Noninvasive Quantitative Plaque Analysis Identifies Hemodynamically Significant Coronary Arteries Disease
Objective:
To evaluate the diagnostic performance of automated quantitative analysis by coronary computed tomography angiography (CCTA) in identifying lesion-specific hemodynamic abnormality.
Methods:
A total of 132 patients (mean age, 61 y; 86 men) with 169 vessels (with 30% to 90% diameter stenosis), who successively underwent invasive coronary angiography with evaluation of fractional flow reserve (values ≤0.8 were defined as lesion-specific hemodynamic abnormalities), were analyzed by CCTA. CCTA images were quantitatively analyzed using automated software to obtain the following index: maximum diameter s...
Source: Journal of Thoracic Imaging - February 28, 2021 Category: Radiology Tags: Original Articles Source Type: research
Interobserver Reliability of the Coronary Artery Disease Reporting and Data System in Clinical Practice
This study aimed to evaluate interobserver reproducibility between cardiothoracic radiologists applying the Coronary Artery Disease Reporting and Data System (CAD-RADS) to describe atherosclerotic burden on coronary computed tomography angiography.
Methods:
Forty clinical computed tomography angiography cases were retrospectively and independently evaluated by 3 attending and 2 fellowship-trained cardiothoracic radiologists using the CAD-RADS lexicon. Radiologists were blinded to patient history and underwent initial training using a practice set of 10 subjects. Interobserver reproducibility was assessed using an in...
Source: Journal of Thoracic Imaging - February 28, 2021 Category: Radiology Tags: Original Articles Source Type: research
Review of Technical Advancements and Clinical Applications of Photon-counting Computed Tomography in Imaging of the Thorax
Photon-counting computed tomography (CT) is a developing technology that has the potential to address some limitations of CT imaging and bring about improvements and potentially new applications to this field. Photon-counting detectors have a fundamentally different detection mechanism from conventional CT energy-integrating detectors that can improve dose efficiency, spatial resolution, and energy-discrimination capabilities. In the past decade, promising human studies have been reported in the literature that have demonstrated benefits of this relatively new technology for various clinical applications. In this review, w...
Source: Journal of Thoracic Imaging - February 28, 2021 Category: Radiology Tags: Review Article Source Type: research
Cardiac Magnetic Resonance Imaging in Coronavirus Disease 2019 (COVID-19): A Systematic Review of Cardiac Magnetic Resonance Imaging Findings in 199 Patients
Conclusion:
CMR is useful in assessing the prevalence, mechanism, and extent of myocardial injury in COVID-19 patients. Myocarditis is the most common imaging diagnosis, with the common imaging findings being mapping abnormalities and myocardial edema on T2, followed by LGE. As cardiovascular involvement is associated with poor prognosis, its detection warrants prompt attention and appropriate treatment. (Source: Journal of Thoracic Imaging)
Source: Journal of Thoracic Imaging - February 28, 2021 Category: Radiology Tags: Original Articles Source Type: research
Computed Tomography-based Lung Residual Volume and Mortality of Patients With Coronavirus Disease-19 (COVID-19)
Rationale and Objectives:
To assess the effect of computed tomography (CT)-based residual lung volume (RLV) on mortality of patients with coronavirus disease 2019 (COVID-19).
Materials and Methods:
A single-center, retrospective study of a prospectively maintained database was performed. In total, 138 patients with COVID-19 were enrolled. Baseline chest CT scan was performed in all patients. CT-based automated and semi-automated lung segmentation was performed using the Alma Medical workstation to calculate normal lung volume, lung opacities volume, total lung volume, and RLV. The primary end point of the study ...
Source: Journal of Thoracic Imaging - February 28, 2021 Category: Radiology Tags: Original Articles Source Type: research
Response to Grannis FW—Current Controversies in Cardiothoracic Imaging: Overdiagnosis at Lung Cancer Screening—No So Bad After All—Counterpoint
No abstract available (Source: Journal of Thoracic Imaging)
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Web Exclusive Content: Commentaries Source Type: research
Response to Grannis FW. Current Controversies in Cardiothoracic Imaging: Overdiagnosis at Lung Cancer Screening—No So Bad After All—Counterpoint
No abstract available (Source: Journal of Thoracic Imaging)
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Web Exclusive Content: Commentaries Source Type: research
COVID-19 and its Mimics: What the Radiologist Needs to Know
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the current outbreak of Coronavirus disease 2019 (COVID-19). Although imaging should not be used for first-line screening or diagnosis, radiologists need to be aware of its imaging features, and those of common conditions that may mimic COVID-19 pneumonia. In this Pictorial Essay, we review frequently encountered conditions with imaging features that overlap with those that are typical of COVID-19 (including other viral pneumonias, chronic eosinophilic pneumonia, and organizing pneumonia), and those with features that are indeterminate for COVI...
