Impact of deep learning architectures on accelerated cardiac T1 mapping using MyoMapNet


The objective of the current study was to investigate the performance of various deep learning (DL) architectures for MyoMapNet, a DL model for T1 estimation using accelerated cardiac T1 mapping from four T1‐weighted images collected after a single inversion pulse (Look‐Locker 4 [LL4]). We implemented and tested three DL architectures for MyoMapNet (a) a fully connected neural network (FC), (b) convolutional neural networks (VGG19, ResNet50), and (c) encoder‐decoder networks with skip connections (ResUNet, U‐Net). Modified Look‐Locker inversion recovery (MOLLI) images from 749 patients at 3T were used for training, validation, and testing. The first four T1‐weighted images from MOLLI5(3)3 and/or MOLLI4(1)3(1)2 protocols were extracted to create accelerated cardiac T1 mapping data.

In Nuclear Magnetic Resonance in Biomedicine
Salah Assana
Salah Assana
Research Assistant

My research interests include signal processing, cardiology and artificial intelligence.