testing bard

Wayne ForrestCynthia E. Keen

Jun 19, 2001

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Schematic diagrams and representative images of different distribution patterns of region lymph nodes detected at CT. (A) Vascular distribution pattern: All regional lymph nodes detected at CT have regular borders and are distributed along the vessels (arrowheads). (B-E) Coronal CT images in a (B) 34-year-old woman, (C) 51-year-old man, (D) 37-year-old man, and (E) 40-year-old man with microsatellite instability-high (MSI-H) colon cancer show multiple clear lymph nodes distributed along the supplying arteries or draining veins (arrowheads). (F) Jammed cluster pattern: At least three lymph nodes with blurred margins and clustered (circle). (G-I) Coronal CT images in a (G) 29-year-old man, (H) 35-year-old man, and (I) 67-year-old man and (J) axial CT image in a 43-year-old man with MSI-H colon cancer show several lymph nodes with blurred margins and clustered (circle). Movies 1-4 provide more details. (K) Fused pattern: Several poorly defined lymph nodes clustered and fused together (arrow). (L-O) Coronal CT images in a (L) 63-year-old woman, (M) 59-year-old man, (N) 49-year-old woman, and (O) 73-year-old man with MSI-H colon cancers show several lymph nodes fused (arrow). Image courtesy of Radiology.

CT effective for tracking colon cancer lymph node distribution

April 8, 2025

China limits exports of rare earth elements, targets CT x-ray tubes

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Watch how the NAEOTOM Alpha class was brought to life

Watch how the NAEOTOM Alpha class was brought to life

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Ct Lung Damage Covid

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

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CT effective for tracking colon cancer lymph node distribution

By Kate Madden Yee

Using CT to track lymph node distribution in colon cancer patients is more effective at identifying metastasis than conventional testing.

April 8, 2025

Schematic diagrams and representative images of different distribution patterns of region lymph nodes detected at CT. (A) Vascular distribution pattern: All regional lymph nodes detected at CT have regular borders and are distributed along the vessels (arrowheads). (B-E) Coronal CT images in a (B) 34-year-old woman, (C) 51-year-old man, (D) 37-year-old man, and (E) 40-year-old man with microsatellite instability-high (MSI-H) colon cancer show multiple clear lymph nodes distributed along the supplying arteries or draining veins (arrowheads). (F) Jammed cluster pattern: At least three lymph nodes with blurred margins and clustered (circle). (G-I) Coronal CT images in a (G) 29-year-old man, (H) 35-year-old man, and (I) 67-year-old man and (J) axial CT image in a 43-year-old man with MSI-H colon cancer show several lymph nodes with blurred margins and clustered (circle). Movies 1-4 provide more details. (K) Fused pattern: Several poorly defined lymph nodes clustered and fused together (arrow). (L-O) Coronal CT images in a (L) 63-year-old woman, (M) 59-year-old man, (N) 49-year-old woman, and (O) 73-year-old man with MSI-H colon cancers show several lymph nodes fused (arrow). Image courtesy of Radiology.

China limits exports of rare earth elements, targets CT x-ray tubes

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China's Ministry of Commerce has announced export controls for several rare earth elements and launched investigations of imported CT x-ray tubes.

April 4, 2025

Elevated liver fat fraction helps predict MACE in diabetic patients

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Elevated liver fat fraction could be a prognostic factor for major adverse cardiovascular events (MACE) in patients with type 2 diabetes.

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

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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

Ct Lung Damage Covid

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

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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?

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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).

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

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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.

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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.

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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

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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.

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Contrast Injector

CT reveals autoimmune features linked to indeterminate pneumonia

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

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2025 03 25 Radiology Park Image3 Thumbnail

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

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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

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

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