Computed Tomography (CT)

Computed tomography (CT) systems use a series of X-ray images to create an image volume dataset with slices that can be manipulated on any plane using advanced visualization software. The section includes computed tomography scanners, CT contrast agents, CT angiography (CTA and CCTA), CT perfusion, spectral CT (dual-source CT), and iterative reconstruction dose reduction software.

Zebra Medical Vision announced its sixth FDA 510(k) clearance for its mammography solution, HealthMammo, which has already received a CE mark. Zebra Medical’s algorithm empowers breast radiologists by prioritizing and identifying suspicious mammograms, providing a safety net for radiologists. The suspicious mammograms are identified faster and read earlier than the current “first-in first-out” standard of care. 
News | Breast Imaging | July 27, 2020
July 26, 2020 —  Zebra Medical Vision announced its sixth FDA 510(k) clearance for its mammography solution,...
(a) A schematic of cycloidal computed tomography (not to scale, seen from top); by adding an array of beam stops in front of the detector, the setup is transformed into an edge-illumination x-ray phase-contrast imaging device. (b) A sinogram sampling grid for a rotation-only scheme. (c) A sinogram sampling grid for a cycloidal scheme. The grids are shown for one mask period and a subset of rotation angles; the combination of empty and filled circles shows the grids that would be achieved through fine latera

(a) A schematic of cycloidal computed tomography (not to scale, seen from top); by adding an array of beam stops in front of the detector, the setup is transformed into an edge-illumination x-ray phase-contrast imaging device. (b) A sinogram sampling grid for a rotation-only scheme. (c) A sinogram sampling grid for a cycloidal scheme. The grids are shown for one mask period and a subset of rotation angles; the combination of empty and filled circles shows the grids that would be achieved through fine lateral sampling (requiring dithering); the filled circles show the data that are sampled without dithering.

News | Computed Tomography (CT) | July 24, 2020
July 24, 2020 — A computed tomography (CT) scan technique that splits a full X-ray beam into thin beamlets can deliver...
The new Aquilion One Genesis SP cardiac CT system uses artificial intelligence to help reconstruct low dose cardiac CT images. #SCCT2020

The new Aquilion One Genesis SP cardiac CT system uses artificial intelligence to help reconstruct low dose cardiac CT images.

News | Computed Tomography (CT) | July 20, 2020
July 20, 2020 – To meet the growing cardiovascular imaging needs of healthcare systems, Canon Medical Systems USA is...
"Our study demonstrates that a real-world lung cancer screening can perform similar to randomized controlled trials in regard to important performance metrics," the UPenn authors of this AJR article concluded. Image courtesy of American Journal of Roentgenology (AJR)

"Our study demonstrates that a real-world lung cancer screening can perform similar to randomized controlled trials in regard to important performance metrics," the UPenn authors of this AJR article concluded. Image courtesy of American Journal of Roentgenology (AJR)

News | Lung Imaging | July 17, 2020
July 17, 2020 — An online first accepted manuscript published in ARRS' American Journal of Roentgenology (AJR) finds...
This data represents wave 3 of a QuickPoLL survey conducted in partnership with an imagePRO panel created by The MarkeTech Group (TMTG), regarding the effects of COVID-19 on their business

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Feature | Coronavirus (COVID-19) | July 15, 2020 | By Melinda Taschetta-Millane
Imaging volumes in hospitals and practices previously slowed by the coronavirus pandemic continue to improve, according...
Breathe Easy Bus from CHI Memorial in Chattanooga, TN. Image courtesy of CHI Memorial in Chattanooga, TN

Breathe Easy Bus from CHI Memorial in Chattanooga, TN. Image courtesy of CHI Memorial in Chattanooga, TN

News | Lung Imaging | July 15, 2020
June 15, 2020 — A mobile platform for lung cancer screening with low-dose computed tomography (CT) can be developed...
The Mindways Solid phantom with volume of interest in the quality assurance phantom (red circles, left side). A participant's noncontrast-enhanced axial CT (right side) with volume of interest (yellow circles) in the trabecular bone compartment of three vertebrae for bone mineral density measurements. Image courtesy of Radiological Society of North America