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Web Exclusive Content: Pictorial Essay Source Type: research
Prevalence of Burnout Among Cardiothoracic Radiologists
Conclusions:
The prevalence of burnout among cardiothoracic radiologists is comparable to that reported for radiologists in other subspecialties such as musculoskeletal and interventional radiology. High work relative value unit productivity and longer work hours are associated with higher prevalence of burnout. (Source: Journal of Thoracic Imaging)
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Original Articles Source Type: research
Radiation Dose Reduction Using a Novel Fluoroscopy System in Patients Undergoing Diagnostic Invasive Coronary Angiography
Background:
Invasive coronary angiography (ICA) still causes a significant amount of radiation exposure for patients and operators. In February 2017, the Azurion system was introduced, a new-generation fluoroscopy image acquisition and processing system. Radiation exposure in patients undergoing ICA was assessed comparing the novel Azurion 7 F12 angiography system to its predecessor Allura Xper in a randomized manner.
Methods:
Radiation exposure was prospectively analyzed in 238 patients undergoing diagnostic ICA. Patients were randomly assigned to the novel Azurion system (119 patients) or its predecessor Allur...
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Original Articles Source Type: research
Three-dimensional Ultrashort Echotime Magnetic Resonance Imaging for Combined Morphologic and Ventilation Imaging in Pediatric Patients With Pulmonary Disease
Conclusion:
3D UTE-MRI using a stack-of-spirals trajectory enables combined morphologic and functional imaging of the lungs within ~115 second acquisition time and might be suitable for monitoring a wide spectrum of pulmonary diseases. (Source: Journal of Thoracic Imaging)
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Original Articles Source Type: research
A Dose Simulation X-Ray Software: An Innovating Tool to Reduce Chest Radiograph Exposure in Children
Conclusion:
Chest radiography dose might be reduced by 20% in children between 5 and 20 kg, 50% in children between 20 and 30 kg, and 60% in children over 30 kg, without any difference in the image quality appreciation. Software that produced simulated x-ray with decreasing delivered dose is an innovating tool for an optimization process. (Source: Journal of Thoracic Imaging)
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Original Articles Source Type: research
Performance of Chest Computed Tomography in Differentiating Coronavirus Disease 2019 From Other Viral Infections Using a Standardized Classification
Background:
An expert consensus recently proposed a standardized coronavirus disease 2019 (COVID-19) reporting language for computed tomography (CT) findings of COVID-19 pneumonia.
Purpose:
The purpose of the study was to evaluate the performance of CT in differentiating COVID-19 from other viral infections using a standardized reporting classification.
Methods:
A total of 175 consecutive patients were retrospectively identified from a single tertiary-care medical center from March 15 to March 24, 2020, including 87 with positive reverse transcription-polymerase chain reaction (RT-PCR) test for COVID-19 a...
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Original Articles Source Type: research
Private Tour Guide to Pediatric Coronavirus Disease of 2019 and Multisystem Inflammatory Syndrome in Children in 10 Minutes: What Thoracic Radiologists Need to Know
This article is designed to highlight clinically useful information regarding the imaging manifestations of pediatric COVID-19 pneumonia, including findings more unique to pediatric patients, and multisystem inflammatory syndrome in children. (Source: Journal of Thoracic Imaging)
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Review Articles Source Type: research
The Regimen of Computed Tomography Screening for Lung Cancer: Lessons Learned Over 25 Years From the International Early Lung Cancer Action Program
We learned many unanticipated and valuable lessons since we started planning our study of low-dose computed tomography (CT) screening for lung cancer in 1991. The publication of the baseline results of the Early Lung Cancer Action Project (ELCAP) in Lancet 1999 showed that CT screening could identify a high proportion of early, curable lung cancers. This stimulated large national screening studies to be quickly started. The ELCAP design, which provided evidence about screening in the context of a clinical program, was able to rapidly expand to a 12-institution study in New York State (NY-ELCAP) and to many international in...
Source: Journal of Thoracic Imaging - December 17, 2020 Category: Radiology Tags: Review Articles Source Type: research
