Evidence map›Paper›PMID 29528447›Full record

ArticleNeurosurgery2019

Clinical Use of Cerebrovascular Compliance Imaging to Evaluate Revascularization in Patients With Moyamoya.

Jennifer M Watchmaker, Blaise deB Frederick, Matthew R Fusco, Larry T Davis, Meher R Juttukonda, Sarah K Lants, Howard S Kirshner, Manus J Donahue

Abstract read
In one paragraph

Article in Neurosurgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

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

  1. Pooled it
  2. Cerebrovascular reactivity delay measured by blood oxygen level dependent magnetic resonance imaging and gas challenges: A systematic review.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Hemodynamic impairments within individual watershed areas in asymptomatic carotid artery stenosis by multimodal MRI.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Article
  13. Choroid plexus perfusion and intracranial cerebrospinal fluid changes after angiogenesis.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  14. Classifying intracranial stenosis disease severity from functional MRI data using machine learning.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  15. Hypercapnic BOLD MRI compared to HNeuroImage. Clinical · 2019
    Article
  16. Choroid plexus vascular reactivity in moyamoya: Implications for choroid plexus regulation in ischemic stress.Journal of neuroimaging : official journal of the American Society of Neuroimaging
    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

8 authors.

Jennifer M WatchmakerVanderbilt University of Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee.
Blaise deB FrederickBrain Imaging Center, McLean Hospital, Belmont, Massachusetts.
Matthew R FuscoDepartment of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee.
Larry T DavisDepartment of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee.
Meher R JuttukondaVanderbilt University of Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee.
Sarah K LantsVanderbilt University of Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee.
Howard S KirshnerDepartment of Neurology, Vanderbilt University Medical Center, Nashville, Tennessee.
Manus J DonahueVanderbilt University of Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee.

Funding

Imaging collaterals and tissue metabolism in patients with Moyamoya syndromeR01NS097763 · NINDS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI DONAHUE, MANUS J · 2016 to 2020
$1.7M
Institutional Predoctoral Training Program in Biomedical Imaging ScienceT32EB014841 · NIBIB · VANDERBILT UNIVERSITY · PI GORE, JOHN C · 2013 to 2017
$771k
NIBIB NIH HHS T32 EB014841NINDS NIH HHS R01 NS097763
6 · The paper itself

Abstract

backgroundSurgical revascularization is often performed in patients with moyamoya, however routine tools for efficacy evaluation are underdeveloped. The gold standard is digital subtraction angiography (DSA); however, DSA requires ionizing radiation and procedural risk, and therefore is suboptimal for routine surveillance of parenchymal health.

objectiveTo determine whether parenchymal vascular compliance measures, obtained noninvasively using magnetic resonance imaging (MRI), provide surrogates to revascularization success by comparing measures with DSA before and after surgical revascularization.

methodsTwenty surgical hemispheres with DSA and MRI performed before and after revascularization were evaluated. Cerebrovascular reactivity (CVR)-weighted images were acquired using hypercapnic 3-Tesla gradient echo blood oxygenation level-dependent MRI. Standard and novel analysis algorithms were applied (i) to quantify relative CVR (rCVRRAW), and decompose this response into (ii) relative maximum CVR (rCVRMAX) and (iii) a surrogate measure of the time for parenchyma to respond maximally to the stimulus, CVRDELAY. Measures between time points in patients with good and poor surgical outcomes based on DSA-visualized neoangiogenesis were contrasted (signed-rank test; significance: 2-sided P < .050).

resultsrCVRRAW increases (P = .010) and CVRDELAY decreases (P = .001) were observed pre- vs post-revascularization in hemispheres with DSA-confirmed collateral formation; no difference was found pre- vs post-revascularization in hemispheres with poor revascularization. No significant change in rCVRMAX post-revascularization was observed in either group, or between any of the MRI measures, in the nonsurgical hemisphere.

conclusionImprovement in parenchymal compliance measures post-revascularization, primarily attributed to reductions in microvascular response time, is concurrent with collateral formation visualized on DSA, and may be useful for longitudinal monitoring of surgical outcomes.

Indexed as

AdolescentAdultAngiography, Digital SubtractionCerebral RevascularizationCerebrovascular CirculationFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedMoyamoya DiseaseNeuroimagingYoung Adult

Identifiers

PMID29528447
PMCPMC6500903

What OpenQuestion holds

Textmetadata
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.