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Modifying technique cuts radiation dose for CTA
Reduced or no “padding” during ECG-triggered coronary CT angiography results in a substantial reduction in radiation dose without affecting image quality and interpretability, according to a study in the April American Journal of Roentgenology.
Reduced or no “padding” during ECG-triggered coronary CT angiography results in a substantial reduction in radiation dose without affecting image quality and interpretability, according to a study in the April American Journal of Roentgenology.
The study included 886 patients who underwent ECG-triggered coronary CTA with a padding duration of 0, 1 to 99, or 100 to 150 msec. Padding refers to the extra time added before and after the minimum time CTA must be on during each heartbeat.
Increased padding was associated with a greater radiation dose: a 45% increase per 100-msec increase in padding. No difference in image interpretability between padded and unpadded images was seen at the three sites: Weill Cornell Medical College in New York; Fairfax Radiology Associates in Fairfax, VA; and the University of British Columbia in Vancouver, BC.
Seven Takeaways from New CT and MRI Guidelines for Ovarian Cancer Staging
January 20th 2025In an update of previous guidelines from the European Society of Urogenital Radiology published in 2010, a 21-expert panel offered consensus recommendations on the utility of CT, MRI and PET-CT in the staging and follow-up imaging for patients with ovarian cancer.
CT Study Reveals Key Indicators for Angiolymphatic Invasion in Non-Small Cell Lung Cancer
January 15th 2025In computed tomography (CT) scans for patients with solid non-small cell lung cancer (NSCLC) < 30 mm, emerging research suggests the lollipop sign is associated with a greater than fourfold likelihood of angiolymphatic invasion.
