Evidence map›Paper›PMID 29793851›Full record

ArticleUltrasound in medicine & biology2018

Evaluation of Examiner Performance Using a Duplex Ultrasound Simulator. Flow Velocity Measurements in Dialysis Access Fistula Models.

Daniel F Leotta, R Eugene Zierler, Kurt Sansom, Alberto Aliseda, Mark D Anderson, Florence H Sheehan

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Ultrasound in medicine & biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Treating Porcine Abscesses with Histotripsy: A Pilot Study.Ultrasound in medicine & biology · 2021
    Article
  5. 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

6 authors.

Daniel F LeottaApplied Physics Laboratory, University of Washington, Seattle, Washington, USA. Electronic address: leotta@uw.edu.
R Eugene ZierlerDepartment of Surgery, Division of Vascular Surgery, University of Washington, Seattle, Washington, USA.
Kurt SansomDepartment of Mechanical Engineering, University of Washington, Seattle, Washington, USA.
Alberto AlisedaDepartment of Mechanical Engineering, University of Washington, Seattle, Washington, USA.
Mark D AndersonDepartment of Medicine, Division of Cardiology, University of Washington, Seattle Washington, USA.
Florence H SheehanDepartment of Medicine, Division of Cardiology, University of Washington, Seattle Washington, USA.

Funding

A DOPPLER SIMULATOR FOR VASCULAR ULTRASOUND TRAININGR42EB018124 · NIBIB · SHEEHAN MEDICAL, LLC · PI ANDERSON, MARK, LEOTTA, DANIEL F · 2015 to 2016
$1.1M
A Doppler Simulator for Vascular Ultrasound TrainingR41EB018124 · NIBIB · SHEEHAN MEDICAL, LLC · PI LEOTTA, DANIEL F, SHEEHAN, FLORENCE · 2014 to 2014
$198k
NIBIB NIH HHS R41 EB018124NIBIB NIH HHS R42 EB018124
6 · The paper itself

Abstract

We developed a duplex ultrasound simulator for training and assessment of scanning skills. We used the simulator to test examiner performance in the measurement of flow velocities in dialysis access fistulas. Test cases were created from 3-D ultrasound scans of two dialysis access fistulas by reconstructing 3-D blood vessel models and simulating blood flow velocity fields within the lumens. The simulator displays a 2-D B-mode or color Doppler image corresponding to transducer position on a mannequin; a spectral waveform is generated according to Doppler sample volume location and system settings. Examiner performance was assessed by comparing the measured peak systolic velocity (PSV) with the true PSV provided by the computational flow model. The PSV measured by four expert examiners deviated from the true value by 7.8 ± 6.1%. The results indicate the ability of the simulator to objectively assess an examiner's measurement accuracy in complex vascular targets.

Indexed as

Arteriovenous Shunt, SurgicalComputer SimulationBlood Flow VelocityClinical CompetenceGraft Occlusion, VascularImaging, Three-DimensionalKidneyManikinsModels, BiologicalRegional Blood FlowRenal DialysisReproducibility of ResultsUltrasonicsUltrasonography, Doppler, DuplexColor DopplerDialysis access fistulaDoppler spectral waveformDuplex ultrasoundMedical simulationPeak systolic velocity

Identifiers

PMID29793851
PMCPMC6026548

What OpenQuestion holds

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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.