Journal of Computer Assisted Tomography 
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This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.Reduced Chest Computed Tomography Scan Length for Patients Positive for Coronavirus Disease 2019: Dose Reduction and Impact on Diagnostic Utility
Conclusions
Limiting z-scan length of chest CTs reduced radiation dose without significantly compromising diagnostic utility in COVID-19 patients. The PREDICT demonstrated that patient-specific organ dose reductions varied from generic dose reduction based on DLP.
This work aimed to retrospectively evaluate the potential of dose reduction on chest computed tomography (CT) examinations by reducing the longitudinal scan length for patients positive for coronavirus disease 2019 (COVID-19). (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Chest Imaging Source Type: research
Opportunistic Detection of Coronary Calcium on Dual-Energy Lateral Chest Radiograph
Heart disease remains the leading cause of death among men and women in the world. The majority of cardiac morbidity worldwide is secondary to atherosclerotic coronary disease. In this article, we discuss our experience using dual exposure, dual-energy lateral chest x-ray (CXR) technique to detect coronary calcium. Similar to other reports demonstrating opportunistic detection on imaging studies, here we demonstrate the added value of detection of coronary calcium on the lateral CXR. This technique reinforces the importance of “knowing where to look” and to recognize the appearance of coronary calcium wherein subtle ca...
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Cardiovascular: Cardiac Source Type: research
Initial Investigation of Clinical Value of Noise-Optimized Virtual Monoenergetic Images Derived From Dual-Energy Computed Tomography Angiography in Preoperative Perforator Planning of Anterolateral Thigh Flap Transplantation
Objective
To objectively and subjectively assess the image characteristics of noise-optimized virtual monoenergetic images [MEI (+)] and polyenergetic images (PEIs) from dual-energy computed tomography angiography and then to explore the clinical value of the optimal MEI (+) in preoperative perforator planning of anterolateral thigh (ALT) flap transplantation.
Methods
Sixteen patients (32 thighs) who underwent lower extremity run-off dual-energy computed tomography angiography for planning ALT flap transplantation were enrolled. One standard PEI and 5 MEI (+) in 10-keV intervals (range, 40–80 keV) were reconst...
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Cardiovascular: Angiography Source Type: research
Correlating Quantitative Para-Aortic Lymph Node Computed Tomography Parameters With Fluorodeoxyglucose Positron Emission Tomography for Cervical Cancer Staging: Possible Solution for Resource Constrained Countries
Objective
The aim of the study was to determine the most accurate quantitative morphological parameters on computed tomography (CT) that correlate with fluorodeoxyglucose (FDG)-avid para-aortic nodes (PANs) in patients with cervical cancer.
Methods
A single-institution retrospective evaluation was performed of women with cervical cancer who underwent pretreatment positron emission tomography (PET)/CT and radiotherapy therapy planning CT between 2009 and 2020. A node-by-node correlation between pretreatment CT and PET/CT was performed for the reference standard of FDG avidity for short- and long-axis diameters, v...
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Gynecologic Source Type: research
Differentiation of Prostate Cancer and Stromal Hyperplasia in the Transition Zone With Monoexponential, Stretched-Exponential Diffusion-Weighted Imaging and Diffusion Kurtosis Imaging in a Reduced Number of b Values: Correlation With Whole-Mount Pathology
Objectives
The aims of the study were to explore the feasibility of generating a monoexponential model (MEM), stretched-exponential model (SEM) based diffusion-weighted imaging (DWI), and diffusion kurtosis imaging (DKI) by applying the same set of reduced b values and to compare their effectiveness in distinguishing prostate cancer from stromal hyperplasia (SH) in the transition zone (TZ) area.
Methods
An analysis of 75 patients who underwent preoperative DWI (b values of 0, 700, 1400, 2000 s/mm2) was performed. All lesions were localized on magnetic resonance images according to whole-mount histopathological c...
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Genitourinary Source Type: research
Radiologic Diagnosis and Staging of Bladder Cancer: An Update
This article reviews multimodality imaging appearances, staging, and differential diagnosis of bladder cancer. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Genitourinary Source Type: research
Comparison of Prostate Imaging and Reporting Data System V2.0 and V2.1 for Evaluation of Transition Zone Lesions: A 5-Reader 202-Patient Analysis
Conclusions
Poor interreader agreement and lack of improvement in diagnostic performance indicate an ongoing need to refine evaluation of TZ lesions. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Genitourinary Source Type: research
Differentiation of Small Hepatic Abscess From Hepatic Metastasis With a Combination of Imaging Parameters
Objective
We aimed to evaluate the diagnostic performance of the combination imaging features to differentiate small (the lesion size of 3 cm or less) hepatic abscess from metastasis.
