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.

AI-powered premium large bore CT scanner offers industry’s largest bore and widest field-of-view
News | Computed Tomography (CT) | October 24, 2020
October 24, 2020 — An estimated 1.8 million new cancer cases will be diagnosed in the U.S. this year alone. With a...
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
October 22, 2020 – In the FORECAST randomized clinical trial, the use of fractional flow reserve (FFR) derived from...
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
October 22, 2020 — According to an open-access article in ARRS' American Journal of Roentgenology (AJR), the use of...
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
October 21, 2020 — The BBC News reported that Luke Allard of Mill Houses, King's Lynn, died at Queen Elizabeth Hospital...
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
October 20, 2020 — Bioimaging technologies are the eyes that allow doctors to see inside the body in order to diagnose...
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
October 13, 2020 — Given recent high-profile cases of COVID-19 and to aid in the ongoing fight against the pandemic in...
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
October 6, 2020 — According to an open-access article in ARRS’ American Journal of Roentgenology (AJR), dual-energy...
Canon Medical’s Aquilion ONE / PRISM Edition, designed for deep intelligence, integrates artificial intelligence (AI) technology to maximize conventional and spectral computed tomography (CT) capabilities with automated workflows, while providing deep clinical insights to assist physicians in making more informed decisions across the patient’s care cycle.
News | RSNA | October 01, 2020
October 1, 2020 — Canon Medical’s Aquilion ONE / PRISM Edition, designed for deep intelligence, integrates artificial...
An example of a CT coronary artery calcium scoring exam showing how each vessel segment is scored to assess a patient's risk for a future heart attack. Example is from Canon Medical Systems.

An example of a CT coronary artery calcium scoring exam showing how each vessel segment is scored to assess a patient's risk for a future heart attack. Example is from Canon Medical Systems.

News | Cardiac Imaging | September 25, 2020
September 25, 2020 — A study out of University Hospitals (UH) found that removing the cost barrier for coronary artery...
Webinar | Computed Tomography (CT) | September 24, 2020
Making a capital equipment purchase requires a well thought out plan. This is crucial for a small rural health hospital...
New research from King's College London has found that COVID-19 may be diagnosed on the same emergency scans intended to diagnose stroke.

Canon Medical Systems

News | Cardiac Imaging | September 22, 2020
September 22, 2020 — New research from King's College London has found that COVID-19 may be diagnosed on the same...
Philips Azurion Lung Edition supports high precision diagnosis and minimally invasive therapy in one room
News | Lung Imaging | September 21, 2020
September 21, 2020 — Philips introduced Azurion Lung Edition, an advanced 3-D imaging and navigation platform to...
Orlando Health ORMC installs new Siemens system, which includes myExam Companion intelligent user support to guide technologist through clinical workflow
News | Computed Tomography (CT) | September 18, 2020
September 18, 2020 — Florida’s Orlando Health Orlando Regional Medical Center (ORMC) recently became the first...
Figure 1. Doppler flows in subpleural consolidation shows smoothly dilated branching arteries

Figure 1. Doppler flows in subpleural consolidation shows smoothly dilated branching arteries 

Feature | Radiology Imaging | September 17, 2020 | By Robert Bard, M.D. PC, DABR, FASLM
COVID-19 is routinely studied using lung ultrasound and quantifying the disease by the “white lung” appearance of...
Through computed tomography (CT) imaging, WVU geologist James Lamsdell led a team that found evidence of air breathing in a 340 million-year-old sea scorpion, or eurypterid. This is one of the scans of the specimen

Through computed tomography (CT) imaging, WVU geologist James Lamsdell led a team that found evidence of air breathing in a 340 million-year-old sea scorpion, or eurypterid. This is one of the scans of the specimen. Image courtesy of James Lamsdell

News | Computed Tomography (CT) | September 11, 2020
September 11, 2020 — Scientists have long debated the respiratory workings of sea scorpions, but a new discovery by a ...
Feature | CT Angiography (CTA) | September 09, 2020
September 8, 2020 — The Journal of the American College of Cardiology (JACC) published a report, “Current Evidence and...
The solution leverages image transfer speed, tag morphing, and multi-vendor PACS capabilities to enable comprehensive image visualization and analysis at the point of care
News | Breast Imaging | September 03, 2020
September 3, 2020 — Based on its recent analysis of the global breast imaging workstation industry, Frost &...
Philips announced its next-generation Philips Azurion image-guided therapy platform, marking an important step forward in optimizing clinical and operational lab performance and expanding the role of image-guided interventions in the treatment of patients.
News | Computed Tomography (CT) | September 01, 2020
September 1, 2020 — Philips announced its next-generation Philips Azurion image-guided therapy platform, marking an...
Electronic cigarette or vaping product use-associated lung injury in a 51-year-old man manifesting as an acute lung injury pattern at CT with subsequent organization.

Electronic cigarette or vaping product use-associated lung injury in a 51-year-old man manifesting as an acute lung injury pattern at CT with subsequent organization. (a, c) Axial unenhanced CT images at presentation through (a) mid and (c) lower lungs show ground-glass opacity with subpleural sparing (arrows); this distribution was present in 45% of chest CT studies at presentation in our cohort (11). (b, d) Axial unenhanced CT images obtained 6 days later show ground-glass opacity has transitioned to consolidation and mild architectural distortion, consistent with developing organization. The patient was initially treated with antibiotics followed by corticosteroid therapy, with slow clinical improvement. Image courtesy of Radiological Society of North America

News | Computed Tomography (CT) | August 27, 2020
August 27, 2020 — Injuries to the lungs from vaping have suggestive patterns on computed tomography (CT) scans that...
B, Representative computational model shows lung stroma intraorgan structure of XCAT phantom that was developed using anatomically informed mathematic model. Inset shows enlarged view for better visibility of details and small structures. C, Voxelized rendition (ground truth) of XCAT phantom highlights detailed model of lung parenchyma. Inset shows enlarged view for better visibility of details and small structures

B, Representative computational model shows lung stroma intraorgan structure of XCAT phantom that was developed using anatomically informed mathematic model. Inset shows enlarged view for better visibility of details and small structures. C, Voxelized rendition (ground truth) of XCAT phantom highlights detailed model of lung parenchyma. Inset shows enlarged view for better visibility of details and small structures. Image courtesy of the American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

News | Coronavirus (COVID-19) | August 26, 2020
August 26, 2020 — An open-access article in ARRS' American Journal of Roentgenology (AJR) established a foundation for...