A new method to quantify fiber orientation similarity in registered volumes

James Dormer, Rong Jiang, Mary B. Wagner, Baowei Fei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Differences in fiber orientations between registered image volumes can be difficult to quantify. Angular errors between diffusion tensor imaging (DTI) volumes are often a combination of image registration errors and fluctuations of diffusion values that are used to determine the fiber orientations. In order to properly quantify the similarity between two images containing fiber orientation information, both displacement and angular fluctuation should be considered. We present a method to quantify fiber orientation similarity between registered images by allowing small pixel displacements in conjunction with minor angle differences. Adjustments to the allowed pixel displacement and degree of angle difference can help identify the major factor contributing to the error of fiber angles. The proposed method can provide a new metric for the evaluation of the fiber orientation difference.

Original languageEnglish (US)
Title of host publicationMedical Imaging 2017
Subtitle of host publicationImage Perception, Observer Performance, and Technology Assessment
EditorsRobert M. Nishikawa, Matthew A. Kupinski
PublisherSPIE
ISBN (Electronic)9781510607170
DOIs
StatePublished - 2017
Externally publishedYes
EventMedical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment - Orlando, United States
Duration: Feb 12 2017Feb 13 2017

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume10136
ISSN (Print)1605-7422

Conference

ConferenceMedical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment
CountryUnited States
CityOrlando
Period2/12/172/13/17

Keywords

  • Cardiac fiber
  • Fiber orientation
  • Gamma calculation
  • Image registration
  • Magnetic resonance diffusion tensor imaging (MR-DTI)
  • Similarity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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