Noise reduction and motion elimination in low-dose 4D myocardial computed tomography perfusion (CTP): preliminary clinical evaluation of the ASTRA4D algorithm.
Steffen LukasSarah FegerMatthias RiefElke ZimmermannMarc DeweyPublished in: European radiology (2019)
• ASTRA4D combines local temporal regression and deformable image registration. • Quantitative and qualitative measures of CTP quality are improved compared to PCA. • Improved spatiotemporal differentiation of ischemic regions leads to an excellent perfusion deficit concordance of ASTRA4D with MRI.
Keyphrases
- contrast enhanced
- computed tomography
- low dose
- magnetic resonance imaging
- deep learning
- magnetic resonance
- diffusion weighted imaging
- machine learning
- positron emission tomography
- high dose
- left ventricular
- high resolution
- air pollution
- systematic review
- ischemia reperfusion injury
- heart failure
- high speed
- quality improvement
- neural network
- image quality
- mass spectrometry