CT: Page 20

Radiologists are reading more cardiac CT exams, but not cardiac MRI
By Kate Madden Yee
Radiologists are reading more cardiac CT exams, but not cardiac MRI, according to research presented November 29 at the RSNA meeting.
December 4, 2023
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PCCT visualizes pulmonary embolism at reduced radiation dose
By Kate Madden Yee
Photon-counting CT (PCCT) effectively visualizes pulmonary embolism and reduces radiation dose by 48% compared with traditional CT.
November 30, 2023
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Mammography screening boosts lung cancer screening uptake
By Kate Madden Yee
Coordinating lung cancer and mammography screening boosts uptake of the former, according to study results delivered November 26 at the RSNA meeting.
November 28, 2023
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CT reveals marijuana, cigarette smokers at higher risk of emphysema
By Amerigo Allegretto
Chest CT images reveal that cigarette and marijuana smokers are at higher risk of developing emphysema, according to an RSNA 2023 presentation.
November 28, 2023
CT images show airway changes in a 66-year-old male marijuana and tobacco smoker with cylindrical bronchiectasis and bronchial wall thickening (arrowheads) in multiple lung lobes in a background of paraseptal and centrilobular emphysema. Image and caption courtesy of the RSNA.
AI plus CT calculates cardiothoracic ratio for high risk patients
By Liz Carey
Automated heart measurements captured from CT scans can flag people at high risk of major cardiovascular events due to cardiomegaly.
November 27, 2023
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PCCT bests conventional CT for chest imaging
By Kate Madden Yee
PCCT improves the contrast-to-noise ratio of vascular structures imaged on chest CT when compared with conventional CT and reduces radiation dose.
November 26, 2023
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CT-guided procedure shows promise for restoring smell after long COVID
By Kate Madden Yee
A CT-guided, minimally invasive procedure called a stellate ganglion block shows promise for restoring the sense of smell in patients suffering with long COVID, according to research to be presented at the upcoming RSNA meeting.
November 20, 2023
CT-guided stellate ganglion injection. Image courtesy of the RSNA.
3D CT reconstruction shows ties to malignant pulmonary nodule growth
By Amerigo Allegretto
3D reconstruction of cardiac CT images could aid in follow-up strategies for pulmonary nodule screening.
November 20, 2023
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Deep learning helps predict CTO recanalization outcomes
By Kate Madden Yee
Using a deep-learning algorithm with coronary CT angiography effectively predicts the success of percutaneous recanalization of CTO lesions.
November 15, 2023
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CT imaging increases children's blood cancer risk
By Kate Madden Yee
Children who undergo CT imaging are at increased risk of blood cancer, according to a team of investigators.
November 13, 2023
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20-year study shows that lung cancer screening boosts survival rates
By Kate Madden Yee
Diagnosing early-stage lung cancer with low-dose CT translates to a 20-year survival rate of 81%, according to a large-scale study.
November 7, 2023
(A, B) Two annual repeat low-dose CT scans in a woman who was 60 years old at baseline enrollment in 1999. At baseline enrollment, she was currently smoking and had a 30-pack-year smoking history. No nodules were identified on baseline low-dose CT scans. On the sixth annual low-dose CT scan (B), a right lower lobe solid nodule (arrow) measuring 4.5 mm in maximum diameter was identified. The nodule could be identified in retrospect on the prior annual CT scan (arrow in A), when it measured 2 mm in maximum diameter. Estimated tumor volume doubling time was 161 days. Lobectomy was performed two months later, and diagnosis of stage 1aN0M0 moderately differentiated adenocarcinoma measuring 6 mm in maximum diameter was made. Expert pathologic panel review (22) of the pathologic specimen updated the diagnosis to adenocarcinoma with mixed subtype (80% acinar, 20% bronchoalveolar carcinoma components) with 5 mm of invasion. Images and caption courtesy of the RSNA.
ACS releases updated lung cancer screening guideline
By Kate Madden Yee
The American Cancer Society (ACS) has released an updated lung cancer screening guideline.
November 1, 2023
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