Book chapter
Generalizing MRI Subcortical Segmentation to Neurodegeneration
Machine Learning in Clinical Neuroimaging and Radiogenomics in Neuro-oncology. MLCN RNO-AI 2020 2020, Vol.12449, pp.139-147
Lecture Notes in Computer Science, vol 12449, Springer, Cham
10/2020
DOI: 10.1007/978-3-030-66843-3_14
PMCID: PMC9175926
PMID: 35695832
Abstract
Many neurodegenerative diseases like Huntington's disease (HD) affect the subcortical structures of the brain, especially the caudate and the putamen. Automated segmentation of subcortical structures from MRI scans is thus important in HD studies. LiviaNET [2] is the state-of-the-art deep learning approach for subcortical segmentation. As all learning-based models, this approach requires appropriate training data. While annotated healthy control images are relatively easy to obtain, generating such annotations for each new disease population can be prohibitively expensive. In this work, we explore LiviaNET variants using well-known strategies for improving performance, to make it more generalizable to patients with substantial neurodegeneration. Specifically, we explored Res-blocks in our convolutional neural network, and we also explored manipulating the input to the network as well as random elastic deformations for data augmentation. We tested our method on images from the PREDICT-HD dataset, which includes control and HD subjects. We trained on control subjects and tested on both controls and HD patients. Compared to the original LiviaNET, we improved the accuracy of most structures, both for controls and for HD patients. The caudate has the most pronounced improvement in HD subjects with the proposed modifications to LiviaNET, which is noteworthy since caudate is known to be severely atrophied in HD. This suggests our extensions may improve the generalization ability of LiviaNET to cohorts where significant neurodegeneration is present, without needing to be retrained.
Details
- Title: Subtitle
- Generalizing MRI Subcortical Segmentation to Neurodegeneration
- Creators
- Hao Li - Vanderbilt UniversityHuahong Zhang - Vanderbilt UniversityDewei Hu - Vanderbilt UniversityHans Johnson - University of IowaJeffrey D Long - University of IowaJane S Paulsen - University of Wisconsin–MadisonIpek Oguz - Vanderbilt University
- Resource Type
- Book chapter
- Publication Details
- Machine Learning in Clinical Neuroimaging and Radiogenomics in Neuro-oncology. MLCN RNO-AI 2020 2020, Vol.12449, pp.139-147
- Series
- Lecture Notes in Computer Science; vol 12449
- DOI
- 10.1007/978-3-030-66843-3_14
- PMID
- 35695832
- PMCID
- PMC9175926
- Publisher
- Springer, Cham
- Language
- English
- Date published
- 10/2020
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Electrical and Computer Engineering; Psychiatry; Psychological and Brain Sciences; Biostatistics; The Iowa Institute for Biomedical Imaging; The Iowa Initiative for Artificial Intelligence; Iowa Informatics Initiative
- Record Identifier
- 9984267560202771
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