The effect of high count rates on cardiac perfusion quantification in a simultaneous PET-MR system using a cardiac perfusion phantom.
Jim O'DohertyZacharias ChalampalakisPaul SchleyerMuhummad Sohaib NazirAmedeo ChiribiriPaul K MarsdenPublished in: EJNMMI physics (2017)
Care should be taken to avoid high count-rate losses in simultaneous PET-MRI studies. Based on our results in phantoms, bias in reconstructed images should be avoided by adhering to a singles rate lower than 64.9 Mcps on the mMR system. Quantification of perfusion values using singles rates higher than 64.9 Mcps on this system may be compromised and should be avoided.
Keyphrases
- contrast enhanced
- computed tomography
- magnetic resonance imaging
- magnetic resonance
- positron emission tomography
- left ventricular
- pet ct
- diffusion weighted imaging
- healthcare
- palliative care
- pet imaging
- peripheral blood
- deep learning
- dual energy
- quality improvement
- convolutional neural network
- pain management
- case control