Iterative Ring Artifact Removal Method for Helical Computed Tomography Scans
Conclusions This statistical correction method efficiently detects and corrects false pixel values in the projection data without causing new artifacts in the reconstructed image. The algorithm is less sensitive to its parameters. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: TECHNICAL NOTE Source Type: research

Further Improving Image Quality of Cardiovascular Computed Tomography Angiography for Children With High Heart Rates Using Second-Generation Motion Correction Algorithm
Conclusions A second-generation, whole-heart motion correction algorithm further significantly improves cardiac image quality beyond the coronaries in CCTA for pediatric patients with high heart rates. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: CARDIAC IMAGING Source Type: research

Left Atrial Function Determined by Cardiac Computed Tomography Predicts Device-Detected Atrial High-Rate Episodes in Patients Treated With Cardiac Resynchronization Therapy
Conclusions In patients with CRT, low preimplant LAEF measured by cardiac CT was independently associated with device-detected AHRE. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: CARDIAC IMAGING Source Type: research

Computed Tomography Findings in Vernix Caseosa Peritonitis
Conclusions Vernix caseosa peritonitis is an underrecognized disorder that is most often mistaken for other more common causes of peritonitis. In the setting of peripartum peritonitis, the CT findings of ascites with multiple small, well-defined, peripherally enhancing, cystic peritoneal nodules, especially adjacent to the liver, which grow in size and number strongly suggests VCP. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Novel Dual-Energy Computed Tomography Enterography Iodine Density Maps Provide Unique Depiction of Crohn Disease Activity
Objective To create a map of iodine densities within affected segments of small-bowel Crohn disease (CD) derived from contrast-enhanced dual-energy computed tomography enterography (DECTE) studies. Methods Twenty CD patients imaged with intravenous contrast-enhanced DECTE between June 2016 and December 2017 were retrospectively identified. Ten patients without clinical evidence of CD and 8 normal-appearing jejunal segments in CD patients were controls. Using prototype software, 8 manual contours were drawn along the mucosa of affected segments. Relatively normal-appearing bowel was included at the edges. These contour...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

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 images were manually segmented, and texture analysis of the segmented tumors was performed. Texture analysis results of benign ...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

The Effect of Rectal Distention on the Intravoxel Incoherent Motion Parameters: Using Sonography Transmission Gel
Conclusions Intraluminal distension can increase the repeatability of IVIM parameters and the value of IVIM. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

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 and the conventional imaging features of the lymph nodes were measured and analyzed. Mann-Whitney test and χ2 test...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Computed Tomography Thermography for Ablation Zone Prediction in Microwave Ablation and Cryoablation: Advantages and Challenges in an Ex Vivo Porcine Liver Model
Conclusions Our experiments reveal several difficulties in predicting ablation zone temperature from CT attenuation. Microwave ablation leads to gas production in the tissue, which degrades the accuracy of noninvasive temperature measurement, especially at higher temperatures. In CA, CT thermometry is limited by ice ball formation, which leads to homogeneous attenuation, nearly independent of temperature. Further research is needed to define the role of CT thermography in ablation zone monitoring in liver malignancies. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

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 using the logistic regression model. Results Patients with M1 subtype had the shortest median overall survival (P median,...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Enhanced Computed Tomography–Based Radiomics Signature Combined With Clinical Features in Evaluating Nuclear Grading of Renal Clear Cell Carcinoma
Conclusions It is feasible to evaluate the nuclear grading of ccRCC based on enhanced CT radiomics signature combined with clinical features. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

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 cancers optimizes management and treatment plan, including degree of surgical intervention. In this article, we review the ...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Assessment of Cerebral Collateral Flow With Single-Phase Computed Tomography Angiography–Based Multimodal Scales in Patients With Acute Ischemic Stroke
Conclusion The single-phase CTA-based visual collateral score scale and regional leptomeningeal score scale can be used as the imaging evidence for the evaluation of collateral flow in AIS patients in the majority of grassroots hospitals where DSA is difficult to carry out. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: NEURORADIOLOGY Source Type: research

Association Between Incomplete Partition Type III and Abnormal Hypothalamic Morphology: Further Imaging Evidence
Conclusions This retrospective analysis presents further magnetic resonance imaging evidence on the association between the rare IP-III malformations and the presence of hypothalamic morphologic abnormalities. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: NEURORADIOLOGY Source Type: research

