Cited by 149Advanced MRI Techniques and ApplicationsAdvanced NMR Techniques and ApplicationsAtomic and Subatomic Physics Research

Micro MRI of the mouse brain using a novel 400 MHz cryogenic quadrature RF probe

Baltes, Christof, Radzwill, Nicole, Bosshard, Simone, Marek, Daniel, Rudin, Markus·2009·NMR in Biomedicine

Abstract

The increasing number of mouse models of human disease used in biomedical research applications has led to an enhanced interest in non‐invasive imaging of mice, e.g. using MRI for phenotyping. However, MRI of small rodents puts high demands on the sensitivity of data acquisition. This requirement can be addressed by using cryogenic radio‐frequency (RF) detection devices. The aim of this work was to investigate the in vivo performance of a 400 MHz cryogenic transmit/receive RF probe (CryoProbe) designed for MRI of the mouse brain. To characterize this novel probe, MR data sets were acquired with both the CryoProbe and a matched conventional receive‐only surface coil operating at room temperature (RT) using conventional acquisition protocols (gradient and spin echo) with identical parameter settings. Quantitative comparisons in phantom and in vivo experiments revealed gains in the signal‐to‐noise ratio (SNR) of 2.4 and 2.5, respectively. The increased sensitivity of the CryoProbe was invested to enhance the image quality of high resolution structural images acquired in scan times compatible with routine operation (< 45 min). In high resolution (30 × 30 × 300 µm 3) structural images of the mouse cerebellum, anatomical details such as Purkinje cell and molecular layers could be identified. Similarly, isotropic (60 × 60 × 60 µm 3) imaging of mouse cortical and subcortical areas revealed anatomical structures smaller than 100 µm. Finally, 3D MR angiography (52 × 80 × 80 µm 3) of the brain vasculature enabled the detailed reconstruction of intracranial vessels (anterior and middle cerebral artery). In conclusion, this low temperature detection device represents an attractive option to increase the performance of small animal MR systems operating at 9.4 Tesla. Copyright © 2009 John Wiley & Sons, Ltd.

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Crossref · 10.1002/nbm.1396

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  • Previous DTI studies assessing microstructural changes in rTg4510 mice produced conflicting results.

    “Previous DTI studies assessing microstructural changes in rTg4510 mice, which express transgenic tau P301L mutations driven by a Ca 2+ / calmodulin kinase II promoter system [30,31] in the white and grey matter produced conflicting results [33][34][35][36].”
  • Effects of tauopathy on DTI metrics in grey and white matter are complex and may involve axonal damage, myelin injury, neuronal degeneration, and gliosis, which all have been found in tauopathies.

    “Effects of tauopathy on DTI metrics in the grey and white matter are complex and may involve axonal damage, myelin injury, neuronal degeneration, and gliosis, which all have been found in tauopathies [17,18,23,25,28,29,33,38,57].”

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Research works printed but not linked: 2

  1. RadzwillNI HaueisenR MarekD SacherM JungeS. Benefits of cryogenic coils for routine in‐vivo mouse brain imaging and spectroscopy at 9.4T In:Proceedings of 15th Annual Meeting ISMRM Berlin Germany Abstract: 3267 2007.
  2. AliaA KabliS GrossD MarekD OertherT SacherM SpainkHP De GrootHM. Magnetic resonance microimaging of adult zebrafish brain using cryoprobe technology. ISMRM. In:Proceedings of 15th Annual Meeting ISMRM Berlin Germany Abstract: 1056 2007.

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Authors
Baltes, C., Radzwill, N., Bosshard, S., Marek, D., & Rudin, M.
Affiliations
  • University of Zurich (CH)
  • Bruker (Switzerland) (CH)
Corresponding author
Baltes, Christof
Venue
NMR in Biomedicine
Publisher
Wiley
Published
2009-06-17
Volume
22
Issue
8
Pages
834-842
ISSN
  • 0952-3480 (ISSN-L)
  • 1099-1492
OpenAlex
W2148369313
Cited by
149
References
35
Citations by year
2026: 2 · 2025: 7 · 2024: 9 · 2023: 3 · 2022: 5 · 2021: 10 · 2020: 12 · 2019: 9 · 2018: 13 · 2017: 9 · 2016: 6 · 2015: 12 · 2014: 9 · 2013: 8 · 2012: 13
FWCI
8.00
Type
journal article
Language
en
Open access
closed
Locations
  • NMR in Biomedicine (publishedVersion)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
Funders
Swiss National Science Foundation SNF (3100A0-112835)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Physical Sciences › Chemistry › Spectroscopy › Advanced NMR Techniques and Applications
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Atomic and Subatomic Physics Research
Keywords
small animal MRI, signal-to-noise ratio, cerebellum, cerebral cortex, magnetic resonance angiography, intracranial vasculature, Purkinje cells, 9.4 Tesla
MeSH terms
Animals, Brain, Cerebrovascular Circulation, Cold Temperature, Humans, Image Enhancement, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Radio Waves, Mice

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