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.

Example of an automated artificial intelligence (AI) assessment of soft coronary plaque from a CT scan from the vendor Cleerly. The AI gives a very detailed report of all the plaque in all the coronary vessels. Some cardiology experts believe this may be the way of the future in screening patients for early coronary disease and monitoring the impact of prevention efforts such as statins to determine if more aggressive treatments are needed.

Medicare administrative contractors approve coverage of AI-enabled quantitative CT

Four of the seven Medicare Administrative Contractors (MACs) announced they will now cover artificial intelligence-enabled quantitative coronary tomography (AI-QCT) and coronary plaque analysis (AI-CPA).

Ron Blankstein, MD, Brigham and Womens Hospital, explains a study using AI opportunistic screening in non-cardiac CT scans looking for coronary artery disease.

Use of AI opportunistic screening in CT for cardiovascular disease

Ron Blankstein, MD, professor of radiology, Harvard Medical School, explains the use of artificial intelligence to detect heart disease in non-cardiac CT exams.

How a Federally Qualified Health Center quashed common barriers to lung cancer screening

Experts created new lung cancer screening pathways within CommUnityCare Health Centers—a large, diverse FQHC system in Central Texas.

Low doses of radiation still increase risk of leukemia, lymphoma and myeloma

A new study found cumulative radiation exposure of 16 mSv to red bone marrow can cause an increased rate of some hematological malignancies.

Incidental finding characteristics that warrant communication

Three factors are associated with true high-risk findings—imaging protocols for aortic valve implantation planning, imaging area, and cardiology department orders.

Left, coronary CT angiography of a vessel showing plaque heavy calcium burden. Right, image showing color code of various types of plaque morphology showing the complexity of these lesions. The right image was processed using the FDA cleared, AI-enabled plaque assessment from Elucid.

FDA clears new software for AI-powered CCTA assessments

Elucid's PlaqueIQ was trained to turn CCTA images into interactive 3D reports that help physicians visualize the presence of atherosclerosis.

Deep learning denoising produces quality trauma head CT images at 25% of the radiation dose

Denoising algorithm produces quality trauma head CTs at a fraction of the radiation dose

Radiation doses needed for quality head CT scans in trauma settings can be reduced by as much as 75% using DL-based denoising.

CTC colonography colon cancer colonoscopy

ACR concerned pay cap on CT-based colon cancer screening could make service ‘untenable’

Medicare wants to limit the technical component for the exam to the HOPPS rate, which would represent an 81% reduction to the MPFS amount of $459.92.

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