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.

Medicare opts not 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.
How to address CCTA staffing shortages
Jaime Warren, EdD, FACC, vice president of care transformation at MedAxiom, an ACC company, explains what is needed to address staffing shortages created by a 94% increase in cardiac CT volumes over the past 5 years.
Contaminated CT contrast blamed for 8 patient hospitalizations
After several radiology patients were sickened following an injection of iodinated contrast, the hospital where the incidents occurred has revealed the culprit.

Radiologists can reclaim an hour every day with AI assistance

The AI software assisted in various tasks, such as segmenting, labeling and measuring normal structures, providing an automated analysis of pulmonary, cardiac and musculoskeletal findings.

How COVID-19 made some radiologists newly nimble with workload management

During one surge, the hospital’s CT volumes spiked to 55% higher than pre-pandemic levels—no doubt due to heavy demand for advanced chest imaging.

CT scan showing lung cancer nodules with measurements of each nodule to track growth or regression from treatment. Image courtesy of RSNA

Downgrading lung nodules at 3-month follow-up 'may be problematic'

A new analysis suggests that follow-up imaging protocols for certain lung nodules identified via CT may need to be revisited.

Predicting healthcare utilization in COPD patients using CT and machine learning

Combining CT lung measurements with machine learning models to predict prognosis in COPD patients could help to lessen their reliance on emergency services.

$rib fracture broken ribs$

Advanced MSK imaging trio—CT, MR, ultrasound—justified for certain trauma patients upon incident and over time

The comprehensive approach may be warranted for patients whose musculoskeletal injuries include fractures of the costal cartilage.

VIDEO: The new role of cardiac CT in chest pain evaluation

Brian Ghoshhajra, MD, MBA, division chief, cardiovascular imaging, Massachusetts General Hospital and associate professor of radiology, Harvard Medical School, and a board member of the Society of cardiovascular Computed Tomography (SCCT), explains the rapidly expanding interest in cardiac computed tomography (CT) under the new chest pain evaluation guidelines.

Potential $1.5B effort kicks off to study low-dose radiation risks

The National Academies of Sciences, Engineering, and Medicine have released a report estimating $100 million will be needed for each of the next 15 years to learn how exposure to low doses of radiation affect human health.

An example of spectral cardiac CT being used to show iodine density in the myocardium to show perfusion deficits. Shown by Philips healthcare at ACC 2022.

VIDEO: Mitigating the contrast media shortage impact on CT imaging

Brian Ghoshhajra, MD, MBA, division chief, cardiovascular imaging, Massachusetts General Hospital and associate professor of radiology, Harvard Medical School, explains the impact of the iodine contrast shortage on computed tomography (CT) and cardiac imaging.

Computed Tomography

Medicare opts not 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

How to address CCTA staffing shortages

Contaminated CT contrast blamed for 8 patient hospitalizations