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.

GE Healthcare invests in a unique approach to cutting-edge CT technology and acquires Prismatic Sensors AB, a leader in Deep Silicon detector technology for photon counting computed tomography (PCCT)
News | Computed Tomography (CT) | November 25, 2020
GE Healthcare Pioneers Photon Counting CT with Prismatic Sensors Acquisition
November 25, 2020 — GE Healthcare today announced its acquisition of Prismatic Sensors AB, a Swedish start-up...
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ASG well positioned for growth as healthcare marketplace continues to evolve 

Allan Klotsche

News | Radiology Imaging | November 24, 2020
Alpha Source Group Names New CEO, Expands Customized Service Solutions to Focus on OEM Partnerships
November 24, 2020 — Alpha Source Group (ASG), a comprehensive next-generation services partner, has named Allan...
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Videos | Coronavirus (COVID-19) | November 20, 2020
VIDEO: Example of Bowel Ischemia and Perforation From SMA Thrombus in COVID-19 Patient
This video shows a computed tomography (CT) scroll through showing bowel ischemia and perforation (see arrows) due to ...
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Single-slice of the chest CT showing the abnormalities. Arrows indicate the location of the breast mass (red arrow), lymphadenopathy (blue arrow), and a lung nodule (yellow arrow). Arrows not present in experimental display. Image courtesy of Psychonomic Bulletin & Review

Single-slice of the chest CT showing the abnormalities. Arrows indicate the location of the breast mass (red arrow), lymphadenopathy (blue arrow), and a lung nodule (yellow arrow). Arrows not present in experimental display. Image courtesy of Psychonomic Bulletin & Review

Feature | Radiology Imaging | November 20, 2020
Missing the Radiological Forest for the Trees
There’s a classic video demonstrating how our brains process information and allocate attention in which people bounce...
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CurveBeam announced the HiRise, its weight bearing CT (WBCT) imaging system for the entire lower extremity, has received FDA 510(K) clearance.
News | Computed Tomography (CT) | November 19, 2020
CurveBeam Announces FDA 510(K) Clearance for HiRise Weight-bearing CT System
November 19, 2020 — CurveBeam announced the HiRise, its weight bearing CT (WBCT) imaging system for the entire lower...
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Videos | Coronavirus (COVID-19) | November 18, 2020
VIDEO: COVID-19 Pneumonia Chest CT Scan Scroll Through
An example of a COVID-19 (SARS-CoV-2) pneumonia on chest computed tomography (CT) scan. Coronavirus appears as ground...
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The use of cardiovascular computed tomography angiography (CCTA) is one of the areas that has seen a sudden increase in use and value since the start of the ongoing COVID-19 pandemic.
Feature | Cardiac Imaging | November 12, 2020 | By Dave Fornell
COVID’s Impact and the Role of Cardiovascular CT
The use of cardiovascular computed tomography angiography (CCTA) is one of the areas that has seen a sudden increase in...
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Cancer-specific mortality, all-cause mortality and overdiagnosis in lung cancer screening trials: a meta-analysis
News | Lung Imaging | November 11, 2020
New Analysis Finds Lung Cancer Screening Reduces Rates of Lung Cancer-specific Death
November 11, 2020 — Low-dose computed tomography (CT) screening methods may prevent one death per 250 at-risk adults...
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Sponsored Content | Videos | Artificial Intelligence | November 11, 2020
VIDEO: Integrating Artificial Intelligence Into Radiologists Workflow
Artificial Intelligence (AI) is becoming more common place in radiology practices, and emerging technologies are...
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SCCT Releases New Guidelines for Cardiology and Radiology Trainees in Cardiovascular CT
News | Computed Tomography (CT) | November 09, 2020
SCCT Releases New Guidelines for Cardiology and Radiology Trainees in Cardiovascular CT
November 6, 2020 — The Society of Cardiovascular Computed Tomography (SCCT) has released a new training guideline,...
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Honoring essential healthcareprofessionals, Nov. 8-14
News | Radiology Imaging | November 09, 2020
Radiologic Technologists Play Crucial Role in COVID-19 Diagnosis
November 9, 2020 — As COVID-19 continues to spread in communities throughout the country, Americans rely on radiologic...
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Images show examples of false-positive aneurysms, including (a) bony structures and vessel bifurcation, (b) veins, (c) vessel curvatures, and (d) calcified plaques. Red box (d) indicates aneurysms annotated by radiologists, and the blue boxes indicate aneurysm candidates provided by the algorithm. Images courtesy of the Radiological Society of North America

Images show examples of false-positive aneurysms, including (a) bony structures and vessel bifurcation, (b) veins, (c) vessel curvatures, and (d) calcified plaques. Red box (d) indicates aneurysms annotated by radiologists, and the blue boxes indicate aneurysm candidates provided by the algorithm. Images courtesy of the Radiological Society of North America

