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.

Is coronary heart disease on CT associated with early development of COPD?

"This awareness is important to avoid oversight of symptoms like dyspnea and vague chest discomfort, which can easily be interpreted as symptoms caused by the known disease COPD,” experts involved in the study said.

Be prepared: IV contrast media shortage could last up to 8 weeks

All formulations and concentrations of GE Healthcare’s Omnipaque (iohexol) are expected to be in short supply until mid-June due to COVID lockdowns where the contrast is manufactured.

VIDEO: Example of photo-counting cardiac CT with calcified coronaries

Siemens Healthineers showed examples at ACC 2022 of cardiac computed tomography (CT) from its new Naeotom Alpha photon-counting CT scanner cleared by the FDA in 2021.

Lung cancer risk increases with emphysema severity

Researchers analyzed a total of 21 studies that included more than 107,000 patients who had undergone CT assessments to examine associations between emphysema and lung cancer.

‘Virtual colonoscopy’ still struggling for mindshare

Two-thirds of U.S. adults eligible to get screened for colorectal cancer have recently completed an exam, but only 1.4% of them opted for CT colonography over optical colonoscopy or sigmoidoscopy.

CT colonography screening remains widely underutilized

The results of a survey completed by more than 13,000 respondents who were eligible for the cancer screening revealed that less than 2% of eligible participants underwent CTC exams.

Statin reduces risk for non-obstructive CAD patients but no significant risk reduction for aspirin

The results of a study published in Radiology: Cardiothoracic Imaging call into question the value of initiating aspirin therapy in certain instances.

Imaging shows COVID vaccines effective at warding off pulmonary embolism

Researchers have found the condition significantly less among patients who received at least two doses of a COVID vaccine.

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