Recursive multiresolution convolutional neural networks for 3D aortic valve annulus planimetry

International Journal of Computer Assisted Radiology and Surgery
Pascal Theriault-LauzierNicolo Piazza

Abstract

Transcatheter aortic valve replacement (TAVR) is the standard of care in a large population of patients with severe symptomatic aortic valve stenosis. The sizing of TAVR devices is done from ECG-gated CT angiographic image volumes. The most crucial step of the analysis is the determination of the aortic valve annular plane. In this paper, we present a fully tridimensional recursive multiresolution convolutional neural network (CNN) to infer the location and orientation of the aortic valve annular plane. We manually labeled 1007 ECG-gated CT volumes from 94 patients with severe degenerative aortic valve stenosis. The algorithm was implemented and trained using the TensorFlow framework (Google LLC, USA). We performed K-fold cross-validation with K = 9 groups such that CT volumes from a given patient are assigned to only one group. We achieved an average out-of-plane localization error of (0.7 ± 0.6) mm for the training dataset and of (0.9 ± 0.8) mm for the evaluation dataset, which is on par with other published methods and clinically insignificant. The angular orientation error was (3.9 ± 2.3)° for the training dataset and (6.4 ± 4.0)° for the evaluation dataset. For the evaluation dataset, 84.6% of evaluation image volumes had ...Continue Reading

References

Aug 30, 2008·IEEE Transactions on Medical Imaging·Olivier EcabertJürgen Weese
Aug 1, 2008·Circulation. Cardiovascular Interventions·Nicoló PiazzaRobert H Anderson
May 6, 2010·IEEE Transactions on Medical Imaging·Razvan Ioan IonasecDorin Comaniciu
Sep 8, 2012·IEEE Transactions on Medical Imaging·Yefeng ZhengDorin Comaniciu
May 23, 2014·European Radiology·Annika SchuhbaeckMartin Arnold
Jun 7, 2014·Medical & Biological Engineering & Computing·M A ElattarH A Marquering
Oct 27, 2015·The International Journal of Cardiovascular Imaging·Mustafa ElattarHenk Marquering
Mar 16, 2016·IEEE Transactions on Medical Imaging·Nima Tajbakhsh Jianming Liang
Aug 25, 2016·International Journal for Numerical Methods in Biomedical Engineering·Liang LiangWei Sun
Apr 11, 2017·Annals of Cardiac Anaesthesia·Jelliffe JeganathanFeroze Mahmood
May 31, 2019·Journal of Digital Imaging·Mohammad Hesam HesamianPaul Kennedy
Nov 30, 2019·Journal of Interventional Cardiology·Patricio AstudilloJoni Dambre

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