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.

Heartflow sues cardiology AI rival Cleerly over alleged patent infringement
According to Heartflow, Cleerly's actions represent “one of the most egregious examples of piracy in the medical technology industry.” Cleerly commented on the lawsuit, defending the value and integrity of its products.
Experts call for Lung-RADS updates amid concern about certain incidental findings
New findings from a large CT lung cancer screening dataset reveal that a substantial number of patients have significant incidental findings visible on their scans.
Northwestern deploys new mobile stroke unit equipped with 32-slice CT scanner
The MSU operates 365 days a year and covers 138 square miles. Hundreds of patients have been treated through the MSU, with more than 500 receiving critical care in it 2025 alone.
$Radiologist Michael Morris, MD, radiologist and director of cardiac CT and MRI at Banner Health, explains how cardiac radiology imaging is moving toward expanded use of fractional flow reserve CT (FFR-CT) and artificial intelligence analysis of coronary CT angiography (CCTA) exams as a standard of care. He spoke to Radiology Business during RSNA 2025.$
Radiology embraces FFR-CT and AI plaque analysis as cardiac imaging evolves
The specialty is moving toward expanded use of fractional flow reserve CT and AI analysis of coronary CT angiography exams as a standard of care.
FDA clears portable photon-counting CT scanner
The system is designed for point-of-care settings such as outpatient offices, sports medicine practices and urgent care clinics.

Machine learning uses CT images to predict survival odds of melanoma patients

A unique radiomic signature forecasted overall survival in patients with advanced melanoma and could be used to help providers choose specific therapies.

Wide variation in musculoskeletal imaging charges, including 74-fold difference for one CT exam

Stanford University experts analyzed price transparency data from 250 of the nation's top hospitals, sharing their work in AJR.

Simple quality improvement measures reduce problematic CT overuse for liver imaging

Updated department protocols dropped the median monthly number of abdominopelvic CTs with and without contrast from 74 scans down to 53, experts explained in Current Problems in Diagnostic Radiology.

Hospital dramatically reduces overuse of CT liver imaging with a few targeted interventions

Loma Linda University Medical Center has strengthened ties between its radiology department, hospital administration and liver transplant team to achieve its quality goals.

Deep learning decreases CT radiation dose by 65% in patients with liver metastases

Scans using a smaller dose were accurate when detecting lesions 0.5 cm or larger but more research into low-contrast lesions is still necessary, experts cautioned.

Cutting CT overuse for appendicitis: 4 factors that distinguish high-performing hospitals

The role of a “radiation reduction champion," often filled by a radiologist, is pivotal to these efforts, experts wrote in the Journal of Pediatric Surgery.

Blood test helps more accurately predict which patients would benefit from CT lung cancer screening

Researchers estimate their model would pinpoint 9% additional cases for screening while also reducing unnecessary imaging referrals by 14%.

Bolus tracking with individualized delays for abdominal multiphase CT beats fixed delay protocols

Current bolus tracking technology remains limited by the fixed delay before the start of a scan, experts explained in the European Journal of Radiology.

Computed Tomography

Heartflow sues cardiology AI rival Cleerly over alleged patent infringement

Experts call for Lung-RADS updates amid concern about certain incidental findings

Northwestern deploys new mobile stroke unit equipped with 32-slice CT scanner

Radiology embraces FFR-CT and AI plaque analysis as cardiac imaging evolves

FDA clears portable photon-counting CT scanner