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Τρίτη 25 Αυγούστου 2020

 

Computed Tomography Radiomics Can Predict Disease Severity and Outcome in Coronavirus Disease 2019 Pneumonia
Purpose This study aimed to assess if computed tomography (CT) radiomics can predict the severity and outcome of patients with coronavirus disease 2019 (COVID-19) pneumonia. Methods This institutional ethical board–approved study included 92 patients (mean age, 59 ± 17 years; 57 men, 35 women) with positive reverse transcription polymerase chain reaction assay for COVID-19 infection who underwent noncontrast chest CT. Two radiologists evaluated all chest CT examinations and recorded opacity...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Computed Tomography Findings in Vernix Caseosa Peritonitis
Introduction Vernix caseosa peritonitis (VCP) is a rare peripartum complication secondary to the introduction of fetal vernix into the maternal peritoneal cavity. Vernix caseosa peritonitis typically manifests a few hours to days after a cesarian section and is often initially misdiagnosed as a more common disease process resulting in delayed diagnosis. We report the computed tomography (CT) findings in 2 patients with VCP and reviewed the previously reported CT findings of VCP. Cases Two...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Conventional and Advanced Magnetic Resonance Imaging Features of Supratentorial Extraventricular Ependymomas
Objective To describe the magnetic resonance imaging characteristics of supratentorial ependymomas. Methods The magnetic resonance imaging and computed tomography imaging characteristics of 49 cases of supratentorial ependymomas were analyzed retrospectively. The location, size, degree of perilesional edema, gross appearance, computed tomography attenuation characteristics, T1 and T2 signal intensity characteristics, degree of diffusion restriction, presence of calcification, and hemorrhage...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
The Effect of Rectal Distention on the Intravoxel Incoherent Motion Parameters: Using Sonography Transmission Gel
Objective To compare the intravoxel incoherent motion (IVIM) parameters of rectal tumors before and after lumen distension obtained with sonography transmission gel. Methods Twenty-five patients were enrolled. The multiple b values of IVIM including 0, 20, 50, 100, 150, 200, 400, 600, 800, 1000, 1500, and 2000 s/mm2. Two blinded readers have drawn the region of interests and calculated the D, D*, and f values. Interobserver variability between the 2 readers was measured by intraclass correlation...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
The Role of Multiparametric Magnetic Resonance Imaging in the Study of Primary Tumor and Pelvic Lymph Node Metastasis in Stage IB1–IIA1 Cervical Cancer
Objective The aim of this study was to investigate the value of multiparametric magnetic resonance imaging (MRI) in demonstrating the metastatic potential of primary tumor and differentiating metastatic lymph nodes (MLNs) from nonmetastatic lymph nodes (non-MLNs) in stage IB1–IIA1 cervical cancer. Methods Fifty-seven stage IB1–IIA1 subjects were included. The apparent diffusion coefficient (ADC) values and dynamic contrast-enhanced MRI (DCE-MRI) parameters of primary tumors and lymph nodes...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Computed Tomography Thermography for Ablation Zone Prediction in Microwave Ablation and Cryoablation: Advantages and Challenges in an Ex Vivo Porcine Liver Model
Purpose The aim of this study was to investigate the diagnostic accuracy of computed tomography (CT) for the prediction of ablation zones from microwave ablation (MWA) and cryoablation (CA) in an ex vivo porcine liver model. Methods Sequential (30 seconds) CT scans were acquired during and after MWA and CA in an ex vivo porcine liver model. We generated 120-kVp equivalent reconstructions of generic dual-energy CT data sets, and comprehensive region-of-interest measurements were statistically...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Computed Tomography Angiography–Based Pulmonary Artery Volumetry as a Diagnostic Tool for Pulmonary Hypertension
Objectives We evaluated use of three-dimensional pulmonary artery volumes derived from computed tomography pulmonary angiography (CTPA) in a group with pulmonary hypertension (PH) compared with healthy controls as a tool for the diagnosis of PH. Methods Retrospective analysis was performed of 40 CTPA scans obtained within 90 days of right heart catheterization demonstrating PH. The CTPA scans of 40 age- and sex-matched patients without cardiopulmonary disease were used as comparison. Diameters...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Renal Cell Carcinoma: Predicting DNA Methylation Subtyping and Its Consequences on Overall Survival With Computed Tomography Imaging Characteristics
Purpose The aim of the study was to investigate associations between computed tomography (CT) imaging characteristics, DNA methylation subtyping, and overall survival in renal cell carcinomas. Methods Survival curves were calculated using the Kaplan-Meier analysis. The CT data from 212 patients generated with The Cancer Imaging Archive (TCIA) were reviewed. Identified were 70 (33.0%) M1 subtype, 17 (8.0%) M2 subtype, and 125 (59.0%) M3 subtype. Univariate and multivariate analyses were performed...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Diffuse Pulmonary Ossification on High-Resolution Computed Tomography in Idiopathic Pulmonary Fibrosis, Systemic Sclerosis-Related Interstitial Lung Disease, and Chronic Hypersensitivity Pneumonitis: A Comparative Study
