Primary Hepatocellular Carcinoma and Hepatic Malignancy Mimicking Lesions

Yoon J, Park SH, Ahn SJ, Shim YS

Hepatocellular carcinoma (HCC) can be diagnosed noninvasively on multiphasic CT and MRI based on its distinctive imaging findings. These features include arterial phase hyperenhancement and washout on portal or delayed...
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