Evidence map›Paper›PMID 31536538›Full record

ArticlePloS one2019

Using path signatures to predict a diagnosis of Alzheimer's disease.

P J Moore, T J Lyons, J Gallacher, Alzheimer’s Disease Neuroimaging Initiative

Abstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–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

10 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Neural-signature methods for structured EHR prediction.BMC medical informatics and decision making · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Multi-time-point data preparation robustly reveals MCI and dementia risk factors.Alzheimer's & dementia (Amsterdam, Netherlands) · 2020
    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

4 authors.

P J MooreMathematical Institute, University of Oxford, Oxford, United Kingdom.ORCID 0000-0001-6171-4072
T J LyonsMathematical Institute, University of Oxford, Oxford, United Kingdom.
J GallacherDepartment of Psychiatry, University of Oxford, Oxford, United Kingdom.
Alzheimer’s Disease Neuroimaging Initiative

Funding

Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
CIHRMedical Research Council MR/L023784/2NIA NIH HHS U01 AG024904
6 · The paper itself

Abstract

The path signature is a means of feature generation that can encode nonlinear interactions in data in addition to the usual linear terms. It provides interpretable features and its output is a fixed length vector irrespective of the number of input points or their sample times. In this paper we use the path signature to provide features for identifying people whose diagnosis subsequently converts to Alzheimer's disease. In two separate classification tasks we distinguish converters from 1) healthy individuals, and 2) individuals with mild cognitive impairment. The data used are time-ordered measurements of the whole brain, ventricles and hippocampus from the Alzheimer's Disease Neuroimaging Initiative (ADNI). We find two nonlinear interactions which are predictive in both cases. The first interaction is change of hippocampal volume with time, and the second is a change of hippocampal volume relative to the volume of the whole brain. While hippocampal and brain volume changes are well known in Alzheimer's disease, we demonstrate the power of the path signature in their identification and analysis without manual feature selection. Sequential data is becoming increasingly available as monitoring technology is applied, and the path signature method is shown to be a useful tool in the processing of this data.

Indexed as

Machine LearningAgedAged, 80 and overAlzheimer DiseaseBrainCase-Control StudiesCognitive DysfunctionDisease ProgressionFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedModels, TheoreticalNeuroimaging

Identifiers

PMID31536538
PMCPMC6752804

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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.