Computed Tomography

Computed tomography (CT) is a fast and accurate imaging modality often used in emergency settings and trauma imaging. CT scans, with or without (or both) iodinated contrast are frequently used to image the brain, chest, abdomen and pelvis, but also have post-imaging reconstructive capabilities for detailed orthopedic imaging. It is now a standard imaging modality in emergency rooms to quickly assess patients. CT uses a series of X-ray images shot as the gantry rotates around the patient. Computer technology assembles these into into a dataset volume than can be slices on any access, or advanced visualization software can extract specific parts of the anatomy for study. Find more content specific to cardiac CT.

New AI tool outperforms humans at lung tumor segmentation
The iSeg platform has the potential to significantly improve tumor segmentation processes prior to radiation therapy treatment.
FDA issues recall on Philips spectral CT systems
A software issue could lead to the affected devices inadvertently moving, potentially making unintentional contact with patients or other equipment, according to the FDA.
How the shape, size and location of calcified carotid plaques affect stroke risk
A new analysis provides further insight into factors affecting plaque stability and subsequent ischemic events
Emergency physicians make more mistakes when interpreting imaging of multiple organs
A new analysis details the prevalence of interpretation errors in EDs, the factors that influence them and how they affect patient care.
AAA detection gets boost from commercially available AI algorithm
The opportunistic screening helps identify patients in need of monitoring and/or intervention without disrupting workflows.

Altered mental status and head CT: Study suggests the exam is overutilized at the expense of patients

The meta-analysis included 25 studies and nearly 80,000 patient cases. Experts found that while 94% of those patients with acute atraumatic AMS underwent non-contrast head CT scans, just 11% of those exams yielded positive results.

Lung CT of a 42-year-old man with more than 7 days of symptoms. Scans show COVID pneumonia with diffuse ground-glass opacities in close vicinity of visceral pleural surfaces. In addition, a crazy paving pattern is observed. Image courtesy of RSNA. Medical images of COVID. #COVID #SARS-CoV-2

'Crash course' on COVID cases benefits residents less experienced with thoracic CT

Following the course, experts observed nearly perfect agreement between less experienced residents and chest-devoted radiologists.

Dynamic lung air flow analysis just using X-ray without any contrast with new technology from 4D Medical.

PHOTO GALLERY: New technology and trends at RSNA 2022

Images from the Radiological Society of North America (RSNA) 2022 annual meeting Nov. 27- Dec. 1 in Chicago. The gallery includes new technologies and a look at sights around the world's largest radiology conference.

Experts call for reporting of all incidentally detected coronary calcifications

Experts recently found that reporting of coronary calcium is frequently limited to only moderate to severe cases.

Sunshine and rainbows and trauma: How weather can impact CT volume in EDs

This week at the annual RSNA meeting, the worlds of radiologists and meteorologists collided when researchers presented evidence of associations between certain weather conditions and patients presenting with polytrauma.

Canon to open new subsidiary, Canon Healthcare USA, in Cleveland

“The U.S. market is more and more important for our business,” the company's president and CEO said during a press conference at RSNA 2022.

Long-term lung cancer survival rates see a 'dramatic' boost thanks to early detection initiatives

When lung cancer is caught in its early stages, long-term survival rates can reach 80% and higher, according to a new large-scale, 20-year international study presented at this year's RSNA meeting.

Caught early, lung cancer has 80% overall survivability at 20 years—100% for some tumor types—yet few individuals avail themselves of LDCT screening

New findings to be presented at RSNA confirm that lung cancer is highly curable as long as it’s diagnosed early, as is often the case with low-dose CT screenings.

Computed Tomography

New AI tool outperforms humans at lung tumor segmentation

FDA issues recall on Philips spectral CT systems

How the shape, size and location of calcified carotid plaques affect stroke risk

Emergency physicians make more mistakes when interpreting imaging of multiple organs

AAA detection gets boost from commercially available AI algorithm