Evidence map›Paper›PMID 23371821›Full record

ArticleJournal of magnetic resonance imaging : JMRI2013

Inter- and intra-rater reliability of blood and cerebrospinal fluid flow quantification by phase-contrast MRI.

Inga Koerte, Caroline Haberl, Michael Schmidt, Andreas Pomschar, Sang Lee, Petra Rapp, Denise Steffinger, Rong-Wen Tain, Noam Alperin, Birgit Ertl-Wagner

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

16 citing papers in PubMed, 19 citations in OpenAlex.

  1. Trial
  2. Cervicomedullary CSF space obliteration as a risk factor of reoperation in Chiari malformation type I.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026
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  16. Feasibility of fetal cardiac output measurement by phase-contrast magnetic resonance imaging using Doppler ultrasound gating increases with gestational age.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance
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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

10 authors at 2 institutions in 2 countries.

Inga KoerteInstitute for Clinical Radiology, Ludwig-Maximilians-University Munich, Germany. ikoerte@med.lmu.de
Caroline Haberl
Michael Schmidt
Andreas Pomschar
Sang Lee
Petra Rapp
Denise Steffinger
Rong-Wen Tain
Noam Alperin
Birgit Ertl-Wagner
Ludwig-Maximilians-Universität München · DEUniversity of Miami · US

Funding

Noninvasive Measurements of Intracranial PressureR41NS046185 · NINDS · ALPERIN NONINVASIVE DIAGNOSTICS, INC. · PI ALPERIN, NOAM · 2004 to 2004
$106k
NINDS NIH HHS 1R41NS046185-01A1NINDS NIH HHS R41 NS046185
6 · The paper itself

Abstract

purposeTo evaluate the intra- and inter-rater reliability of the quantification of blood and CSF flow rates by phase contrast MRI. MATERIALS AND

methodsBlood and CSF flows in the upper cervical region were imaged with velocity-encoded cine-phase contrast using 3T scanners from different manufacturers at two centers. Data of 6 subjects scanned in center A and of 5 subjects in center B were analyzed by six readers at two levels of training. Each data set was analyzed three times in a randomized order for a total of 33 data sets. Intra-class correlation coefficients (ICC) were calculated for the primary measurements of areas and flow rates through the main cervical arteries, veins and the CSF space, and for secondary parameters derived from the individual flow rates.

resultsICC ranged from 0.80 to 0.96 for the lumen area and from 0.97 to 0.99 for the volumetric flow rate. The ICC for the derived secondary measures ranged from 0.85 to 0.99. Differences due to operator level of training were not statistically significant.

conclusionHigh intra- and inter-rater reliability of volumetric flow rate measurements is currently achievable across manufacturers and users' skill levels with a pulsatility based automated lumen segmentation.

Indexed as

AdolescentAdultBlood Flow VelocityCerebrospinal FluidCerebrovascular CirculationChildFemaleGermanyHumansMagnetic Resonance AngiographyMaleMiddle AgedObserver VariationReproducibility of ResultsSensitivity and SpecificityYoung Adultflow quantitationinter-rater reliabilityintra-rater reliabilityMR phase-contrast imagingpulsatility-based segmentation

Identifiers

PMID23371821
PMCPMC3644311
OpenAlexW2104469567

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.