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Deep learning-based prediction of kinetic parameters from myocardial perfusion MRI

Research output: Chapter in Book/Report/Conference proceedingConference paper

Cian Michael Scannell, Piet van den Bosch, Amedeo Chiribiri, Chul Joo Lee, Marcel Breeuwer, Mitko Veta

Original languageEnglish
Title of host publicationMedical Imaging with Deep Learning: MIDL 2019
Publication statusPublished - 29 Jul 2019

Documents

  • midl_paper

    midl_paper.pdf, 404 KB, application/pdf

    18/11/2019

    Final published version

    CC BY-SA

King's Authors

Abstract

The quantification of myocardial perfusion MRI has the potential to provide a fast, automated and user-independent assessment of myocardial ischaemia. However, due to the relatively high noise level and low temporal resolution of the acquired data and the complexity of the tracer-kinetic models, the model fitting can yield unreliable parameter estimates. A solution to this problem is the use of Bayesian inference which can incorporate prior knowledge and improve the reliability of the parameter estimation. This, however, uses Markov chain Monte Carlo sampling to approximate the posterior distribution of the kinetic parameters which is extremely time intensive. This work proposes training convolutional networks to directly predict the kinetic parameters from the signal-intensity curves that are trained using estimates obtained from the Bayesian inference. This allows fast estimation of the kinetic parameters with a similar performance to the Bayesian inference.

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