학술논문

Machine Learning for Large-Scale Quality Control of 3D Shape Models in Neuroimaging.
Document Type
article
Source
Machine learning in medical imaging. MLMI (Workshop). 10541
Subject
machine learning
quality control
shape analysis
Shape analysis
Machine learning
Quality control
q-bio.QM
Information and Computing Sciences
Artificial Intelligence & Image Processing
Language
Abstract
As very large studies of complex neuroimaging phenotypes become more common, human quality assessment of MRI-derived data remains one of the last major bottlenecks. Few attempts have so far been made to address this issue with machine learning. In this work, we optimize predictive models of quality for meshes representing deep brain structure shapes. We use standard vertex-wise and global shape features computed homologously across 19 cohorts and over 7500 human-rated subjects, training kernelized Support Vector Machine and Gradient Boosted Decision Trees classifiers to detect meshes of failing quality. Our models generalize across datasets and diseases, reducing human workload by 30-70%, or equivalently hundreds of human rater hours for datasets of comparable size, with recall rates approaching inter-rater reliability.