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.

AI model nearly halves false positive rates for lung cancer CT screenings
Reducing false positives could decrease the frequency of unnecessary procedures, lower the associated costs and also ease patient anxiety concerning CT results.
ED pivots to virtual radiology service, slashing CT turnaround times and lengths of stay
Syracuse, New York-based Upstate Medical University had previously relied on rad residents to handle initial reads, with attendings finalizing interpretation in the a.m.
Medicare proposal eliminates plan to make CT radiation-related quality measure mandatory in 2027
The measure evaluates the proportion of scans that exceed certain thresholds for image noise or radiation dose across 18 categories.
Emphysema on baseline lung cancer CT a sign of future mortality risk
“Lung cancer screening shouldn’t just be looking for nodules. That’s a small part of what we see on the CT scan.”
FDA clears GE Revolution Vibe CT scanner aimed at rapidly growing CCTA market
“FDA clearance comes at the perfect time, with guidelines being adopted clinically for cardiac CT and with positive reimbursement driving procedure growth," says Jean-Luc Procaccini, CEO, molecular imaging and CT.

Clinical decision support significantly reduces use of CT for pulmonary embolism

Across 340,000 hospital admissions, there was a 7.4% decrease in CTPA use after referrers started consulting CDS, experts write in JACR.

Non-enhancing asymmetries on contrast-enhanced mammography

Is additional imaging necessary for non-enhancing asymmetries on contrast-enhanced mammograms?

Patients with asymmetries on CEM typically are recalled for additional views, ultrasound and occasionally MRI. But the extra workup might not be necessary.

RSNA attendees through bore of the new release Philips CT 5300 scanner at RSNA 2024. Three new CT systems were released at RSNA that included numerous AI enhancements. Photo by Dave Fornell. #RSNA #RSNA24 #RSNA2024

Key takeaways from RSNA 2024 for AI, CT, MRI and the radiology staffing shortage

Several key trends were evident at the Radiological Society of North America 2024 meeting, including new CT and MR technology and evolving adoption of artificial intelligence.

Routine abdominal CTs offer insight into cardiovascular risk

During this year's RSNA meeting, providers were especially interested in how AI applications could enhance opportunistic screening capabilities.

New scoring system accurately predicts coronary risk in women

The system combines findings from SPECT myocardial perfusion imaging with lifestyle and clinical factors to predict risk of major cardiovascular events.

Abnormal CT findings increasingly common among countertop workers

Individuals who work with engineered stone countertops are increasingly being diagnosed with silicosis—a chronic lung condition that is the result of inhaling large amounts of silica dust.

New AI-enabled CT system is officially available in North America

The scanner is equipped with features aimed at addressing some of the biggest pain points of both radiologists and technologists.

Incidental interstitial lung abnormalities largely underreported

Less than half of incidental interstitial lung abnormalities on CT exams are reported

This is despite experts cautioning that these findings should be "systematically and fully assessed" due to their progressive nature.

Computed Tomography

AI model nearly halves false positive rates for lung cancer CT screenings

ED pivots to virtual radiology service, slashing CT turnaround times and lengths of stay

Medicare proposal eliminates plan to make CT radiation-related quality measure mandatory in 2027

Emphysema on baseline lung cancer CT a sign of future mortality risk

FDA clears GE Revolution Vibe CT scanner aimed at rapidly growing CCTA market