Accuracy of image registration between MRI and light microscopy in the ex vivo brain

Ann Choe, Yurui Gao, Xia Li, Keegan B. Compton, Iwona Stepniewska, Adam W. Anderson

Research output: Contribution to journalArticle

Abstract

A multistep procedure was developed to register magnetic resonance imaging (MRI) and histological data from the same sample in the light microscopy image space, with the ultimate goal of allowing quantitative comparisons of the two datasets. The fixed brain of an owl monkey was used to develop and test the procedure. In addition to the MRI and histological data, photographic images of the brain tissue block acquired during sectioning were assembled into a blockface volume to provide an intermediate step for the overall registration process. The MR volume was first registered to the blockface volume using a combination of linear and nonlinear registration, and two dimensional (2D) blockface sections were registered to corresponding myelin-stained sections using a combination of linear and nonlinear registration. Before this 2D registration, two major types of tissue distortions were corrected: tissue tearing and independent movement of different parts of the brain, both introduced during histological processing of the sections. The correction procedure utilized a 2D method to close tissue tears and a multiple iterative closest point (ICP) algorithm to reposition separate pieces of tissue in the image. The accuracy of the overall MR to micrograph registration procedure was assessed by measuring the distance between registered landmarks chosen in the MR image space and the corresponding landmarks chosen in the micrograph space. The average error distance of the MR data registered to micrograph data was 0.324±0.277 mm, only 8% larger than the width of the MRI voxel (0.3 mm).

Original languageEnglish (US)
Pages (from-to)683-692
Number of pages10
JournalMagnetic Resonance Imaging
Volume29
Issue number5
DOIs
StatePublished - Jun 2011
Externally publishedYes

Fingerprint

Image registration
Magnetic resonance
Optical microscopy
Brain
Magnetic Resonance Imaging
Tissue
Imaging techniques
Light
Aotidae
Myelin Sheath
Microscopy
Intravital Microscopy
Processing

Keywords

  • Brain
  • Image registration
  • Light microscopy

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging
  • Biomedical Engineering

Cite this

Accuracy of image registration between MRI and light microscopy in the ex vivo brain. / Choe, Ann; Gao, Yurui; Li, Xia; Compton, Keegan B.; Stepniewska, Iwona; Anderson, Adam W.

In: Magnetic Resonance Imaging, Vol. 29, No. 5, 06.2011, p. 683-692.

Research output: Contribution to journalArticle

Choe, Ann ; Gao, Yurui ; Li, Xia ; Compton, Keegan B. ; Stepniewska, Iwona ; Anderson, Adam W. / Accuracy of image registration between MRI and light microscopy in the ex vivo brain. In: Magnetic Resonance Imaging. 2011 ; Vol. 29, No. 5. pp. 683-692.
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