Objective The aim of the study was to compare the prevalence of diffuse pulmonary ossification (DPO) in idiopathic pulmonary fibrosis (IPF), systemic sclerosis (SSc)-related interstitial lung disease (ILD), and chronic hypersensitivity pneumonitis (HP). Methods High-resolution computed tomography (HRCT) from 71 IPF, 67 SSc-ILD, and 75 HP cases were independently evaluated by 2 thoracic radiologists blinded to patient data. Studies were assessed for the presence of DPO, HRCT scanning pattern,...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Interstitial Lung Fibrosis Imaging Reporting and Data System: What Radiologist Wants to Know?
The aim of this work is to review interstitial lung fibrosis Imaging Reporting and Data System (ILF-RADS) that was designed for reporting of interstitial lung fibrosis (ILF). Findings include pulmonary and extrapulmonary findings and is subsequently designed into 4 categories. Pulmonary findings included lung volume, reticulations, traction bronchiectasis, honeycomb, nodules, cysts, ground glass, consolidation, mosaic attenuation and emphysema, and distribution of pulmonary lesions; axial (central,...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Covid-19: Correlation of Early Chest Computed Tomography Findings With the Course of Disease
Objective To investigate the role of chest computed tomography (CT) examinations acquired early after initial onset of symptoms in predicting disease course in coronavirus disease 2019. Methods Two hundred sixty-two patients were categorized according to intensive care unit (ICU) admission, survival, length of hospital stay, and reverse transcriptase-polymerase chain reaction positivity. Mean time interval between the onset of symptoms and CT scan was 5.2 ± 2.3 days. Groups were compared...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Endometrial Cancer, the Current International Federation of Gynecology and Obstetrics Staging System, and the Role of Imaging
Imaging plays a crucial role in the diagnosis, staging, and follow-up of endometrial cancer. Endometrial cancer is staged surgically using the International Federation of Gynecology and Obstetrics (FIGO) staging system. Preoperative imaging can complement surgical staging but is not yet considered a required component in the current FIGO staging system. Preoperative imaging can help identify some tumor characteristics and tumor spread, both locally and distally. More accurate assessment of endometrial...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Cardiothoracic Complications of Immune Checkpoint Inhibitor Therapy: An Imaging Review
Immune checkpoint inhibitor therapy has revolutionized the treatment of many different types of cancer. However, despite dramatic improvements in tumor oncologic response and patient outcomes, immune checkpoint blockade has been associated with multiple distinctive side-effects termed immune-related adverse events. These often have important clinical implications because these can vary in severity, sometimes even resulting in death. Therefore, it is important for both radiologists and clinicians...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Head Ultrasound Resistive Indices Are Associated With Brain Injury on Diffusion Tensor Imaging Magnetic Resonance Imaging in Neonates With Hypoxic-Ischemic Encephalopathy
Background Neonatal hypoxic-ischemic encephalopathy (HIE) is associated with dysfunctional cerebral autoregulation. Resistive index (RI) measured in the anterior cerebral artery on transfontanellar head ultrasound is a noninvasive measure of blood flow and may indicate autoregulation dysfunction. We tested whether RI was associated with brain injury on diffusion tensor imaging magnetic resonance imaging (MRI). Materials and Methods Seventy-five neonates who underwent therapeutic hypothermia...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Texture Analysis as a Radiomic Marker for Differentiating Benign From Malignant Adrenal Tumors
Objective The aim of this study was to evaluate the use of texture analysis for differentiation between benign from malignant adrenal lesions on contrast-enhanced abdominal computed tomography (CT). Methods After institutional review board approval, a retrospective analysis was performed, including an electronic search of pathology records for all biopsied adrenal lesions. Patients were included if they also had a contrast-enhanced abdominal CT in the portal venous phase. Computed tomographic...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00
Association Between Incomplete Partition Type III and Abnormal Hypothalamic Morphology: Further Imaging Evidence
Purpose Incomplete partition III (IP-III), characterized by congenital mixed or sensorineural hearing loss, is a rare genetic disease transmitted through X-linked mode of inheritance. Inner ear findings of IP-III have been well described and allow an immediate diagnosis to be made. Recently, an association between IP-III and distinct hypothalamic malformations has been reported in some of the patients with IP-III. The purpose of this study was to investigate the morphologic abnormalities of the...
Journal of Computer Assisted Tomography - Published Ahead-of-Print
Mon Aug 24, 2020 03:00

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