Evidence map›Paper›PMID 31897905›Full record

ArticleMagma (New York, N.Y.)2020

Pilot study utilizing MRI 3D TGSE PASL (arterial spin labeling) differentiating clearance rates of labeled protons in the CNS of patients with early Alzheimer disease from normal subjects.

Charles R Joseph, Christopher M Benhatzel, Logan J Stern, Olivia M Hopper, Michael D Lockwood

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In one paragraph

Article in Magma (New York, N.Y.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

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  7. Diffusion Tensor Image Analysis ALong the Perivascular Space (DTI-ALPS): Revisiting the Meaning and Significance of the Method.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2024
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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

5 authors.

Charles R JosephLiberty University College of Osteopathic Medicine, Lynchburg, Virginia, USA. crjoseph@liberty.edu.ORCID http://orcid.org/0000-0002-8057-8704
Christopher M BenhatzelLiberty University College of Osteopathic Medicine, Lynchburg, Virginia, USA.
Logan J SternLiberty University College of Osteopathic Medicine, Lynchburg, Virginia, USA.
Olivia M HopperLiberty University College of Osteopathic Medicine, Lynchburg, Virginia, USA.
Michael D LockwoodLiberty University College of Osteopathic Medicine, Lynchburg, Virginia, USA.

Funding

Liberty University College of Osteopathic Medicine 2017-02
6 · The paper itself

Abstract

objectiveTo determine the feasibility of 3D TGSE PASL MRI with long inversion times to estimate CNS perfusion clearance, comparing normals to Alzheimer disease patients.

methodsThis pilot study used 3D TGSE PASL MRI with long TIs to estimate the signal clearance of labeled blood/ultra-filtrate (CSF) from brain signal averages of seven inversion times (TI) from six regions of the brain in 18 normal subjects of ages 18-70 years before and after exercise. Arterial pulse corrected signal average per TI versus TI was plotted. The slope (linear regression) indicated the clearance rate. Three subjects with mild Alzheimer disease (AD) were studied pre-exercise only.

resultsIn normals, signal decay rate variance among brain regions, age groups and post-exercise failed to demonstrate statistical significance except in middle-age group pre- to post-exercise-dominant temporal lobe. We found highly statistically significant reduced signal clearance rate in the AD group. DISCUSSION: Signal decay in normal age groups correlates with decay of T1

Indexed as

AdolescentAdultAgedAlzheimer DiseaseBrainCentral Nervous SystemCerebrovascular CirculationFemaleHumansImage Interpretation, Computer-AssistedImage Processing, Computer-AssistedImaging, Three-DimensionalMagnetic Resonance ImagingMaleMiddle AgedPerfusionSpin Labels3D TGSE (turbo gradient spin echo) PASL (pulsed arterial spin labeling) MRI imagingAlzheimer DiseaseArterial spin labeling perfusion MRIGlymphatic systemParavascular flow

Identifiers

What OpenQuestion holds

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Read underepoch 390

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.