Evaluation of Intradural Ecchordosis Physaliphora With Three-Dimensional Fluid-Attenuated Inversion Recovery
This study evaluated the efficacy of 3-dimensional fluid-attenuated inversion recovery (3D FLAIR) for detecting intradural ecchordosis physaliphora (EP). Methods We retrospectively determined the presence or absence of intradural EP on 3D FLAIR for 3888 consecutive patients, classifying the EP as “classical” or “possible” and analyzing the prevalence, size, and presence or absence of an intraosseous stalk. Where available, magnetic resonance cisternography images were compared with the 3D FLAIR images. Results Intradural EP was identified in 50 patients (1.3%): 36 (0.9%) classical and 14 (0.4%...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: NEURORADIOLOGY Source Type: research

Conventional and Advanced Magnetic Resonance Imaging Features of Supratentorial Extraventricular Ependymomas
Conclusions A large lesion with relatively well-defined margins, heterogeneous solid cystic appearance, extending from the pial surface to the ventricular margin, presence of calcification, and ADC values approaching those of white matter should raise a suspicion of supratentorial ependymoma. High ITSS, MR perfusion parameters, and magnetic resonance spectroscopy characteristics are similar to those of other high-grade gliomas. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: NEURORADIOLOGY Source Type: research

Head Ultrasound Resistive Indices Are Associated With Brain Injury on Diffusion Tensor Imaging Magnetic Resonance Imaging in Neonates With Hypoxic-Ischemic Encephalopathy
Conclusions Low RI correlated with worse brain injury on diffusion tensor imaging and may serve as an early marker of brain injury in cooled HIE neonates. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: NEURORADIOLOGY Source Type: research

Computed Tomography Angiography–Based Pulmonary Artery Volumetry as a Diagnostic Tool for Pulmonary Hypertension
Conclusions Volumetric analysis of the proximal pulmonary arteries using CTPA is a promising diagnostic tool for PH in a real-world cohort. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: THORACIC IMAGING Source Type: research

Evaluation of Image Quality for 7 Iterative Reconstruction Algorithms in Chest Computed Tomography Imaging: A Phantom Study
This study aimed to evaluate the image quality of 7 iterative reconstruction (IR) algorithms in comparison to filtered back-projection (FBP) algorithm. Methods An anthropomorphic chest phantom was scanned on 4 computed tomography scanners and reconstructed with FBP and IR algorithms. Image quality of anatomical details—large/medium-sized pulmonary vessels, small pulmonary vessels, thoracic wall, and small and large lesions—was scored. Furthermore, general impression of noise, image contrast, and artifacts were evaluated. Visual grading regression was used to analyze the data. Standard deviations were measure...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: THORACIC IMAGING Source Type: research

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
Conclusions Although prevalence DPO on HRCT varies between some forms of ILD, the use of DPO to influence characterization of ILD should be considered with caution. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: THORACIC IMAGING Source Type: research

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, peripheral and diffuse), and zonal distribution (upper, middle, and lower zones). Complications in the form of acute infection...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: THORACIC IMAGING Source Type: research

Cardiothoracic Complications of Immune Checkpoint Inhibitor Therapy: An Imaging Review
This article specifically highlights imaging manifestations of the most common cardiothoracic toxicities of these agents, including pneumonitis, sarcoid-like granulomatosis and lymphadenopathy, and myocarditis. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: THORACIC IMAGING Source Type: research

Initial Results of the Use of a Standardized Diagnostic Criteria for Chest Computed Tomography Findings in Coronavirus Disease 2019
Conclusions Chest CT standardized diagnostic criteria had high specificity and positive predictive value for the diagnosis of COVID-19 when presenting a typical appearance. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: THORACIC IMAGING Source Type: research

Computed Tomography Radiomics Can Predict Disease Severity and Outcome in Coronavirus Disease 2019 Pneumonia
Conclusions Radiomics from noncontrast CT reliably predict disease severity (AUC, 0.99) and outcome (AUC, 0.85) in patients with COVID-19 pneumonia. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: THORACIC IMAGING Source Type: research

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 using Student t test, Mann-Whitney U, and Fisher exact tests. Results In the ICU (+) and died groups, crazy paving (64% an...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: THORACIC IMAGING Source Type: research

Predictive Computed Tomography and Clinical Features for Diagnosis of COVID-19 Pneumonia: Compared With Common Viral Pneumonia
Objective To determine the predictive computed tomography (CT) and clinical features for diagnosis of COVID-19 pneumonia. Methods The CT and clinical data including were analyzed using univariate analysis and multinomial logistic regression, followed by receiver operating characteristic curve analysis. Results The factors including size of ground grass opacity (GGO), GGO with reticular and/or interlobular septal thickening, vascular enlargement, “tree-in-bud” opacity, centrilobular nodules, and stuffy or runny nose were associated with the 2 groups of viral pneumonia, as determined by univariate analysi...
Source: Journal of Computer Assisted Tomography - September 1, 2020 Category: Radiology Tags: THORACIC IMAGING Source Type: research

