Dual-Source Photon-Counting Computed Tomography-Part I: Clinical Overview of Cardiac CT and Coronary CT Angiography Applications.
Filippo CademartiriAntonella MeloniLaura PistoiaGiulia DegiorgiAlberto ClementeCarmelo De GoriVincenzo PositanoSimona CeliSergio BertiMichele EmdinDaniele PanettaLuca MenichettiBruna PunzoCarlo CavaliereEduardo BossoneLuca SabaRiccardo CauLudovico La GruttaErica MaffeiPublished in: Journal of clinical medicine (2023)
The photon-counting detector (PCD) is a new computed tomography detector technology (photon-counting computed tomography, PCCT) that provides substantial benefits for cardiac and coronary artery imaging. Compared with conventional CT, PCCT has multi-energy capability, increased spatial resolution and soft tissue contrast with near-null electronic noise, reduced radiation exposure, and optimization of the use of contrast agents. This new technology promises to overcome several limitations of traditional cardiac and coronary CT angiography (CCT/CCTA) including reduction in blooming artifacts in heavy calcified coronary plaques or beam-hardening artifacts in patients with coronary stents, and a more precise assessment of the degree of stenosis and plaque characteristic thanks to its better spatial resolution. Another potential application of PCCT is the use of a double-contrast agent to characterize myocardial tissue. In this current overview of the existing PCCT literature, we describe the strengths, limitations, recent applications, and promising developments of employing PCCT technology in CCT.
Keyphrases
- image quality
- coronary artery
- computed tomography
- contrast enhanced
- coronary artery disease
- dual energy
- positron emission tomography
- left ventricular
- pulmonary artery
- magnetic resonance
- magnetic resonance imaging
- soft tissue
- monte carlo
- living cells
- systematic review
- aortic stenosis
- single molecule
- pulmonary hypertension
- air pollution
- high resolution
- ejection fraction
- atrial fibrillation