Evidence map›Paper›PMID 29374387›Full record

ArticleInsights into imaging2018

Delineation of two intracranial areas and the perpendicular intracranial width is sufficient for intracranial volume estimation.

Niklas Klasson, Erik Olsson, Carl Eckerström, Helge Malmgren, Anders Wallin

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Insights into imaging, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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

What it found

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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

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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

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

5 authors.

Niklas KlassonInstitute of Psychiatry and Neurochemistry, Department of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Wallinsgatan 6, Box 400, 405 30, Gothenburg, Sweden. niklas.klasson@neuro.gu.se.ORCID http://orcid.org/0000-0003-2705-7122
Erik OlssonInstitute of Medicine, Department of Internal Medicine and Clinical Nutrition, The Sahlgrenska Academy, University of Gothenburg, Box 400, 405 30, Gothenburg, Sweden.
Carl EckerströmInstitute of Psychiatry and Neurochemistry, Department of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Wallinsgatan 6, Box 400, 405 30, Gothenburg, Sweden.
Helge MalmgrenInstitute of Medicine, Department of Internal Medicine and Clinical Nutrition, The Sahlgrenska Academy, University of Gothenburg, Box 400, 405 30, Gothenburg, Sweden.
Anders WallinInstitute of Psychiatry and Neurochemistry, Department of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Wallinsgatan 6, Box 400, 405 30, Gothenburg, Sweden.

Funding

Stiftelsen Handlanden Hjalmar Svenssons HJSV2012032Stiftelsen Handlanden Hjalmar Svenssons HJSV201348Stiftelserna Wilhelm och Martina Lundgrens vet1-284/2013
6 · The paper itself

Abstract

objectivesThe aim of the present study is to determine if the delineation of one or two optimally chosen intracranial areas (ICA) is enough to achieve adequate estimates of intracranial volume (ICV) in magnetic resonance imaging.

methodsThe correlations of 62 fully delineated ICVs with four types of ICV estimates were calculated. The estimate types were: (1) a single midsagittal ICA, (2) single ICA multiplied by the intracranial width perpendicular to the ICA, (3) sum of two ICAs multiplied by the perpendicular intracranial width and (4) shape-preserving piecewise cubic interpolation using two ICAs. For methods 2-4, the fully delineated ICVs were randomly separated into an evaluation and a validation set of equal size. Method 1 was validated against all of the fully delineated ICVs.

resultsEstimates from method 1 had a Pearson correlation of 0.904 with fully delineated ICV. For method 2, the correlation was 0.986 when delineating the sagittal ICA at 31% of the sagittal intracranial width. For methods 3 and 4, the correlations were both 0.997 when delineating the sagittal ICAs at 17.5 and 64% and at 12 and 64% respectively.

conclusionsDelineation of two specific intracranial areas is sufficient for intracranial volume estimation. MAIN MESSAGES: • Delineation of two specific intracranial areas is sufficient for intracranial volume estimation. • The estimates had a Pearson correlation of 0.997 with intracranial volume. • The estimation should take no more than 5 min.

Indexed as

EstimationIntracranial areaIntracranial volumeMagnetic resonance imagingManual segmentation

Identifiers

PMID29374387
PMCPMC5825311

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