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Diagnostic Value of Advanced Metal Artifact Reduction Magnetic Resonance Imaging for Periprosthetic Joint Infection
Conclusions The findings suggesting PJI were capsular thickening, soft-tissue fluid collection, soft-tissue edema, pericapsular edema, and joint effusion. The combinations of them highly suggested PJI. Regarding the BME pattern, the combination with soft-tissue edema raised the possibility of PJI. This study aimed to evaluate the diagnostic value of magnetic resonance imaging with multiacquisition variable–resonance image combination selective for periprosthetic joint infection (PJI). (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Spinal MRI-Based Radiomics Analysis to Predict Treatment Response in Multiple Myeloma
Conclusions Nomograms incorporating a magnetic resonance imaging–based radiomic signature and ISS stage help predict the response to chemotherapy for MM and can be useful in clinical decision-making. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Comparative Analysis of Subtalar Ligaments Between Patients With Talocalcaneal Coalition and Control Subjects Using 3-Dimensional Magnetic Resonance Imaging
Purpose The purpose of this study was to find the differences in the subtalar ligaments between patients with talocalcaneal (TC) coalition and control subjects using 3-dimensional isotropic magnetic resonance imaging. Methods Magnetic resonance imaging of 27 ankles with TC coalition and 27 age- and sex-matched controls were retrospectively reviewed. Absence of cervical ligament, anterior capsular ligament (ACL), interosseous TC ligament (ITCL), and partial or complete absence of 3 roots of the inferior extensor retinaculum was analyzed. Thickness and width of ACL and ITCL were measured when possible. Results ...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Imaging Findings of Calcaneal Cyst and Lipoma: Can Intraosseous Cyst Changes Into Lipoma With Advancing Age?
This study evaluates computed tomography (CT) and magnetic resonance imaging (MRI) findings of calcaneal cysts and lipomas in pediatric and adult populations. Methods Forty-six patients with bone lesions located in the anterior portion of the calcaneus beneath the talocalcaneal joint, who underwent CT and/or MRI, were enrolled in this study. The imaging characteristics were retrospectively reviewed and compared between the pediatric (aged 18 years or younger; n = 29) and adult (aged 19 years or older; n = 17) groups. Results On CT images, water/soft tissue attenuation alone was more frequent in the pediatric ...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

An Analytic Method for Calculating Scanner-, Kilovoltage Peak–, and Patient Size–Specific Hounsfield Unit Scale Thresholds for Agatston Score
Conclusions Our results show a potential to enable accurate determination of AgSc under diverse conditions (eg, reduced tube potential) and are more easily applicable to different patient sizes than the phantom calibration method. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: CT: Technology and Physics Source Type: research

Deep Learning–Based Automatic CT Quantification of Coronavirus Disease 2019 Pneumonia: An International Collaborative Study
Conclusions Automatically quantified CT extent and weight of COVID-19 pneumonia were well correlated with human-derived references and independently associated with symptoms and prognosis in multinational external data sets. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Chest Imaging Source Type: research

Volumetric Analysis of Intravoxel Incoherent Motion Diffusion-Weighted Imaging for Predicting the Response to Chemotherapy in Patients With Locally Advanced Non–Small Cell Lung Cancer
Objective We aimed to prospectively investigate intravoxel incoherent motion parameters to predict the response to chemotherapy in locally advanced non–small cell lung cancer (NSCLC) patients. Methods From July 2016 to March 2018, 30 advanced NSCLC patients were enrolled and underwent chest intravoxel incoherent motion–diffusion-weighted imaging at Siemens 3T magnetic resonance imaging before and at the end of the first cycle of chemotherapy. Regions of interest were drawn including the whole tumor volume to derive the apparent diffusion coefficient value, D, D*, and f, respectively. Time-dependent receiver ...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Chest Imaging Source Type: research

Effect of the Coronary Arterial Diameter Derived From Coronary Computed Tomography Angiography on Fractional Flow Reserve
In this study, we explored the effect of the coronary arterial diameter derived from coronary computed tomography angiography on FFR. Method We retrospectively reviewed the clinical information of 131 patients with moderate coronary artery stenosis. To compare the mean diameter of stenotic vessels, patients were divided into ischemic and nonischemic groups. According to the clinical statistics of the diameter of the ischemic group and the nonischemic group, we established 8 ideal models of coronary artery diameter of 4 mm (40%, 50%, 60%, and 70% stenosis) and diameter of 3 mm (40%, 50%, 60%, and 70% stenosis). Two s...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Cardiovascular: Angiography Source Type: research

