CT: Page 7

ALA report: LCS rates more than tripled between 2023 and 2024

By Kate Madden Yee

The ALA 2024 State of Lung Cancer report showed an increase in national lung cancer screening (LCS) rates from 4.5% in 2023 to 16% in 2024.

April 3, 2025

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Can use of other cancer screening tests boost uptake of LCS?

By Kate Madden Yee

Could the use of preventive health tests such as breast and colorectal cancer screening boost uptake of lung cancer screening (LCS) with low-dose CT?

April 2, 2025

AI identifies women at higher risk of MACE

An AI tool designed for coronary CT angiography can identify women at high risk for major adverse cardiovascular events (MACE).

March 31, 2025

CAC score of 0 indicate low heart event risk, even in older people

By Kate Madden Yee

PET/CT imaging indicates that a coronary artery calcium (CAC) score of 0 is an accurate indicator of low coronary heart event risk even as a person ages, investigators have reported.

March 29, 2025

Thoracic aortic calcification data could help predict CAC risk

By Kate Madden Yee

Adding thoracic aortic calcification data to coronary artery calcification (CAC) models shows promise as a risk prediction biomarker for CAC in asymptomatic patients undergoing chest CT.

March 27, 2025

Representative examples of visual TAC categories, assessed on chest CT in asymptomatic individuals undergoing general health screening (blue indicates segmented TAC at level of aortic arch). Axial (A) and sagittal volume-rendered (B) images in 42-year-old patient. AI-based quantification yielded TAC volume of 101 mm3 and TAC Agatston score of 105. Examination was assessed as showing visually mild TAC. Axial (C) and sagittal volume-rendered (D) images in 57-year-old patient. AI-based quantification yielded TAC volume of 834 mm3 and TAC Agatston score of 993. Examination was assessed as showing visually moderate TAC. Axial (E) and sagittal volume-rendered (F) images in 65-year-old patient. AI-based quantification yielded TAC volume of 4872 mm3 and TAC Agatston score of 5848. Examination was assessed as showing visually severe TAC. Images and caption courtesy of the AJR.

Nociceptive responses to contrast CT aren't necessarily pathology

By Kate Madden Yee

Nociceptive responses to contrast CT imaging such as intense warmth, urinary urgency, a metallic taste, dry mouth, and mild discomfort or pain aren't necessarily indicators of adverse contrast reactions.

March 26, 2025

Contrast Injector

CT reveals autoimmune features linked to indeterminate pneumonia

By Kate Madden Yee

CT sheds light on autoimmune features associated with idiopathic pulmonary fibrosis and usual interstitial pneumonia.

March 25, 2025

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AAPM: CMS measure for reporting CT radiation dose riddled with 'ambiguities'

By Kate Madden Yee

Radiation dose and image quality performance measures for CT imaging accepted by the U.S. Centers for Medicare and Medicaid Services (CMS) in 2023 are "ambiguous" and need to be reconsidered, according to the AAPM.

March 25, 2025

2021 LCS guidelines increased uptake, but disparities persist

By Kate Madden Yee

Updated guidelines for lung cancer screening from the USPSTF in 2021 increased adherence, but disparities persist among particular patient populations.

March 20, 2025

Adherence to LCS decreases after baseline screening

By Kate Madden Yee

Adherence to lung cancer screening (LCS) with low-dose CT (LDCT) decreases after baseline imaging, according to a new study.

March 19, 2025

PCCT proves effective for estimating liver fat fraction

By Kate Madden Yee

Photon-counting CT (PCCT) is effective and accurate for estimating liver fat fraction.

March 18, 2025

Ultralow-dose CT identifies pneumonia in immunocompromised patients

By Kate Madden Yee

Ultralow-dose CT images "denoised" by an AI algorithm can effectively diagnose pneumonia in patients with weakened immune systems.

March 13, 2025

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