Clinical, Imaging Findings, Responses, and Outcomes of Patients With Classical Hodgkin Lymphoma and Non-Hodgkin Lymphoma Undergoing Immune Checkpoint Inhibitor Therapy: A Single-Institution Experience
Conclusions This single-institution observational study demonstrated that overall response rate was higher in patients with cHL undergoing ICI. Immune checkpoint inhibitor therapy has unique response patterns and toxicities in both cHL and NHL patients that radiologists should keep in mind. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: WHOLE BODY IMAGING Source Type: research

Protocol Optimization and Implementation of Dual-Energy and Dual-Source Computed Tomography in Clinical Practice: Field of View, Speed, or Material Separation?
Clinical use of dual-energy computed tomography (DECT) and dual-source computed tomography (DSCT) has been well established for more than a decade. Improved software and decreased postprocessing time have increased the advantages and availability of DECT and DSCT imaging. In this article, we will provide a practical guide for implementation of DECT and DSCT in clinical practice and discuss automated processing and selection of CT protocols in neurologic, cardiothoracic, vascular, body, and musculoskeletal imaging. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: WHOLE BODY IMAGING Source Type: research

Novel Body Composition Predictors of Outcome in Patients With Angiosarcoma of the Breast: A Preliminary Study
Conclusions Patients with breast angiosarcoma have higher metabolic activity of VAT. Higher abdominal SAT and higher BAT metabolic activity of the uninvolved breast might predict mortality. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: CARDIOTHORACIC AND BREAST IMAGING Source Type: research

Coronary Sinus Diameter to Inferior Vena Cava Diameter Ratio in the Diagnosis of Cardiac Tamponade: A Novel Approach
Conclusions The tomographic measures of both the CS diameter and the CS/IVC ratio predicted tamponade in clinically stable patients with large pericardial effusion. Compared with CS diameter, CS/IVC ratio seemed to be a more powerful predictor of tamponade. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: CARDIOTHORACIC AND BREAST IMAGING Source Type: research

Diagnostic Value of Global Cardiac Strain in Patients With Myocarditis
Background Cardiac strain represents an imaging biomarker of contractile dysfunction. Purpose The purpose of this study was to investigate the diagnostic value of cardiac strain obtained by feature-tracking cardiac magnetic resonance (MR) in acute myocarditis. Materials and Methods Cardiac MR examinations of 46 patients with myocarditis and preserved ejection fraction at acute phase and follow-up were analyzed along with cardiac MR of 46 healthy age- and sex-matched controls. Global circumferential strain and global radial strain were calculated for each examination, along with myocardial edema and late gadolinium ...
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: CARDIOTHORACIC AND BREAST IMAGING Source Type: research

Intra–Right Ventricle Course of the Coronary Arteries on Computed Tomography Angiography
Conclusions Intra-RV course of the coronaries in an adult CTA population is an infrequent anatomical variant involving LAD. It may require additional attention during interventional and surgical interventions. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: CARDIOTHORACIC AND BREAST IMAGING Source Type: research

Assessment of Severity in Chronic Thromboembolic Pulmonary Hypertension by Quantitative Parameters of Dual-Energy Computed Tomography
The objective of this study was to assess the correlation between dual-energy computed tomography quantitative parameters and hemodynamics in patients with chronic thromboembolic pulmonary hypertension. Methods Dual-energy computed tomography of 52 chronic thromboembolic pulmonary hypertension patients were evaluated retrospectively. The mean lung perfused blood volume (lung PBV) and the mean pulmonary artery (PA) enhancement measured at pulmonary parenchymal phase were compared with the hemodynamics by Spearman rank correlation coefficient (rs) and receiver operating characteristic analysis. Results Lung PBV was cor...
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: CARDIOTHORACIC AND BREAST IMAGING Source Type: research

Computed Tomography Fluoroscopy–Guided Versus Conventional Computed Tomography–Guided Lung Biopsy: A Systematic Review and Meta-analysis
This study aimed to compare the feasibility, safety, diagnostic accuracy, and radiation dose between computed tomography (CT) fluoroscopy (CTF)–guided and conventional CT (CCT)–guided lung biopsy. Methods Relevant articles up until February 2020 were identified within the PubMed, Embase, and Cochrane Library databases. Diagnostic accuracy rate, pneumothorax, and pneumothorax requiring chest tube served as primary end points, with technical success, hemoptysis, operative time, and radiation dose serving as secondary end points. Pooled odds ratios (ORs) were calculated for the dichotomous variables. Pooled est...
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: CARDIOTHORACIC AND BREAST IMAGING Source Type: research

