Evidence map›Paper›PMID 31044459›Full record

Observational studyJournal of magnetic resonance imaging : JMRI2020

Simultaneous phase-contrast MRI and PET for noninvasive quantification of cerebral blood flow and reactivity in healthy subjects and patients with cerebrovascular disease.

Yosuke Ishii, Thoralf Thamm, Jia Guo, Mohammad Mehdi Khalighi, Mirwais Wardak, Dawn Holley, Harsh Gandhi, Jun Hyung Park, Bin Shen, Gary K Steinberg and 3 more

Open access · greenAbstract readObservational Study
In one paragraph

Observational study in Journal of magnetic resonance imaging : JMRI, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Early-Frame [Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2024
    Article
  9. Using arterial spin labeling to measure cerebrovascular reactivity in Moyamoya disease: Insights from simultaneous PET/MRI.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
    Article
  10. Article
  11. NRM 2021 Abstract Booklet.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Article
  12. Article
  13. Evaluation of Arterial Spin Labeling MRI-Comparison withDiagnostics (Basel, Switzerland) · 2021
    Article
  14. PredictingJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  15. Review
  16. Article
  17. Non-invasive MRI of choroid plexus vascular function.Imaging neuroscience (Cambridge, Mass.)
    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

13 authors at 5 institutions in 3 countries.

Yosuke IshiiDepartment of Radiology, Stanford University, Stanford, California, USA.ORCID 0000-0001-8944-6241
Thoralf ThammDepartment of Radiology, Stanford University, Stanford, California, USA.
Jia GuoDepartment of Radiology, Stanford University, Stanford, California, USA.
Mohammad Mehdi KhalighiGlobal Applied Science Lab, GE Healthcare, Menlo Park, California, USA.
Mirwais WardakDepartment of Radiology, Stanford University, Stanford, California, USA.
Dawn HolleyDepartment of Radiology, Stanford University, Stanford, California, USA.
Harsh GandhiDepartment of Radiology, Stanford University, Stanford, California, USA.
Jun Hyung ParkDepartment of Radiology, Stanford University, Stanford, California, USA.
Bin ShenDepartment of Radiology, Stanford University, Stanford, California, USA.
Gary K SteinbergDepartment of Neurosurgery, Stanford University, Stanford, California, USA.
Frederick T ChinDepartment of Radiology, Stanford University, Stanford, California, USA.
Greg ZaharchukDepartment of Radiology, Stanford University, Stanford, California, USA.
Audrey Peiwen FanDepartment of Radiology, Stanford University, Stanford, California, USA.
Stanford University · USApplied Sciences Laboratory (United States) · USCharité - Universitätsmedizin Berlin · DETokyo Medical and Dental University · JPUniversity of California, Riverside · US

Funding

Cerebrovascular Reserve Imaging with Simultaneous PET/MRI Using Arterial Spin Labeling and Deep LearningR01EB025220 · NIBIB · STANFORD UNIVERSITY · PI ZAHARCHUK, GREGORY GEORGE · 2018 to 2021
$2.8M
Quantitative PET/MRI of brain oxygenation in cerebrovascular diseaseK99NS102884 · NINDS · STANFORD UNIVERSITY · PI FAN, AUDREY PEIWEN · 2018 to 2019
$170k
NIBIB NIH HHS R01 EB025220NINDS NIH HHS K99 NS102884
6 · The paper itself

Abstract

backgroundH PURPOSE: To demonstrate a new noninvasive method to quantify absolute CBF with a PET/MRI hybrid scanner. This blood-free approach, called PC-PET, takes the spatial CBF distribution from a static H STUDY TYPE: Observational. SUBJECTS: Twelve healthy controls (HC) and 13 patients with Moyamoya disease (MM) as a model of chronic ischemic disease. FIELD STRENGTH/SEQUENCES: 3T/2D cardiac-gated phase-contrast MRI and H ASSESSMENT: PC-PET CBF values from whole brain (WB), gray matter (GM), and white matter (WM) in HCs were compared with literature values since 2000. CBF and cerebrovascular reactivity (CVR), which is defined as the percent CBF change between baseline and post-acetazolamide (vasodilator) scans, were measured by PC-PET in MM patients and HCs within cortical regions corresponding to major vascular territories. Statistical Tests: Linear, mixed effects models were created to compare CBF and CVR, respectively, between patients and controls, and between different degrees of stenosis.

resultsThe mean CBF values in WB, GM, and WM in HC were 42 ± 7 ml/100 g/min, 50 ± 7 ml/100 g/min, and 23 ± 3 ml/100 g/min, respectively, which agree well with literature values. Compared with normal regions (57 ± 23%), patients showed significantly decreased CVR in areas with mild/moderate stenosis (47 ± 17%, P = 0.011) and in severe/occluded areas (40 ± 16%, P = 0.016). Data Conclusion: PC-PET identifies differences in cerebrovascular reactivity between healthy controls and cerebrovascular patients. PC-PET is suitable for CBF measurement when arterial blood sampling is not accessible, and warrants comparison to fully quantitative H LEVEL OF EVIDENCE: 3 Technical Efficacy Stage: 2 J. Magn. Reson. Imaging 2019. J. Magn. Reson. Imaging 2020;51:183-194.

Indexed as

AdultBrainCerebrovascular CirculationFemaleHumansMagnetic Resonance ImagingMaleMoyamoya DiseaseMultimodal ImagingOxygen RadioisotopesPositron-Emission TomographyOxygen Radioisotopescerebral blood flowcerebrovascular reactivitymoyamoya diseaseperfusion imagingphase-contrast MRIpositron emission tomography

Identifiers

PMID31044459
PMCPMC7212833
OpenAlexW2942850839

What OpenQuestion holds

Textmetadata
LicenceTDM
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.