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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.
Study Reveals Benefits of Photon-Counting CT for Assessing Acute Pulmonary Embolism
April 23rd 2024In comparison to energy-integrating detector CT for the workup of suspected acute pulmonary embolism, the use of photon-counting detector CT reduced radiation dosing by 48 percent, according to newly published research.
AI Adjudication Bolsters Chest CT Assessment of Lung Adenocarcinoma
April 11th 2024The inclusion of simulated adjudication for resolving discordant nodule classifications in a deep learning model for assessing lung adenocarcinoma on chest CT resulted in a 12 percent increase in sensitivity rate.
