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.

Videos | Coronavirus (COVID-19) | January 26, 2021
This is an example of a COVID-19 (SARS-CoV-2) positive patient's lung computed tomography (CT) scan. The video scrolls...
Aquilion Exceed LB CT System offers industry’s largest bore and widest field-of-view
News | Computed Tomography (CT) | January 25, 2021
Janaury 25, 2021 —Canon Medical Systems USA, Inc. has received FDA clearance for the Aquilion Exceed LB CT system,...
The key trends Clinicians reviewing a COVID-19 patient's lung CT that reveals the severity of COVID-caused pneumonia. The impact of COVID on radiology was a major, over arching trend at  the 2020 Radiological Society of North America (RSNA) meeting. Getty Imagesbserved at 2020 Radiological Society of North America (RSNA) meeting all focused around COVID-19 (SARS-CoV-2) and the impact it has had on radiology. #RSNA #RSNA20 #RSNA2020

Clinicians reviewing a COVID-19 patient's lung CT that reveals the severity of COVID-caused pneumonia. The impact of COVID on radiology was a major, over arching trend at  the 2020 Radiological Society of North America (RSNA) meeting. Getty Images

Feature | RSNA | January 20, 2021 | By Melinda Taschetta-Millane and Dave Fornell
The key trends observed at 2020 Radiological Society of North America (RSNA) meeting all focused around COVID-19 (SARS-...
 new study published on European Radiology evaluates the image quality of low iodine concentration, dual-energy CT (DECT) combined with a deep learning–based denoising technique with ClariCT.AI for pediatric abdominal CT, compared with that of standard iodine concentration single-energy polychromatic CT (SECT).
News | Artificial Intelligence | January 19, 2021
January 19, 2021 — Radiation exposure and side effects related to iodine contrast agents are the two main concerns of...
Coronary CT angiography images courtesy of Canon Medical Systems.

Coronary CT angiography images courtesy of Canon Medical Systems.

News | Computed Tomography (CT) | January 18, 2021
January 18, 2020) — The Society of Cardiovascular Computed Tomography (SCCT), in collaboration with the North American...
MRI of Nonferromagnetic Ballistics Suspended in Gelatin. 

MRI of Nonferromagnetic Ballistics Suspended in Gelatin. Scout (A), T1-weighted spin-echo (SE) (B), T2-weighted SE (C), T2-weighted gradient-recalled echo (GRE) (TR/TE, 500/10; D), and T2-weighted GRE (TR/TE, 700/30; E) MR images show jacket hollow point .45 automatic Colt pistol bullet (Corbon) (1), solid lead .45 Long Colt bullet (Winchester) (2), full metal jacket (FMJ) automatic Colt pistol bullet (Winchester) (3), 5.56-mm FMJ bullet (Federal Ammunition) (4), #7 lead shotgun pellet (Winchester) (5), and 5-mm lead air gun pellet (Sheridan) (6). On all sequences, metallic artifact is minimal. Although metallic artifact increases or blooms with increased TR/TE in GRE images (D and E), amount of surrounding distortion is still minimal.

News | Magnetic Resonance Imaging (MRI) | January 15, 2021
January 15, 2021 — According to an article in ARRS’ American Journal of Roentgenology (AJR), because patients with...
Novel Coronavirus SARS-CoV-2 Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Image captured and color-enhanced at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland. Credit: National Institute of Allergy and Infectious Diseases, NIH

Novel Coronavirus SARS-CoV-2 Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Image captured and color-enhanced at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland. Image courtesy of  National Institute of Allergy and Infectious Diseases (NIH)

News | Coronavirus (COVID-19) | January 15, 2021
January 15, 2021 — In one of the first studies to examine the impact of the COVID-19 pandemic on cancer diagnoses,...
C-RAD has been selected as the partner to implement surface tracking technology for three proton cancer treatment centers in the U.S.
News | Proton Therapy | December 28, 2020
December 28, 2020 — C-RAD offers a specific version of its Catalyst System for use in proton and particle therapy -...
 Fujifilm Medical Systems U.S.A., Inc. announced today that UroPartners, the largest urology practice in Illinois and top five in the nation, has chosen to standardize on the Persona CT computed tomography (CT) system to accelerate their oncology treatment planning capabilities
News | Computed Tomography (CT) | December 17, 2020
December 17, 2020 — Fujifilm Medical Systems U.S.A., Inc. announced that UroPartners, the largest urology practice in ...
Post-neoadjuvant therapy changes in metabolic metrics from PET/MRI and morphologic metrics from CT were associated with pathologic response and overall survival in patients with pancreatic ductal adenocarcinoma

Pre-treatment (A-C) and post-treatment (D-F) images after eight cycles of systemic FOLFIRINOX and consolidative chemoradiation. Baseline CA 19-9 was 145 U/ml. Pre-treatment whole body axial fused PET/MRI showed FDG avid lesion in body of pancreas (arrow, A) with SUVmax 7.1 and SUVgluc 8.0. Lesion was hypo-enhancing on axial contrast-enhanced T1-weighted (T1W) MR image (arrow, B) from focused abdominal PET/MRI and on CT (arrow, C). Pre-treatment CT tumor volume was 10.3 cm3. Post-treatment whole body axial fused PET/MRI showed complete metabolic response (arrow D) with SUVmax 1.9 and SUVgluc 1.9. Lesion was indistinct on axial contrast-enhanced T1W MRI (arrow, E) and CT (arrow, F), and there was upstream pancreatic parenchymal atrophy. Post-treatment CT tumor volume was 0.46 cm3. There was normalization of CA 19-9. Relative change in SUVmax (ΔSUVgluc) was -73%, and relative change in SUVgluc (ΔSUVgluc) was -76%. Based on change in tumor size, response was categorized as partial response per RECIST. Relative change in tumor volume (ΔTvol) was -96%. Pathology showed major pathologic response (College of American Pathologists score 1.) Images courtesy of American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

