Technology Report:

Computed Tomography (CT)

Contributing Editor Greg Freiherr offers an overview of computed tomography (CT) advances at the Radiological Society of North America (RSNA) 2015. The video includes Freiherr during his booth tours with some of the key vendors who were featuring new technology.

Related Content

#COVID19 #Coronavirus #2019nCoV #Wuhanvirus

Image courtesy of Getty Images

News | March 11, 2020
March 11, 2020 — As...
#COVID19 #Coronavirus #2019nCoV #Wuhanvirus

Flowchart shows time difference between positive laboratory test results and positive CT findings for COVID-19 and adenovirus infection in the study group. Image courtesy of American Journal of Roentgenology (AJR)

News | March 06, 2020
March 6, 2020 — An article by radiologis...
Schematic depiction of the automated process for assessing fat, muscle, liver, aortic calcification, and bone from original abdominal CT scan data

Figure 1: Depiction of the fully automated CT biomarkers tools used in this study. (A) Schematic depiction of the automated process for assessing fat, muscle, liver, aortic calcification, and bone from original abdominal CT scan data. (B) Case example in an asymptomatic 52-year-old man undergoing CT for colorectal cancer screening. At the time of CT screening, he had a body-mass index of 27·3 and Framingham risk score of 5% (low risk). However, several CT-based metabolic markers were indicative of underlying disease. Multivariate Cox model prediction based on these three CT-based results put the risk of cardiovascular event at 19% within 2 years, at 40% within 5 years, and at 67% within 10 years, and the risk of death at 4% within 2 years, 11% within 5 years, and 27% within 10 years. At longitudinal clinical follow-up, the patient suffered an acute myocardial infarction 3 years after this initial CT and died 12 years after CT at the age of 64 years. (C) Contrast-enhanced CT performed 7 months before death for minor trauma was interpreted as negative but does show significant progression of vascular calcification, visceral fat, and hepatic steatosis. HU=Hounsfield units.

News | March 06, 2020
March 6, 2020 — Researchers at the National Institutes of Health a
Chest radiograph in a patient with COVID-19 infection demonstrates right infrahilar airspace opacities #COVID19 #Coronavirus #2019nCoV #Wuhanvirus #HIMSS20

Chest radiograph in a patient with COVID-19 infection demonstrates right infrahilar airspace opacities. Image courtesy of Radiology: Cardiothoracic Imaging

News | March 06, 2020
March 6, 2020 — While...
#COVID2019 #COVID19 #coronavirus #2019nCoV
News | March 02, 2020
March 2, 2020 — As part of the U.S.
A chest CT scan of a 79-year-old woman who presented with fever, dry cough, and chest pain for three days. Her husband and daughter-in-law had been recently diagnosed with coronavirus disease. The patient expired 11 days after admission.(Courtesy of Song F, Shanghai Public Health Clinical Center, Shanghai, China) #COVID2019 #COVID19 #coronavirus #2019nCoV

A chest CT scan of a 79-year-old woman who presented with fever, dry cough, and chest pain for three days. Her husband and daughter-in-law had been recently diagnosed with coronavirus disease. The patient expired 11 days after admission.(Courtesy of Song F, Shanghai Public Health Clinical Center, Shanghai, China)

Feature | February 28, 2020
February 28, 2020 — The first in a series of medical imaging studies on novel coronavirus (COVID-19) was published on
In a study of more than 1,000 patients published in the journal Radiology, chest CT outperformed lab testing in the diagnosis of 2019 novel coronavirus disease (COVID-19) #COVID19 #COVID-2019 #2019nCoV #COVID-19

Chest CT images of a 29-year-old man with fever for 6 days. RT-PCR assay for the SARS-CoV-2 using a swab sample was performed on Feb. 5, 2020, with a positive result. (A column) Normal chest CT with axial and coronal planes was obtained at the onset. (B column) Chest CT with axial and coronal planes shows minimal ground-glass opacities in the bilateral lower lung lobes (yellow arrows). (C column) Chest CT with axial and coronal planes shows increased ground-glass opacities (yellow arrowheads). (D column) Chest CT with axial and coronal planes shows the progression of pneumonia with mixed ground-glass opacities and linear opacities in the subpleural area. (E column) Chest CT with axial and coronal planes shows the absorption of both ground-glass opacities and organizing pneumonia. Image courtesy of Radiology

News | February 26, 2020 | Melinda Taschetta-Millane and Dave Fornell
February 26, 2020 — In a study of m
 over the course of a week and a half #coronavirus #COVID19 #COVID-2019 #2019nCoV

29-year old male with unknown exposure history, presenting with fever and cough, ultimately requiring intensive care unit admission. (a) Axial thin-section non-contrast CT scan shows diffuse bilateral confluent and patchy ground-glass (solid arrows) and consolidative (dashed arrows) pulmonary opacities. (b) The disease in the right middle and lower lobes has a striking peripheral distribution (arrow). Image courtesy of Radiology 

