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.

Reimbursement expected to drive implementation of CCTA, coronary plaque analysis
For years, imaging experts have predicted that CCTA may become the primary imaging modality for coronary artery disease and eliminate the need for invasive diagnostic catheterizations. That prediction is now coming true.
Targeting women eligible for both lung and breast cancer screening pays off
“There is enormous potential here, and the [American Cancer Society] is thrilled with the outcome of this study," one investigators says.
Experts call for more judicious use of contrast, highlighting environmental concerns
New data highlight the significant burden contrast media use places on the environment, prompting experts to call for more stringent use of these agents.
Reimbursement for AI-based plaque assessments is improving
A growing number of private insurers are now covering these advanced technologies. Roosha Parikh, MD, told Cardiovascular Business that the hard work of SCCT and other groups has helped make this happen.
AI helps experts 'see' stress on routine CT scans
It has been well established that chronic stress can affect an individual both physically and psychologically but measuring its impact objectively has remained a challenge.

Jorge Soto, MD, chair of the RSNA Annual Meeting Program Planning Committee, chief of radiology, Boston Medical Center, and professor of medicine, Boston University School of Medicine, offers an overview of the trends, hot topics, and innovative research and technology at the Radiological Society of North America (RSNA) 2022 meeting.

VIDEO: Key takeaways from RSNA 2022

Jorge Soto, MD, chair of the RSNA Annual Meeting Program Planning Committee, chief of radiology, Boston Medical Center, offers an overview of the trends, hot topics, research and technology at the Radiological Society of North America (RSNA) 2022 meeting.

Patient with severe, lung damage from COVID. Images in a 54-year-old man with COVID-19–related acute respiratory distress syndrome and subsequent fibrosis. (A) Axial CT 2 weeks after admission shows diffuse ground-glass opacity (GGO) with reticular abnormality and traction bronchiectasis in right middle lobe, indicating organizing phase of lung injury. (B) Axial CT 6 months after admission shows decreased GGO but extensive traction bronchiectasis and architectural distortion, suggesting fibrosis. RSNA

Lung scarring occurs in up to 11% of patients recovered from COVID, regardless of infection severity

Researchers cannot yet determine whether these changes will progress or resolve in the long term.

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.

Computed Tomography

Reimbursement expected to drive implementation of CCTA, coronary plaque analysis

Targeting women eligible for both lung and breast cancer screening pays off

Experts call for more judicious use of contrast, highlighting environmental concerns

Reimbursement for AI-based plaque assessments is improving

AI helps experts 'see' stress on routine CT scans