Fast predictive simple geodesic regression

The Alzheimer's Disease Neuroimaging Initiative

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Deformable image registration and regression are important tasks in medical image analysis. However, they are computationally expensive, especially when analyzing large-scale datasets that contain thousands of images. Hence, cluster computing is typically used, making the approaches dependent on such computational infrastructure. Even larger computational resources are required as study sizes increase. This limits the use of deformable image registration and regression for clinical applications and as component algorithms for other image analysis approaches. We therefore propose using a fast predictive approach to perform image registrations. In particular, we employ these fast registration predictions to approximate a simplified geodesic regression model to capture longitudinal brain changes. The resulting method is orders of magnitude faster than the standard optimization-based regression model and hence facilitates large-scale analysis on a single graphics processing unit (GPU). We evaluate our results on 3D brain magnetic resonance images (MRI) from the ADNI datasets.

Original languageEnglish
Pages (from-to)193-209
Number of pages17
JournalMedical Image Analysis
Volume56
DOIs
StatePublished - Aug 2019
Externally publishedYes

Keywords

  • ADNI dataset
  • Fast prediction
  • Image regression
  • Longitudinal data

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