Evidence map›Paper›PMID 31233954›Full record

ArticleNeuroImage. Clinical2019

Characterizing a perfusion-based periventricular small vessel region of interest.

Sudipto Dolui, Dylan Tisdall, Marta Vidorreta, David R Jacobs, Ilya M Nasrallah, R Nick Bryan, David A Wolk, John A Detre

Open access · goldAbstract read
In one paragraph

Article in NeuroImage. Clinical, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 7% of its field
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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.

  1. Pooled it
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  3. Review
  4. Cerebral perfusion features linking subclinical cardiac and aortic dysfunction to vascular brain injury.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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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 at 4 institutions in 2 countries.

Sudipto DoluiDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
Dylan TisdallDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
Marta VidorretaDepartment of Neurology, University of Pennsylvania, Philadelphia, PA, USA; Siemens Healthcare S.L.U., Madrid, Spain.
David R JacobsDivision of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA.
Ilya M NasrallahDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
R Nick BryanDepartment of Diagnostic Medicine, University of Texas, Austin, Austin, TX, USA.
David A WolkDepartment of Neurology, University of Pennsylvania, Philadelphia, PA, USA.
John A DetreDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA; Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA. Electronic address: detre@pennmedicine.upenn.edu.
University of Pennsylvania · USSiemens Healthcare (United States) · USThe University of Texas at Austin · USUniversity of Minnesota · US

Funding

UPenn ADCC Biomarker CoreP30AG010124 · NIA · UNIVERSITY OF PENNSYLVANIA · PI TROJANOWSKI, JOHN Q. · 1991 to 2020
$35.1M
Cerebral Blood Flow trajectory in the Alzheimer's Disease continuumR03AG063213 · NIA · UNIVERSITY OF PENNSYLVANIA · PI DOLUI, SUDIPTO · 2019 to 2020
$323k
NIA NIH HHS P30 AG010124NIA NIH HHS R03 AG063213
6 · The paper itself

Abstract

The periventricular white matter (PVWM) is supplied by terminal distributions of small vessels and is particularly susceptible to developing white matter lesions (WML) associated with cerebral small vessel disease (CSVD). We obtained group-averaged cerebral blood flow (CBF) maps from Arterial Spin Labeled (ASL) perfusion MRI data obtained in 436 middle-aged (50.4 ± 3.5 years) subjects in the NHLBI CARDIA study and in 61 elderly (73.3 ± 6.9 years) cognitively normal subjects recruited from the Penn Alzheimer's Disease Center (ADC) and found that the lowest perfused brain voxels are located within the PVWM. We constructed a white matter periventricular small vessel (PSV) region of interest (ROI) by empirically thresholding the group averaged CARDIA CBF map at CBF < 15 ml/100 g/min. Thereafter we compared CBF in the PSV ROI and in the remaining white matter (RWM) with the location and volume of WML measured with Fluid Attenuated Inversion Recovery (FLAIR) MRI. WM CBF was lower within WML than outside WML voxels (p < <0.0001) in both the PSV and RWM ROIs, however this difference was much smaller (p < <0.0001) in the PSV ROI than in the RWM suggesting a more homogenous reduction of CBF in the PSV region. Normalized WML volumes were significantly higher in the PSV ROI than in the RWM and in the elderly cohort as compared to the middle-aged cohort (p < <0.0001). Additionally, the PSV ROI showed a significantly (p = .001) greater increase in lesion volume than the RWM in the elderly ADC cohort than the younger CARDIA cohort. Considerable intersubject variability in PSV CBF observed in both study cohorts likely represents biological variability that may be predictive of future WML and/or cognitive decline. In conclusion, a data-driven PSV ROI defined by voxels with low perfusion in middle age defines a region with homogeneously reduced CBF that is particularly susceptible to progressive ischemic injury in elderly controls. PSV CBF may provide a mechanistically specific biomarker of CSVD.

Indexed as

AgedAged, 80 and overBiomarkersCerebral Small Vessel DiseasesCerebral VentriclesCerebrovascular CirculationCohort StudiesFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedNeuroimagingWhite MatterBiomarkersArterial spin labelingCerebral blood flowCerebral small vessel diseasePeriventricular white matterWhite matter lesions

Identifiers

PMID31233954
PMCPMC6595083
OpenAlexW2950029214

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.