Zoomorphology

, Volume 130, Issue 4, pp 227–254

Application of magnetic resonance imaging in zoology

  • Alexander Ziegler
  • Martin Kunth
  • Susanne Mueller
  • Christian Bock
  • Rolf Pohmann
  • Leif Schröder
  • Cornelius Faber
  • Gonzalo Giribet
Review Article

DOI: 10.1007/s00435-011-0138-8

Cite this article as:
Ziegler, A., Kunth, M., Mueller, S. et al. Zoomorphology (2011) 130: 227. doi:10.1007/s00435-011-0138-8

Abstract

Magnetic resonance imaging (MRI) is a noninvasive imaging technique that today constitutes one of the main pillars of preclinical and clinical imaging. MRI’s capacity to depict soft tissue in whole specimens ex vivo as well as in vivo, achievable voxel resolutions well below (100 μm)3, and the absence of ionizing radiation have resulted in the broad application of this technique both in human diagnostics and studies involving small animal model organisms. Unfortunately, MRI systems are expensive devices and have so far only sporadically been used to resolve questions in zoology and in particular in zoomorphology. However, the results from two recent studies involving systematic scanning of representative species from a vertebrate group (fishes) as well as an invertebrate taxon (sea urchins) suggest that MRI could in fact be used more widely in zoology. Using novel image data derived from representative species of numerous higher metazoan clades in combination with a comprehensive literature survey, we review and evaluate the potential of MRI for systematic taxon scanning. According to our results, numerous animal groups are suitable for systematic MRI scanning, among them various cnidarian and arthropod taxa, brachiopods, various molluscan taxa, echinoderms, as well as all vertebrate clades. However, various phyla in their entirety cannot be considered suitable for this approach mainly due to their small size (e.g., Kinorhyncha) or their unfavorable shape (e.g., Nematomorpha), while other taxa are prone to produce artifacts associated either with their biology (e.g., Echiura) or their anatomy (e.g., Polyplacophora). In order to initiate further uses of MRI in zoology, we outline the principles underlying various applications of this technique such as the use of contrast agents, in vivo MRI, functional MRI, as well as magnetic resonance spectroscopy. Finally, we discuss how future technical developments might shape the use of MRI for the study of zoological specimens.

Keywords

MRI High-throughput Noninvasive Metazoa Three-dimensional NMR 

Abbreviations

2D

Two-dimensional

3D

Three-dimensional

BBB

Blood–brain barrier

BOLD

Blood oxygenation level-dependent

CA

Contrast agent

cLSM

Confocal laser scanning microscopy

CSI

Chemical shift imaging

CT

Computed tomography

DTI

Diffusion tensor imaging

DWI

Diffusion-weighted imaging

FLASH

Fast low-angle shot

FMNH

Field Museum of Natural History

fMRI

Functional magnetic resonance imaging

FOV

Field of view

FR

RARE factor

FSPGR

Fast spoiled gradient echo

MEMRI

Manganese-enhanced magnetic resonance imaging

MR

Magnetic resonance

MRI

Magnetic resonance imaging

MRS

Magnetic resonance spectroscopy

NA

Average number

NMR

Nuclear magnetic resonance

OPT

Optical projection tomography

PET

Positron emission tomography

RARE

Rapid acquisition with relaxation enhancement

SE

Spin echo

SIO

Scripps Institution of Oceanography

SNR

Signal-to-noise ratio

TA

Acquisition time

TE

Echo time

TR

Repetition time

TSE

Turbo spin echo

μCT

Micro-computed tomography

ZMB

Zoologisches Museum Berlin

ZMH

Zoologisches Museum Hamburg

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Alexander Ziegler
    • 1
  • Martin Kunth
    • 2
  • Susanne Mueller
    • 3
  • Christian Bock
    • 4
  • Rolf Pohmann
    • 5
  • Leif Schröder
    • 2
  • Cornelius Faber
    • 6
  • Gonzalo Giribet
    • 1
  1. 1.Museum of Comparative Zoology, Department of Organismic and Evolutionary BiologyHarvard UniversityCambridgeUSA
  2. 2.Leibniz-Institut für Molekulare PharmakologieBerlinGermany
  3. 3.Centrum für SchlaganfallforschungCharité-Universitätsmedizin BerlinBerlinGermany
  4. 4.Alfred-Wegener-Institut für Polar- und MeeresforschungBremerhavenGermany
  5. 5.Max-Planck-Institut für Biologische KybernetikTübingenGermany
  6. 6.Institut für Klinische RadiologieUniversitätsklinikum MünsterMünsterGermany