The Mindways Solid phantom with volume of interest in the quality assurance phantom (red circles, left side). A participant's noncontrast-enhanced axial CT (right side) with volume of interest (yellow circles) in the trabecular bone compartment of three vertebrae for bone mineral density measurements. Image courtesy of Radiological Society of North America

News | Cardiac Imaging | July 15, 2020
July 15, 2020 — Cardiac CT exams performed to assess heart health also provide an effective way to screen for...
Infervision's newly FDA approved CT lung AI application sets a new standard
News | Artificial Intelligence | July 10, 2020
July 10, 2020 — Infervision announced U.S. Food and Drug Administration (FDA) 510(K) clearance of the InferRead Lung CT...
Artificial intelligence (AI)-assisted software was used to identify inflammatory tissues in lung and automatically segment inflammatory lesions. Three-dimensional image shows regions of COVID-19 pneumonia in lung through AI postprocessing. Image courtesy of the American Journal of Roentgenology (AJR)

Artificial intelligence (AI)-assisted software was used to identify inflammatory tissues in lung and automatically segment inflammatory lesions. Three-dimensional image shows regions of COVID-19 pneumonia in lung through AI postprocessing. Image courtesy of the American Journal of Roentgenology (AJR)

News | Coronavirus (COVID-19) | July 10, 2020
July 10, 2020 — An open-access American Journal of Roentgenology (AJR) article investigating the differences in...
A lung CT of a COVID-19 patient, showing ground-glass opacities in the lung from COVID pneumonia. Image courtesy of John Kim.

A lung CT of a COVID-19 patient, showing ground-glass opacities in the lung from COVID pneumonia. Image courtesy of John Kim.

News | Coronavirus (COVID-19) | July 09, 2020
July 9, 2020 — With increased lung CT exam paradigms being used in the current COVID-19 (SARS-CoV-2) outbreak, and an...
This data represents wave 2 of a QuickPoLL survey conducted in partnership with an imagePRO panel created by The MarkeTech Group (TMTG), regarding the effects of COVID-19 on their business

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Feature | Coronavirus (COVID-19) | July 01, 2020 | By Melinda Taschetta-Millane
New QuickPoLL survey results are available on how radiologists feel about current business and the impact of COVID-19,...
Imaging Artificial Intelligence (AI) provider Qure.ai announced its first US FDA 510(k) clearance for its head CT scan product qER. The US Food and Drug Administration's decision covers four critical abnormalities identified by Qure.ai's emergency room product.
News | Artificial Intelligence | June 30, 2020
June 30, 2020 — Imaging Artificial Intelligence (AI) provider Qure.ai announced its first US FDA 510(k) clearance for...
In new QuickPoLL survey on imaging during the pandemic, responses were tallied from around 170 radiology administrators and business managers, who are part of an imagePRO panel created by The MarkeTech Group (TMTG), regarding the effects of COVID-19 on their business. TMTG is a research firm specializing in the medical device, healthcare and pharmaceutical industries.
Feature | Coronavirus (COVID-19) | June 30, 2020 | By Melinda Taschetta-Millane
The true impact that COVID-19 has had on the medical imaging industry still remains to be seen, as hospitals and...
Thoracic findings in a 15-year-old girl with Multisystem Inflammatory Syndrome in Children (MIS-C). (a) Chest radiograph on admission shows mild perihilar bronchial wall cuffing. (b) Chest radiograph on the third day of admission demonstrates extensive airspace opacification with a mid and lower zone predominance. (c, d) Contrast-enhanced axial CT chest of the thorax at day 3 shows areas of ground-glass opacification (GGO) and dense airspace consolidation with air bronchograms. (c) This conformed to a mosai