Methods
This retrospective study included patients with preexisting malignancy and small hepatic lesions who underwent contrast-enhanced computed tomography (CT) and gadoxetic acid–enhanced magnetic resonance imaging (MRI) within 4 days between March 2017 and July 2020. Two radiologists independently evaluated the imaging features of each focal hepatic lesion. Laboratory parameters were also recorded. Significant parameters diffe...
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Gastrointestinal Source Type: research
Diagnostic Feasibility of Magnetic Resonance Elastography Radiomics Analysis for the Assessment of Hepatic Fibrosis in Patients With Nonalcoholic Fatty Liver Disease
Conclusions
Magnetic resonance elastography radiomics analysis provides diagnostic performance comparable with conventional MRE analysis for the assessment of clinically significant hepatic fibrosis in patients with NAFLD. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Gastrointestinal Source Type: research
Predicting Perceived Reporting Complexity of Abdominopelvic Computed Tomography With Deep Learning
Conclusions
There is moderate interrater agreement in radiologist-perceived reporting complexity for CT studies of the abdomen and pelvis. Automated prediction of reporting complexity in radiology studies may be a useful adjunct to radiology practice analytics. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2022 Category: Radiology Tags: Abdominopelvic Imaging: Gastrointestinal Source Type: research
Detection of Incidental Nonosseous Thoracic Pathology on State-of-the-Art Ultralow-Dose Protocol Computed Tomography in Pediatric Patients With Pectus Excavatum
Objective
The aim of the study was to compare a pediatric ultralow-dose pectus excavatum computed tomography (CT) protocol versus standard-dose pediatric thoracic CT in terms of radiation dose, subjective and objective image quality, and its ability to detect incidental nonosseous thoracic pathology compared with imaging and clinical reference.
Methods
A single institution radiology database identified a total of 104 ultralow-dose pediatric thoracic CT cases with an equal number of age-matched standard-dose chest CT cases also selected for retrospective analysis. Objective image quality (contrast-to-noise and si...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Pediatric Source Type: research
Interpretation of Morphological Details of Nondegenerated Lumbar Intervertebral Discs on Magnetic Resonance Imaging: Insights From a Comparison Between Computed Tomography Discograms and Magnetic Resonance Imaging
Objective
To gain better insight into the magnetic resonance imaging (MRI) appearance of morphological intervertebral disc (IVD) details, such as annular and nucleus pulposus dimensions, by comparing contemporaneously obtained MRI and postdiscogram computed tomography (CT) scans of nondegenerated IVDs.
Methods
Axial T2-weighted images and same-day postdiscography CTs, acquired after the MRI, of 26 normal-appearing lumbar IVDs (control IVDs at discography) were compared. The location and extent of central hyperintense zone on MRI and the extent of contrast distribution on CT relative to the IVD width (in anteropo...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Neuroimaging: Spine Source Type: research
Incidental Thyroid Nodule on Chest Computed Tomography: Application of Computed Tomography Texture Analysis in Prediction of Ultrasound Classification
Objective
The aim of the study was to evaluate the value of computed tomography (CT) texture analysis (CTTA) in predicting ultrasound (US) classification of incidentally detected thyroid nodule (ITN) on chest CT.
Methods
A total of 117 ITNs (≥1 cm in the longest diameter) on chest CT scan of 107 patients was divided into 4 categories according to the Korean Thyroid Imaging Reporting and Data System (K-TIRADS) classification on recent thyroid US within 3 months. Computed tomography texture features were extracted with or without filtration using commercial software. The texture features were compared between th...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Neuroimaging: Head and Neck Source Type: research
A Comparative and Summative Study of Radiomics-based Overall Survival Prediction in Glioblastoma Patients
Conclusions
The RSF model based on radiomic features had promising potential in predicting overall survival of glioblastoma. Ten reproducible features were identified. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Neuroimaging: Brain Source Type: research
Association of Serum Ferritin With Marrow Iron Concentration Using a Three-Dimension Fat Analysis & Calculation Technique Sequence in Postmenopausal Women
Objective
The aim of the study was to determine whether serum iron and ferritin levels are determinants of iron accumulation in bone marrow using a three-dimension Fat Analysis & Calculation Technique (FACT) sequence.
Methods
We measured spinal marrow R2* using a 3T FACT sequence in 112 postmenopausal women (mean age, 62.6 years; range, 50–82.6 years). Serum iron and ferritin levels were determined in blood specimens. Lumbar spine bone mineral density was measured by dual-energy x-ray absorptiometry. The levels of serum iron and ferritin were evaluated in relation to the spinal marrow R2* values before and aft...
Source: Journal of Computer Assisted Tomography - May 1, 2022 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research