News | PET-MRI | December 10, 2020
December 10, 2020 — According to an open-access Editor's Choice article in ARRS' American Journal of Roentgenology (AJR...
An MR image of a patient in their early 20s shows nerve injury (highlighted in yellow) of the left brachial plexus in the neck. The patient experienced left arm weakness and pain after recovering from COVID-19 respiratory illness, which prompted them to see their primary care physician. As a result of the MRI findings, the patient was referred to the COVID-19 neurology clinic for treatment. Image courtesy of Northwestern University

An MR image of a patient in their early 20s shows nerve injury (highlighted in yellow) of the left brachial plexus in the neck. The patient experienced left arm weakness and pain after recovering from COVID-19 respiratory illness, which prompted them to see their primary care physician. As a result of the MRI findings, the patient was referred to the COVID-19 neurology clinic for treatment. Image courtesy of Northwestern University

News | Coronavirus (COVID-19) | December 08, 2020
December 8, 2020 — After recovering from COVID-19, some patients are left with chronic, debilitating pain, numbness or...
Earlier initial diagnosis reduces lung cancer mortality in heavy (ex-)smokers / The risk of harm from misdiagnosis or overdiagnosis is relatively low

Image courtesy of Toshiba/Canon

News | Computed Tomography (CT) | December 08, 2020
December 8, 2020 — For heavy (ex-)smokers, lung cancer screening using low-dose computed tomography (low-dose CT, LDCT...
Approval provides access to the first and only 64-slice volumetric CT digital SPECT/CT in the market, technology for routine total body 3D imaging in nuclear medicine departments
News | SPECT-CT | December 04, 2020
December 4, 2020 — Spectrum Dynamics Medical, Inc., has received Canadian Medical Device License from Health Canada for...
The company’s ClearRead Xray Confirm (Enhanced) and ClearRead CT – breakthrough lung nodule detection applications­ – have received clearance for sale in Australia
News | Computed Tomography (CT) | December 03, 2020
December 3, 2020 — Riverain Technologies, a U.S.-based developer of artificial intelligence (AI)-powered software that...
Advanced imaging with computed tomography (CT) shows that people who cook with biomass fuels like wood are at risk of suffering considerable damage to their lungs from breathing in dangerous concentrations of pollutants and bacterial toxins, according to a study being presented at the annual meeting of the Radiological Society of North America (RSNA).

Kitchen location showing the cooking stove and wood fuels used; there is a lack of sufficient ventilation to clear the smoke by-products from biomass fuel use. Image courtesy of Radiological Society of North America

News | Computed Tomography (CT) | December 03, 2020
December 3, 2020 — Advanced imaging with computed tomography (CT) shows that people who cook with biomass fuels like...
Videos | Artificial Intelligence | December 02, 2020
Kirti Magudia, M.D., Ph.D., an abdominal imaging and ultrasound fellow at the University of California San Francisco,...
An example of a body composition analysis of an abdominal CT slice with the subcutaneous fat in green, skeletal muscle red and visceral fat in yellow. This was automatically identified and analyzed via a deep learning algorithm to assess the risk for heart attack and stroke in more than 12,000 patients. #RSNA2020 #RSNA20 #RSNA

An example of a body composition analysis of an abdominal CT slice with the subcutaneous fat in green, skeletal muscle red and visceral fat in yellow. This was automatically identified and analyzed via a deep learning algorithm to assess the risk for heart attack and stroke in more than 12,000 patients.

Feature | Artificial Intelligence | December 02, 2020
December 2, 2020 – Automated deep learning analysis of abdominal computed tomography (CT) images produces a more...
Samsung to highlight its medical imaging portfolio with its latest radiology innovations in ultrasound, digital radiography and mobile computed tomography
News | Radiology Imaging | December 02, 2020
December 2, 2020 — Samsung Electronics Co., Ltd. will showcase its premium diagnostic imaging solutions in ultrasound,...
A cut-away view of the two cabins that compose the "CT-in-a-box" solution from GE to rapidly deploy CT scanners at hospitals amid a COVID surge. The CT room is completely separate from the control room to aid in sanitation and keeping technologists away from COVID patients.

A cut-away view of the two cabins that compose the "CT-in-a-box" solution from GE to rapidly deploy CT scanners at hospitals amid a COVID surge. The CT room is completely separate from the control room to aid in sanitation and keeping technologists away from COVID patients. Image by GE Healthcare.

Feature | Coronavirus (COVID-19) | December 01, 2020
December 1, 2020 — As hospitals see an influx of COVID-19 (SARS-CoV-2) patients, many are looking for ways to rapidly...
Medical imaging artificial intelligence (AI) vendor Avicenna.AI today announced its FDA-cleared CINA Head triage AI solution will be offered by cloud-based imaging platform Arterys. Supporting the treatment of stroke and neurovascular emergencies, CINA Head detects intracranial hemorrhages (ICHs) and large vessel occlusions (LVOs) from CT-scan imaging. #RSNA20 #RSNA2020

Medical imaging artificial intelligence (AI) vendor Avicenna.AI announced its FDA-cleared CINA Head triage AI solution will be offered by cloud-based imaging platform Arterys. Supporting the treatment of stroke and neurovascular emergencies, CINA Head detects intracranial hemorrhages (ICHs) and large vessel occlusions (LVOs) from CT-scan imaging.
 

News | Stroke | December 01, 2020
December 1, 2020 – Medical imaging artificial intelligence (AI) vendor Avicenna.AI today announced its FDA-cleared CINA...