News | Artificial Intelligence | November 04, 2020
AI Helps Detect Brain Aneurysms on CT Angiography
November 4, 2020 — A powerful type of artificial intelligence known as deep learning can help physicians detect...
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Evaluation of the lung apices using computed tomography angiography of the head and neck during acute ischemic stroke (AIS) can provide the first objective opportunity to screen for coronavirus disease 2019 (COVID-19)

Image courtesy of the American Heart Association

News | CT Angiography (CTA) | October 30, 2020
Lung Scans for Stroke Patients Could Provide Earlier COVID-19 Detection
October 30, 2020 — Computed tomography angiogram (CTA) scans may offer fast and early detection of COVID-19 in acute...
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AI-powered premium large bore CT scanner offers industry’s largest bore and widest field-of-view
News | Computed Tomography (CT) | October 24, 2020
Canon Medical Showcases New Aquilion Exceed LB CT System at ASTRO20
October 24, 2020 — An estimated 1.8 million new cancer cases will be diagnosed in the U.S. this year alone. With a...
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An example of a HeartFlow FFR-CT image showing the blood flow through what looked like a significant blockage on CT angiography alone, actually was not flow-limiting based on computational fluid dynamics. Use of the technology was supposed to reduce the number of diagnostic catheterizations in the FORECAST trial, but the costs of FFR-CT were not offset enough to show cost savings.

An example of a HeartFlow FFR-CT image showing the blood flow through what looked like a significant blockage on CT angiography alone, actually was not flow-limiting based on computational fluid dynamics. Use of the technology was supposed to reduce the number of diagnostic catheterizations in the FORECAST trial, but the costs of FFR-CT were not offset enough to show cost savings.

Feature | CT Angiography (CTA) | October 23, 2020
FFR-CT Did Not Significantly Reduce Costs But Reduced Rates of Invasive Coronary Angiography
October 22, 2020 – In the FORECAST randomized clinical trial, the use of fractional flow reserve (FFR) derived from...
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A, Initial conventional axial CT image shows no noticeable lung damage (within red box) in right upper lobe. B, Electron density spectral CT image obtained at same time as image in A shows lesions (within red box) in right upper lobe. C, Follow-up conventional axial chest CT image obtained 5 days after images in A and B confirm presence of lesions (within red box) in right upper lobe.

A, Initial conventional axial CT image shows no noticeable lung damage (within red box) in right upper lobe. B, Electron density spectral CT image obtained at same time as image in A shows lesions (within red box) in right upper lobe. C, Follow-up conventional axial chest CT image obtained 5 days after images in A and B confirm presence of lesions (within red box) in right upper lobe. Image courtesy of the American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

News | Coronavirus (COVID-19) | October 22, 2020
Spectral CT Improves Detection of Early-stage Coronavirus Disease
October 22, 2020 — According to an open-access article in ARRS' American Journal of Roentgenology (AJR), the use of...
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According to an inquest, a man with a heart disorder and chest pain died two days after a doctor viewed the wrong scan and sent him home
News | Computed Tomography (CT) | October 21, 2020
Patient Dies After CT Scan Mix-up
October 21, 2020 — The BBC News reported that Luke Allard of Mill Houses, King's Lynn, died at Queen Elizabeth Hospital...
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Rensselaer, First-Imaging, and GE Global researchers develop a deep neural network to perform nearly as well as more complex dual-energy CT imaging technology
News | Computed Tomography (CT) | October 20, 2020
Standard CT Technology Produces Spectral Images with Deep Learning Algorithms
October 20, 2020 — Bioimaging technologies are the eyes that allow doctors to see inside the body in order to diagnose...
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The use of CT and X-ray in the assessment and treatment plan for President Trump underscores the critical role that medical imaging must play in the fight against COVID-19

A COVID-19 chest CT heat map from RADlogics

News | Artificial Intelligence | October 13, 2020
Radiologists Urge Use of Medical Imaging and AI-Powered Solutions to Manage COVID-19
October 13, 2020 — Given recent high-profile cases of COVID-19 and to aid in the ongoing fight against the pandemic in...
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A, Sagittal reformatted bone window CT image of thoracic spine shows wedge-shaped deformity at T6 and subtle superior endplate deformities at T5 and T8. Arrows denote deformities. B, Color-coded dual-energy CT shows only T8 deformity is associated with bone marrow edema; T5 and T6 deformities likely represent chronic fractures. Arrows denote deformities.

A, Sagittal reformatted bone window CT image of thoracic spine shows wedge-shaped deformity at T6 and subtle superior endplate deformities at T5 and T8. Arrows denote deformities. B, Color-coded dual-energy CT shows only T8 deformity is associated with bone marrow edema; T5 and T6 deformities likely represent chronic fractures. Arrows denote deformities.

News | Computed Tomography (CT) | October 06, 2020
DECT in the ED Increases Diagnostic Confidence, Reduces Follow-Up Imaging, Projects Cost Savings
October 6, 2020 — According to an open-access article in ARRS’ American Journal of Roentgenology (AJR), dual-energy...
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