Magnetic Resonance Imaging Findings of Crystalloid-Containing Parotid Cysts
Crystalloids are occasionally encountered on fine needle aspiration of cystic parotid lesions. This goal of this study was to retrospectively characterize the MRI features of a series benign crystalloid-containing parotid cysts. A total of 4 patients with fine needle aspiration findings of crystalloids and available parotid MRI scans were identified. Review of the imaging revealed that the cystic lesions contain layering material that corresponds to crystals. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: NEURORADIOLOGY/HEAD AND NECK IMAGING Source Type: research

Association of Aspirin and Other Nonsteroidal Anti-inflammatory Drugs With Vertebral Trabecular Bone: Data From Multiethnic Study of Atherosclerosis, a Population-Based Multicenter Cohort Study
The objective of this article was to study the association of aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs) with bone mineral density (BMD). Methods Spine BMD was evaluated in a subset of 2028 participants from the Multiethnic Study of Atherosclerosis cohort who were NSAID users (including aspirin) and underwent both lumbar and thoracic imaging. Multiethnic Study of Atherosclerosis is a prospective cohort study that includes 4 ethnic groups (white, Asian, African American, and Hispanic). Trabecular BMD was evaluated by quantitative computed tomography based on cardiac computed tomography images, which ...
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: NEURORADIOLOGY/HEAD AND NECK IMAGING Source Type: research

Is There a Coexistence of Peritemporal Wormian Bones and Congenital Aural Atresia?
In this study, the percent of wormian bones in congenital aural atresia group was higher than healthy group, when tested by the Fisher exact test, there appeared to be no significant statistical difference. However, in congenital aural atresia surgery, surgical manipulation can dislodge these bones causing injury to the surrounding structures. Therefore, the radiologists should report the presence of wormian bones in the peritemporal area. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: NEURORADIOLOGY/HEAD AND NECK IMAGING Source Type: research

Lateral Position With Gantry Tilt Further Improves Computed Tomography Image Quality Reconstructed Using Single-Energy Metal Artifact Reduction Algorithm in the Oral Cavity
Objective To assess the limitations of single-energy metal artifact reduction algorithm in the oral cavity and evaluate the availability of a solution by setting the patient in a lateral position (LP) with the use of a gantry tilt (GT). Methods We analyzed 88 patients with dental metals retrospectively in study 1, and 74 patients prospectively in study 2. Patients were classified: metal I with dental metals in 1 region, metal II in 2 regions, and metal III in 3 regions. Patients underwent neck computed tomography examinations in a supine position (SP) in study 1, and 2 positions, an LP with a GT and an SP, in study 2....
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: NEURORADIOLOGY/HEAD AND NECK IMAGING Source Type: research

Baseline Computed Tomography Radiomic and Genomic Assessment of Head and Neck Squamous Cell Carcinoma
Conclusions The CT radiomic features demonstrate correlations with FGFR1 status in HNSCC and should be further investigated for their potential to predict FGFR1 status. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: NEURORADIOLOGY/HEAD AND NECK IMAGING Source Type: research

Comparative Study Between Integrated Positron Emission Tomography/Magnetic Resonance and Positron Emission Tomography/Computed Tomography in the T and N Staging of Hypopharyngeal Cancer: An Initial Result
Conclusions The PET/MR and PET/CT provide comparable results for assessing hypopharyngeal carcinoma and detecting metastatic lymph nodes. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: NEURORADIOLOGY/HEAD AND NECK IMAGING Source Type: research

Patterns of Gray Matter Volume Alterations in Hemodialysis Patients With and Without Restless Legs Syndrome: Evidence From a Voxel-Based Morphometry Study
Purpose The purpose of this study was to investigate the differences of gray matter volume (GMV) alteration patterns between hemodialysis with restless legs syndrome (HD-RLS) and hemodialysis without restless legs syndrome (HD-nRLS) patients using voxel-based morphometry. Methods Twenty-three HD-RLS patients, 27 HD-nRLS patients, and 27 age-, sex-, and education-matched healthy controls were included in this study. One-way analysis of covariance and post hoc analyses were used to assess differences in GMV, demographics, and clinical data among the 3 groups. Pearson correlation analysis was conducted between altered GM...
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: NEURORADIOLOGY/HEAD AND NECK IMAGING Source Type: research

