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Dual-Energy Computed Tomography for the Diagnosis of Mediastinal Lymph Node Metastasis in Lung Cancer Patients: A Preliminary Study
Conclusions Dual-energy computed tomography is a promising diagnostic approach for the diagnosis of mediastinal LN metastasis in patients with lung cancer, which may help clinicians implement personalized treatment strategies. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Thoracic Imaging Source Type: research

RSNA-STR-ACR Consensus Statement for COVID-19 CT Patterns: Interreader Agreement in 240 Consecutive Patients and Association With RT-PCR Status
Conclusions The RSNA-STR-ACR consensus statement on reporting chest CT patterns for COVID-19 presents a high interreader agreement, with the typical pattern being more frequently associated with RT-PCR–positive examinations. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Thoracic Imaging Source Type: research

Determination of Cervical Lymph Nodes Metastasis and Extra Nodal Extension Status by Quantitative Assessment of Border Irregularity and Apparent Diffusion Coefficient in Patients With Tongue Squamous Cell Carcinoma
Conclusions Quantitative SR and ADC data greatly improved diagnosis of M-cLNs and ENE, relative to visible variables alone in patients with SCCT. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Neuroimaging: Head and Neck Source Type: research

Computed Tomography Imaging Findings for Predicting Histological Subtypes and Clinical Outcomes in Patients With Head and Neck Nodal Involvement of Diffuse Large B-Cell Lymphoma and Follicular Lymphoma
This study aimed to assess computed tomography (CT) imaging findings for predicting the histological subtypes and clinical outcomes in patients with head and neck nodal involvement of diffuse large B-cell lymphoma (DLBCL) and follicular lymphoma (FL). Methods This retrospective study included 64 patients with histologically confirmed head and neck nodal lymphoma (43 with DLBCL and 21 with FL) who underwent pretreatment CT examinations. The CT imaging findings were retrospectively assessed and compared according to the 2 pathologies and their clinical outcomes. Results Multiplicity (86% vs 57%, P (Source: Jour...
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Neuroimaging: Head and Neck Source Type: research

Supratentorial Extraventricular Ependymomas: Imaging Features and the Added Value of Apparent Diffusion Coefficient
Conclusions Conventional radiological features, combined with clinical manifestations and quantitative information provided by diffusion-weighted imaging, may not only enhance the diagnosis and assist in determining prognosis but also provide a better pathophysiological understanding of intracranial ependymal tumors. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Neuroimaging: Brain Source Type: research

The Effect of Abdominal Anatomy on the Measurement of Bone Mineral Density With Dual-Energy X-Ray Absorptiometry
This study aimed to assess the effects of abdominal fat content and anatomical changes on the measurement of bone mineral density using dual-energy X-ray absorptiometry (DXA). Materials and Methods The bone mineral density measurements were performed with quantitative computed tomography for patients who underwent DXA and abdominal CT on the same day. The effects of abdominal fat content and anatomic changes on the results of DXA were assessed. Results Of the 43 patients, 88.3% were women, 11.7% were men, and the mean age was 55.6 years (range, 32–72). There was a significant relationship between the error ...
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Dual-Energy Computed Tomography Virtual Noncalcium Technique in Diagnosing Osteoporosis: Correlation With Quantitative Computed Tomography
Objective The aim of this study was to evaluate dual-energy computed tomography (CT) virtual noncalcium (VNCa) technique as a means of quantifying osteoporosis. Methods Dual-energy CT scans were obtained prospectively, targeting lumbar regions of 55 patients with chronic low back pain. A standard quantitative CT (QCT) phantom was positioned at the waist during each procedure, using proprietary software (QCT Pro; Mindways, Tex) to measure bone mineral density (BMD) in each vertebral body. Vendor dual-energy analytic software was altered with a specially modified configuration file to produce a “Virtual Non Calc...
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Magnetic Resonance Imaging Characteristics of Poroma and Porocarcinoma
Conclusions Poroma and porocarcinoma usually exhibited pedunculated solid homogeneous lesion. Intratumoral T2-hyperintense foci and T1 hyperintensity were observed in pedunculated solid lesions. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

MRI Changes of the Symphysis Pubis in Patients With Axial Spondyloarthritis and Association With Clinical Factors
Conclusions The MRI changes of the symphysis pubis were seen in 55.2% of the patients with ax-SpA and were associated with C-reactive protein, erythrocyte sedimentation rate, and symptom duration. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Clinical, Radiographic, Pathologic Characterization and Survival Outcomes of Nuclear Protein of the Testis Carcinoma
Conclusions Nuclear protein of the testis carcinoma is an aggressive disease refractory to conventional therapy. Imaging with the complementary use of computed tomography, magnetic resonance imaging, and positron emission tomography/computed tomography is important for staging, guiding management, assessing the treatment response, and surveillance. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Multisystem Source Type: research

Prediction of Patient Height and Weight With a 3-Dimensional Camera
Objective The aim of this study was to determine accuracy of height and weight prediction by a 3-dimensional (3D) camera. Methods A total of 453 patients whose computed tomography imaging used a 3D camera from December 19, 2018 to March 19, 2019 were retrospectively identified. An image of each patient was taken before the computed tomography by a 3D camera mounted to the ceiling. Using infrared imaging and machine learning algorithms, patient height and weight were estimated from this 3D camera image. A total of 363 images were used for training. The test set consisted of 90 images. The height and weight estima...
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: CT: Technology and Physics Source Type: research

Optimizing Identification of Power Injectable Ports on the Scout Images for Multidetector Computed Tomography Procedures
Conclusions Power port identification on MDCT scout images can be optimized with modification of MDCT scout acquisition and display settings based on the main port material. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: CT: Technology and Physics Source Type: research

Pulmonary Artery Size Measurements: A Comparison Study Between Electrocardiogram-Gated and Nonelectrocardiogram-Gated Computed Tomography
Conclusions The PA size was different between ECG-gated CT and non–ECG-gated CT, whereas the PA size parameters on non–ECG-gated CT could be used to predict those with ECG-gated CT, which allow for confident prediction of pulmonary hypertension and guide further surgical intervention. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Cardiovascular: Cardiac Source Type: research

Computed Tomography–Derived Fractional Flow Reserve in Patients With Chronic Coronary Syndrome: A Real-World Cohort Study
Conclusions Computed tomography–derived fractional flow reserve>0.8 conveys an excellent prognosis. Computed tomography angiography with optional FFRCT allows for the safe cancellation of invasive coronary angiography in high-risk patients. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Cardiovascular: Cardiac Source Type: research

Validation of Second-Generation Motion-Correction Software for Computed Tomography Coronary Angiography With Novel Quantitative Approach
Introduction Computed tomography of the coronary arteries (CTCA) is an important diagnostic tool. However, motion degradation is sometimes a challenge to interpretation and quantification, particularly with elevated heart rates. Here, a novel quantitative method is presented as part of an evaluation of one particular motion correction algorithm. Methods Computed tomography of the coronary arteries scans from 49 patients, with heart rates of>70 bpm, were identified with motion artifacts in multiple coronary segments. At these foci (196), an objective measure of motion degradation, defined here by cross-section ec...
Source: Journal of Computer Assisted Tomography - May 1, 2021 Category: Radiology Tags: Cardiovascular: Cardiac Source Type: research