Thoracic findings in a 15-year-old girl with Multisystem Inflammatory Syndrome in Children (MIS-C). (a) Chest radiograph on admission shows mild perihilar bronchial wall cuffing. (b) Chest radiograph on the third day of admission demonstrates extensive airspace opacification with a mid and lower zone predominance. (c, d) Contrast-enhanced axial CT chest of the thorax at day 3 shows areas of ground-glass opacification (GGO) and dense airspace consolidation with air bronchograms. (c) This conformed to a mosaic pattern with a bronchocentric distribution to the GGO (white arrow, d) involving both central and peripheral lung parenchyma with pleural effusions (black small arrow, d). image courtesy of Radiological Society of North America

News | Coronavirus (COVID-19) | June 26, 2020
June 26, 2020 — In recent weeks, a multisystem hyperinflammatory condition has emerged in children in association with...
Researchers from five infectious disease hospitals across four districts in Guangzhou, China found that the less pulmonary consolidation on chest CT, the greater the possibility of negative initial reverse transcription–polymerase chain reaction (RT-PCR) results for 21 patients (nine men, 12 women; age range, 26–90 years)

Comparison of CT features between groups with negative and positive initial RT-PCR results.
aThe difference was statistically significant in comparison of the two groups (p < 0.05).

News | Coronavirus (COVID-19) | June 18, 2020
June 18, 2020 — An open-access American Journal of Roentgenology (AJR) article exploring the diagnostic value of chest...
The thickness of the cartilage covering the end of each bone is colour-coded, with red areas denoting thinner cartilage and green-blue areas denoting thicker cartilage. The technique helps locate where arthritis is affecting the joint over time.

The thickness of the cartilage covering the end of each bone is colour-coded, with red areas denoting thinner cartilage and green-blue areas denoting thicker cartilage. The technique helps locate where arthritis is affecting the joint over time. Image courtesy of the University of Cambridge

News | Magnetic Resonance Imaging (MRI) | June 11, 2020
June 11, 2020 — An algorithm that analyzes magnetic resonance imaging (MRI) images and automatically detects small...
Chief among the myriad practical updates to minimize risks for patients and imaging personnel alike is a tiered approach for delaying both outpatient and inpatient cross-sectional interventional procedures

For procedural delays that will not adversely affect patient outcome, Fananapazir and colleagues proposed the following tiered approach for both outpatient and inpatient scenarios: urgent procedures, procedures that should be performed within 2 weeks, procedures that should be performed within 2 months, and procedures that can safely be delayed 2 or 6 months. Courtesy of American Journal of Roentgenology (AJR)

News | Coronavirus (COVID-19) | June 05, 2020
June 5, 2020 — An open-access article in the American Journal of Roentgenology (AJR) details myriad practical updates...
According to a recent report by Johns Hopkins Medicine researchers, artificial intelligence (AI) should be used to expand the role of chest X-ray imaging — using computed tomography, or CT —  in diagnosing and assessing coronavirus infection so that it can be more than just a means of screening for signs of COVID-19 in a patient's lungs.

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News | Coronavirus (COVID-19) | June 04, 2020
June 4, 2020 — According to a recent report by Johns Hopkins Medicine researchers, artificial intelligence (AI) should...
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Blog | Coronavirus (COVID-19) | June 02, 2020
  COVID-19 continues to hold its grip on the world. This rapidly developing pandemic has dominated headlines since it...
Largest case series (n=30) to date yields high frequency (77%) of negative chest CT findings among pediatric patients (10 months-18 years) with COVID-19, while also suggesting common findings in subset of children with positive CT findings

A and B, Unenhanced chest CT scans show minimal GGOs (right lower and left upper lobes) (arrows) and no consolidation. Only two lobes were affected, and CT findings were assigned CT severity score of 2. Image courtesy of American Journal of Roentgenology (AJR)

News | Coronavirus (COVID-19) | May 29, 2020
May 29, 2020 — An investigation published open-access in the American Journal of Roentgenology (AJR) revealed a high...