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Use of head CT scans in ERs more than doubles over 15 years

Written by | 29 Nov 2025

A new study shows large increases in the use of computed tomography (CT) scans of the head in emergency departments across the United States from 2007 to 2022…. read more.

Popular CT scans could account for 5% of all cancer cases a year

Written by | 20 Apr 2025

Radiation from imaging could lead to lung, breast and other future cancers, with 10-fold increased risk for babies CT scans may account for 5% of all cancers annually,… read more.

CT scans for lung cancer show potential for detecting elevated coronary artery calcium

Written by | 7 Dec 2024

Lung cancer screening with low-dose chest computed tomography (CT) has the potential to detect coronary artery calcium too, researchers reported on Dec. 2, 2024 in the CMAJ (Canadian Medical Association… read more.

Lung cancer screening CTs find coronary artery disease in 83% of cases

Written by | 3 Dec 2024

Lung cancer screening with low-dose chest computed tomography (CT) may detect more than just lung cancer. As new research in CMAJ (Canadian Medical Association Journal) https://www.cmaj.ca/lookup/doi/10.1503/cmaj.231602 shows, these CTs can identify coronary… read more.

CT health screening can identify diabetes risk

Written by | 10 Aug 2024

Analysis of CT scans in people who undergo imaging for health screening can identify individuals at risk of type 2 diabetes, according to a study published today in Radiology,… read more.

CT scan is most effective to assess people with chest pain

Written by | 3 Feb 2024

Previous studies have found less than 40% of patients with stable chest pain undergoing invasive coronary angiography are found to have obstructive coronary artery disease. Recent randomized clinical… read more.

New rule for emergency departments to safely reduce use of CTs after falls in older patients

Written by | 6 Dec 2023

How do emergency department staff determine whether older adults who have fallen need imaging? A new decision rule will help emergency department physicians determine which older adults need… read more.

Detector advance could lead to cheaper, easier medical scans

Written by | 28 Nov 2021

Researchers in the U.S. and Japan have demonstrated the first experimental cross-sectional medical image that doesn’t require tomography, a mathematical process used to reconstruct images in CT and… read more.

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