Neck Imaging Reporting and Data System: What Does Radiologist Want to Know?
The aim of this work was to review Neck Imaging Reporting and Data System (NI-RADS) that was designed for reporting and surveillance of head and neck cancer after therapy and their subsequent management. The categories of NI-RADS can be designated as belonging in 1 of the 4 categories: negative; low suspicion; high suspicion; and definite recurrence. Lexicon of NI-RADS-1 shows nonmass-like distortion of soft tissues, NI-RADS-2 lesions divided into mucosal (2A) versus deep (2B) abnormalities, NI-RADS-3 primary site can either be a submucosal or deep lesion, and NI-RADS-4 is a biopsy-proven residual or recurrent disease. The...
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: NEURORADIOLOGY/HEAD AND NECK IMAGING Source Type: research

Turbo Spin-Echo Diffusion-Weighted Imaging in Prostate Magnetic Resonance Imaging of Men With Pelvic Hardware
We evaluated an alternative diffusion-weighted imaging (DWI) acquisition for prostate magnetic resonance imaging of men with pelvic hardware, using radial k-space sampling (MultiVane [MV]), short-tau inversion-recovery (STIR) fat suppression, and split acquisition of turbo spin-echo signals. The optimized STIR-MV-DWI reduced metal-associated artifacts and image distortion, and aided in visualization of the prostate and lesions. The STIR-MV-DWI can be a valuable adjunct in prostate magnetic resonance imaging of men with pelvic hardware, among whom the conventional echo-planar DWI is compromised. (Source: Journal of Computer...
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Differentiation of Focal-Type Autoimmune Pancreatitis From Pancreatic Ductal Adenocarcinoma Using Radiomics Based on Multiphasic Computed Tomography
Conclusion Radiomics is helpful for a differential diagnosis of AIP in clinical practice as a noninvasive and quantitative method. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Magnetic Resonance Rectal Enema Versus Computed Tomographic Colonography in the Diagnosis of Rectosigmoid Endometriosis
This study was based on the retrospective analysis of a prospectively collected database of patients with suspicion of rectosigmoid endometriosis who underwent both MR-e and CTC, and subsequently were treated by laparoscopy. The findings of imaging techniques were compared with surgical and histological results. Results Of 90 women included in the study, 44 (48.9%) had rectosigmoid nodules and underwent bowel surgery. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy for the diagnosis of rectosigmoid endometriosis were 88.6%, 93.5%, 92.9%, 89.6%, and 91.1% for CTC, and 93.2%, 9...
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Abdominal Organs Attenuation Values and Abdominal Aortic Calcifications on Virtual and True Noncontrast Images Obtained With Third-Generation Dual-Source Dual-Energy Computed Tomography
Conclusions Abdominal VNC images obtained with third-generation dual-source dual-energy CT cannot replace TNC images without adjustment of the attenuation values. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Assessment of Tamoxifen-Related Endometrial Changes in Premenopausal Female Patients With Diffusion-Weighted Magnetic Resonance Imaging
Conclusions We concluded that DWI helps in detection and characterization of different tamoxifen-related endometrial changes in the premenopausal female patients. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Response to COVID-19: Minimizing Risks, Addressing Challenges and Maintaining Operations in a Complex Academic Radiology Department
The coronavirus disease 2019 (COVID-19) pandemic has necessitated rapid response plans to minimize risks of infection in the workforce while ensuring maintenance of essential functions of radiology departments. Plan adoption is, however, challenged by the need to coordinate with institutional efforts, a rapidly expanding number of patients, and the diversity of clinical and administrative functions in the department. Here, we describe the implementation of a response plan in an academic radiology department, challenges encountered, and tactics used to address these challenges. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: ABDOMINAL IMAGING Source Type: research

Radiology Education Amid COVID-19 Pandemic and Possible Solutions
Along with the rest of the world, the United States is inundated by the COVID-19 pandemic. The medical services in the country have been severely affected. The pandemic poses extraordinary challenges to academic institutions including radiology residency and fellowship programs. Herein, we delineate major difficulties faced by our radiology training program and mitigating countermeasures. The primary objective is to discuss the changes in our radiology training programs due to COVID-19 to allow for continued radiology education. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: RADIOLOGY EDUCATION Source Type: research

Web-based Conferencing: Tips, Tricks, and Scenario-based Best Practices for Clinicians During a Pandemic Crisis
This article will familiarize the reader with useful tools and trouble-shooting tips for web-based conferencing. Radiology-based scenarios for web conferencing are also provided. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2020 Category: Radiology Tags: RADIOLOGY EDUCATION Source Type: research