Accuracy of ultra-high resolution and virtual non-calcium reconstruction algorithm for stenosis evaluation with photon-counting CT: results from a dynamic phantom study.

Emese ZsarnoczayNicola FinkU Joseph SchoepfDaniel PinosJim O'DohertyThomas AllmendingerJunia HagenauerJoseph P Griffith IiiMilán Vecsey-NagyPál Maurovich-HorvatTilman EmrichAkos Varga-Szemes

Published in: European radiology experimental (2024)

Evaluation of coronary stenosis with conventional CT is challenging at high heart rates. PC-CT allows for scanning with ECG-gated UHR and SR modes. UHR and VNCa images were compared in a dynamic phantom. UHR improves stenosis quantification up to 100 bpm. VNCa reconstruction improves stenosis evaluation up to 80 bpm.

Keyphrases

image quality
dual energy
high resolution
computed tomography
contrast enhanced
deep learning
positron emission tomography
coronary artery
coronary artery disease
magnetic resonance imaging
heart failure
mass spectrometry
heart rate variability
heart rate
monte carlo
high speed
aortic valve