Evidence map›Paper›PMID 26774615›Full record

ArticleNeuroImage2016

Trade-off between angular and spatial resolutions in in vivo fiber tractography.

Sjoerd B Vos, Murat Aksoy, Zhaoying Han, Samantha J Holdsworth, Julian Maclaren, Max A Viergever, Alexander Leemans, Roland Bammer

Abstract read
In one paragraph

Article in NeuroImage, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

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

  1. Pooled it
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  11. Whole mouse brain connectomics.The Journal of comparative neurology · 2019
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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

8 authors.

Sjoerd B VosImage Sciences Institute, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Radiology, Lucas Center, Stanford University, Stanford, CA, United States. Electronic address: sjoerdb.vos@gmail.com.
Murat AksoyDepartment of Radiology, Lucas Center, Stanford University, Stanford, CA, United States.
Zhaoying HanDepartment of Radiology, Lucas Center, Stanford University, Stanford, CA, United States.
Samantha J HoldsworthDepartment of Radiology, Lucas Center, Stanford University, Stanford, CA, United States.
Julian MaclarenDepartment of Radiology, Lucas Center, Stanford University, Stanford, CA, United States.
Max A ViergeverImage Sciences Institute, University Medical Center Utrecht, Utrecht, The Netherlands.
Alexander LeemansImage Sciences Institute, University Medical Center Utrecht, Utrecht, The Netherlands.
Roland BammerDepartment of Radiology, Lucas Center, Stanford University, Stanford, CA, United States.

Funding

Mapping the Human Connectome: Structure, Function, and HeritabilityU54MH091657 · NIMH · WASHINGTON UNIVERSITY · PI UGURBIL, KAMIL, VAN ESSEN, DAVID C · 2010 to 2014
$34.7M
X-RAY COMPATIBLE RF-COIL FOR MR IMAGINGP41RR009784 · NCRR · STANFORD UNIVERSITY · PI GLOVER, GARY H · 1995 to 2011
$15.0M
Improving SENSE MRI for Spiral and Echo-planar Imaging in StrokeR01EB002711 · NIBIB · STANFORD UNIVERSITY · PI ALBERS, GREGORY W · 2003 to 2015
$5.1M
Short Axis EPI for Diffusion Tensor MRI at High FieldR01EB008706 · NIBIB · STANFORD UNIVERSITY · PI BAMMER, ROLAND · 2008 to 2011
$2.7M
Real-Time MRI Motion Correction SystemR01EB011654 · NIBIB · STANFORD UNIVERSITY · PI ZEINEH, MICHAEL M · 2010 to 2013
$2.4M
NCRR NIH HHS P41 RR009784NIBIB NIH HHS 2R01 EB00271108NIBIB NIH HHS 5R01 EB008706NIBIB NIH HHS 5R01 EB01165402NIBIB NIH HHS R01 EB002711NIBIB NIH HHS R01 EB008706NIBIB NIH HHS R01 EB011654NIMH NIH HHS 1U54MH091657NIMH NIH HHS U54 MH091657
6 · The paper itself

Abstract

Tractography is becoming an increasingly popular method to reconstruct white matter connections in vivo. The diffusion MRI data that tractography is based on requires a high angular resolution to resolve crossing fibers whereas high spatial resolution is required to distinguish kissing from crossing fibers. However, scan time increases with increasing spatial and angular resolutions, which can become infeasible in clinical settings. Here we investigated the trade-off between spatial and angular resolutions to determine which of these factors is most worth investing scan time in. We created a unique diffusion MRI dataset with 1.0 mm isotropic resolution and a high angular resolution (100 directions) using an advanced 3D diffusion-weighted multi-slab EPI acquisition. This dataset was reconstructed to create subsets of lower angular (75, 50, and 25 directions) and lower spatial (1.5, 2.0, and 2.5 mm) resolution. Using all subsets, we investigated the effects of angular and spatial resolutions in three fiber bundles-the corticospinal tract, arcuate fasciculus and corpus callosum-by analyzing the volumetric bundle overlap and anatomical correspondence between tracts. Our results indicate that the subsets of 25 and 50 directions provided inferior tract reconstructions compared with the datasets with 75 and 100 directions. Datasets with spatial resolutions of 1.0, 1.5, and 2.0 mm were comparable, while the lowest resolution (2.5 mm) datasets had discernible inferior quality. In conclusion, we found that angular resolution appeared to be more influential than spatial resolution in improving tractography results. Spatial resolutions higher than 2.0 mm only appear to benefit multi-fiber tractography methods if this is not at the cost of decreased angular resolution.

Indexed as

BrainBrain MappingDiffusion Tensor ImagingHumansImage Processing, Computer-AssistedNerve Fibers

Identifiers

PMID26774615
PMCPMC4803623

What OpenQuestion holds

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Registered trials

None linked

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.