News | February 26, 2020
February 26, 2020 — Mount Sinai Health System physicians—the
 #coronavirus #nCoV2019 #2019nCoV #COVID19
News | February 25, 2020
February 25, 2020 — With initial order of 10 mobile Bod...
Images in a 41-year-old woman who presented with fever and positive polymerase chain reaction assay for the 2019 novel coronavirus (2019-nCoV) #coronavirus #nCoV2019 #2019nCoV #COVID19

Images in a 41-year-old woman who presented with fever and positive polymerase chain reaction assay for the 2019 novel coronavirus (2019-nCoV). Three representative axial thin-section chest CT images show multifocal ground glass opacities without consolidation. Three-dimensional volume-rendered reconstruction shows the distribution of the ground-glass opacities (arrows). Image courtesy of the Radiological Society of North America (RSNA)

News | February 25, 2020
February 24, 2020 — The U.S.
Carestream’s state-of-the-art OnSight 3D Extremity System
News | February 25, 2020
February 25, 2020 — Carestream’s state-of-the-art...
An axial CT image obtained without intravenous contrast in a 36‐year‐old male (Panel A) shows bilateral ground‐glass opacities in the upper lobes with a rounded morphology (arrows). #coronavirus #nCoV2019 #2019nCoV #COVID19

An axial CT image obtained without intravenous contrast in a 36‐year‐old male (Panel A) shows bilateral ground‐glass opacities in the upper lobes with a rounded morphology (arrows). Image courtesy of Radiology Online.

News | February 20, 2020
February 20, 2020 — In new research
Chest CT imaging of patient. #coronavirus #nCoV2019 #2019nCoV #COVID19

Examples of typical chest CT findings compatible with COVID-19 pneumonia in patients with epidemiological and clinical presentation suspicious for COVID-19 infection. This image is part of the original research, Sensitivity of Chest CT for COVID-19: Comparison to RT-PCR, published Feb. 19, 2020, in Radiology Online.

News | February 19, 2020
February 19, 2020 — In new research
Novel Coronavirus 2019-nCoV Pneumonia. #coronavirus #nCoV2019 #2019nCoV #COVID19

Image by _freakwave_ from Pixabay 

News | February 16, 2020
February 16, 2020 — The following statement was issued by the U.S.
negative RT-PCR results and chest CT findings compatible with 2019-nCoV pneumonia. #coronavirus #nCoV2019 #2019nCoV #COVID19

Figure 1: Patient flowchart. Of 167 patients screened, 5 (3%) had negative RT-PCR results and chest CT findings compatible with 2019-nCoV pneumonia. Chart courtesy of Radiology

Feature | February 14, 2020 | By Melinda Taschetta-Millane
As the 2019-nCoV Pneumonia is taking the world by storm, researchers have found a possible way to predict this virus
Mobile devices proved both reliable and accurate for the clinical decision to administer IV thrombolysis in patients with acute stroke

Appearance of same unenhanced CT scan on three reading systems: E-2620 monitor (Barco) (A), Galaxy S8 Plus (Samsung) smartphone (B) and ThinkPad T460s laptop computer (Lenovo) (C).

News | February 12, 2020
February 12, 2020 — Mobile devices proved both reliable and accurate for the clinical decision to administer IV throm
CT image of Novel Coronavirus 2019-nCoV from the Radiology article showing a baseline CT image of a 75 year old male with multiple patchy areas of pure ground glass opacity (GGO) and GGO with reticular and/or interlobular septal thickening. Follow-up CT images on day 3 after admission show an overlap of organizing pneumonia with diffuse alveolar damage in that it is more diffuse and associated with underlying reticulation. Read more and see 15 more images from novel coronavirus patients in the article.

An image from the Radiology article showing a baseline CT image of a 75 year old male with multiple patchy areas of pure ground glass opacity (GGO) and GGO with reticular and/or interlobular septal thickening. Follow-up CT images on day 3 after admission show an overlap of organizing pneumonia with diffuse alveolar damage in that it is more diffuse and associated with underlying reticulation. Read more and see 15 more images from novel coronavirus patients in the article.

Feature | February 11, 2020
February 11, 2020 — The Radiological Society of North America (RSNA) jo
A patient-specific airway stents developed by Cleveland Clinic physician Tom Gildea, M.D. 

A patient-specific airway stents developed by Cleveland Clinic physician Tom Gildea, M.D. 

News | February 10, 2020
February 10, 2020 — The U.S.

Image courtesy of GlobalData

News | February 10, 2020
February 10, 2020 — The compute...
An example of artificial intelligence (AI) being developed by Hitachi to automatically review and identify nodules on lung CT scans. This is part of a suite of AI apps Hitachi is developing. This example was being shown as a work in progress at RSNA 2019.

An example of artificial intelligence (AI) being developed by Hitachi to automatically review and identify nodules on lung CT scans. This is part of a suite of AI apps Hitachi is developing. This example was being shown as a work in progress at RSNA 2019. Photo by Dave Fornell.

Feature | February 07, 2020 | Sanjay Parekh, Ph.D. 
February 7, 2020 – At the 2019 Radiological Society...