Coronary calcium scoring on virtual non-contrast and virtual non-iodine reconstructions compared to true non-contrast images using photon-counting computed tomography.
Simran P SharmaJudith van der BieMarcel van StratenAlexander HirschDaniel BosMarcel L DijkshoornRonald BooijRicardo P J BuddePublished in: European radiology (2023)
• Photon-counting computed tomography uses spectral information to virtually remove the signal of contrast agents from contrast-enhanced scans. • Virtual non-contrast reconstructions tend to underestimate coronary artery calcium scores compared to true non-contrast images, while virtual non-iodine reconstructions tend to overestimate the calcium scores. • Virtual non-iodine reconstructions might obviate the need for non-contrast enhanced calcium scoring, but optimization is necessary for the clinical implementation of the algorithms.
Keyphrases
- contrast enhanced
- dual energy
- computed tomography
- image quality
- diffusion weighted
- magnetic resonance imaging
- magnetic resonance
- coronary artery
- diffusion weighted imaging
- positron emission tomography
- deep learning
- optical coherence tomography
- healthcare
- convolutional neural network
- coronary artery disease
- heart failure
- quality improvement
- left ventricular
- ejection fraction
- transcatheter aortic valve replacement