The Aortic Ductus Diverticulum—Innocent Bystander or Potential Source of Thromboembolic Stroke?
Conclusions In the present study, ADDs were not significantly associated with ischemic brain alterations. Therefore, ADDs seem to be an innocent bystander with respect to the pathogenesis of ischemic brain alterations. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Cardiovascular: Angiography Source Type: research

Imaging Features Derived From Dynamic Contrast-Enhanced Magnetic Resonance Imaging to Differentiate Malignant From Benign Breast Lesions: A Systematic Review and Meta-Analysis
Materials and Methods The PubMed, Web of Science, Embase, and the Cochrane Library databases were searched up to January 2021 to identify original studies that investigated the accuracy of individual DCE-MRI features in differentiating malignant from benign breast lesions. Pooled sensitivity, specificity, and area under the curve were calculated by STATA software based on the data extracted from included studies. Moreover, quality assessment, subgroup analysis, and publication bias evaluation were performed. Results Twenty-nine studies comprising 2976 patients and 3365 suspicious breast lesions were included. Ma...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Breast Imaging Source Type: research

A Modified Bowel Displacement Technique for Magnetic Resonance Imaging–Guided Focused Ultrasound Surgery in the Treatment of Uterine Fibroids and Adenomyosis
Conclusions The modified bowel displacement technique was effective in displacing interposed bowels during MRgFUS treatment to create safe acoustic pathway for ablating uterine fibroids and adenomyosis. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Gynecologic Source Type: research

Radiogenomics: A Valuable Tool for the Clinical Assessment and Research of Ovarian Cancer
A new interdisciplinary approach based on medical imaging phenotypes, gene expression patterns, and clinical parameters, referred to as radiogenomics, has recently been developed for biomarker identification and clinical risk stratification in oncology, including for the assessment of ovarian cancer. Some radiological phenotypes (implant distribution, lymphadenopathy, and texture-derived features) are related to specific genetic landscapes (BRCA, BRAF, SULF1, the Classification of Ovarian Cancer), and integrated models can improve the efficiency for predicting clinical outcomes. The establishment of databases in medical im...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Gynecologic Source Type: research

Cystic Lesions of the Pancreas: Is Apparent Diffusion Coefficient Value Useful at 3 T Magnetic Resonance Imaging?
The objective of this study is to determine the role of apparent diffusion coefficient (ADC) value at 3T magnetic resonance imaging (MRI) in the characterization of pancreatic cystic lesions. Methods We retrospectively selected a total number of 223 patients with a conclusive diagnosis of pancreatic cystic lesion, previously undergoing MR examination on a 3 T system. The MRI protocol first included axial T1/T2-weighted sequences and magnetic resonance cholangiopancreatography. Diffusion-weighted MRI was performed using a spin-echo echo-planar sequence with multiple b values (0, 150, 500, 1000, and 1500 s/mm2) in all...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Gastrointestinal Source Type: research

Computed Tomography Imaging of Iatrogenic Esophageal Injuries
Knowledge of iatrogenic esophageal injuries is important given the variety of etiologies, including medical instrumentation (eg, endoscopes), radiotherapy, and anticoagulation. The clinical presentation and imaging findings of esophageal injuries depend on the mechanism and location of the injury. Imaging modalities commonly used for the evaluation of esophageal injuries include esophagram and computed tomography. Esophageal injuries should be considered in patients with acute chest symptoms. Recognizing an unsuspected esophageal injury on imaging can be critical to reaching the correct diagnosis given their nonspecific sy...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Gastrointestinal Source Type: research

Usefulness of Computed Tomography Angiography in the Preoperative Workup of Patients With Colorectal Cancer
Conclusions Preoperative Multidetector Computed Tomography angiography can define the pattern of IMA branching. Based on this information, a low ligation can be performed in tumors located in sigmoid colon and rectosigmoid junction with IMA branching types A and B. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Gastrointestinal Source Type: research