Evidence map›Paper›PMID 34558744›Full record

ArticleNMR in biomedicine2022

A time-course study of actively stained mouse brains: Diffusion tensor imaging parameters and connectomic stability over 1 year.

Jaclyn Xiao, Kathryn J Hornburg, Gary Cofer, James J Cook, Forrest Pratson, Yi Qi, G Allan Johnson

Abstract read
In one paragraph

Article in NMR in biomedicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Jaclyn XiaoDepartment of Biomedical Engineering, Duke University, Durham, North Carolina, USA.
Kathryn J HornburgDuke Center for In Vivo Microscopy, Department of Radiology, Duke University Medical Center, Durham, North Carolina, USA.ORCID 0000-0003-3851-8297
Gary CoferDuke Center for In Vivo Microscopy, Department of Radiology, Duke University Medical Center, Durham, North Carolina, USA.
James J CookDuke Center for In Vivo Microscopy, Department of Radiology, Duke University Medical Center, Durham, North Carolina, USA.
Forrest PratsonDuke Center for In Vivo Microscopy, Department of Radiology, Duke University Medical Center, Durham, North Carolina, USA.
Yi QiDuke Center for In Vivo Microscopy, Department of Radiology, Duke University Medical Center, Durham, North Carolina, USA.
G Allan JohnsonDepartment of Biomedical Engineering, Duke University, Durham, North Carolina, USA.ORCID 0000-0002-7606-5447

Funding

INTEGRATED CENTER FOR IN VIVO MICROSCOPYP41EB015897 · NIBIB · DUKE UNIVERSITY · PI JOHNSON, GEORGE ALLAN · 2012 to 2017
$7.4M
Waxholm Space for Rodent NeuroinformaticsR01NS096720 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI GEE, JAMES C · 2016 to 2019
$2.4M
Agilent Direct Drive 9.4T MRS/MRI ConsoleS10OD010683 · OD · DUKE UNIVERSITY · PI JOHNSON, GEORGE ALLAN · 2012 to 2012
$597k
NIBIB NIH HHS P41 EB015897NIH HHS S10 OD010683NINDS NIH HHS R01 NS096720
6 · The paper itself

Abstract

While the application of diffusion tensor imaging (DTI), tractography, and connectomics to fixed tissue is a common practice today, there have been limited studies examining the effects of fixation on brain microstructure over extended periods. This mouse model time-course study reports the changes of regional brain volumes and diffusion scalar parameters, such as fractional anisotropy, across 12 representative brain regions as measures of brain structural stability. The scalar DTI parameters and regional volumes were highly variable over the first 2 weeks after fixation. The same parameters were consistent over a 2-8-week window after fixation, which means confounds from tissue stability over that scanning window were minimal. Quantitative connectomes were analyzed over the same time with extension out to 1 year. While there was some change in the scalar metrics at 1 year after fixation, these changes were sufficiently small, particularly in white matter, to support reproducible connectomes over a period ranging from 2-weeks to 1-year post-fixation. These findings delineate a scanning period, during which brain volumes, diffusion scalar metrics, and connectomes are remarkably consistent.

Indexed as

ConnectomeAnimalsAnisotropyBrainDiffusion Tensor ImagingMaleMiceMice, Inbred C57BLdiffusion tensor imaging, magnetic resonance histology, time course, tissue fixation

Identifiers

PMID34558744
PMCPMC10461792

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.