Photon-counting Detector CT in Patients Pre- and Post-Transcatheter Aortic Valve Replacement.
Judith van der BieSimran P SharmaMarcel van StratenDaniel BosAlexander HirschMarcel L DijkshoornRik AdrichemNicolas M D A van MieghemRicardo P J BuddePublished in: Radiology. Cardiothoracic imaging (2023)
Photon-counting detector CT (PCD CT) has increasingly garnered interest in cardiothoracic imaging due to its high spatial resolution and ability to perform spectral imaging. CT plays an important role in the planning and postprocedural assessment of transcatheter aortic valve replacement (TAVR). Limitations of current CT technology resulting in blooming and metal artifacts may be addressed with PCD CT. This case series demonstrates the potential advantages of PCD CT in patients prior to and post-TAVR. In TAVR planning, PCD CT allowed for a detailed depiction of the aortic valve, aortic root, coronary arteries, and potential vascular access routes. The high-spatial-resolution reconstructions enabled assessment of hypoattenuating leaflet thickening and periprosthetic leakage for prosthetic valves. This study shows promising initial results, but further research is needed to determine the clinical impact of PCD CT in patients prior to and post-TAVR. Keywords: Transcatheter Aortic Valve Replacement, Cardiac, Coronary Arteries, Heart, Valves, Photon-counting Detector CT © RSNA, 2023.
Keyphrases
- aortic valve
- transcatheter aortic valve replacement
- image quality
- aortic stenosis
- dual energy
- aortic valve replacement
- ejection fraction
- transcatheter aortic valve implantation
- computed tomography
- contrast enhanced
- end stage renal disease
- chronic kidney disease
- positron emission tomography
- magnetic resonance imaging
- newly diagnosed
- heart failure
- pulmonary artery
- climate change
- coronary artery
- atrial fibrillation
- optical coherence tomography
- fluorescence imaging
- pet ct
- monte carlo
- total knee arthroplasty
- pulmonary hypertension
- living cells