Ultra-High-Resolution and K-Edge Imaging of Prosthetic Heart Valves With Spectral Photon-Counting CT: A Phantom Study.
Sara BoccaliniCharles MayardHugo LacombeMarjorie VillienSalim Si-MohamedFrançois DelahayeLoic BousselRicardo P J BuddeMatteo PozziPhilippe DouekPublished in: Investigative radiology (2024)
With PCD-CT, objective and subjective image quality of metallic and biological PHVs is improved compared with DEDL-CT. Notwithstanding the improvements in image quality, millimetric lesions attached to the structure of the valves remain a challenge for PCD-CT. Tungsten K-edge imaging allows for even further reduction of artifacts.
Keyphrases
- image quality
- high resolution
- dual energy
- computed tomography
- aortic valve
- heart failure
- mass spectrometry
- aortic valve replacement
- magnetic resonance imaging
- optical coherence tomography
- positron emission tomography
- physical activity
- coronary artery disease
- photodynamic therapy
- depressive symptoms
- transcatheter aortic valve implantation
- single molecule