Evidence map›Paper›PMID 30093341›Full record

ArticleUltrasound in medicine & biology2018

Power Spectrum Consistency among Systems and Transducers.

Quinton W Guerrero, Liexiang Fan, Shelby Brunke, Andy Milkowski, Ivan M Rosado-Mendez, Timothy J Hall

Abstract read
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 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Recent Advances in Attenuation Estimation.Advances in experimental medicine and biology · 2023
    Article
  3. Review
  4. Article
  5. Article
  6. 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.

Quinton W GuerreroMedical Physics Department, University of Wisconsin, Madison, Wisconsin, USA.
Liexiang FanSiemens Ultrasound Division, Issaquah, Washington, USA.
Shelby BrunkeSiemens Ultrasound Division, Issaquah, Washington, USA.
Andy MilkowskiSiemens Ultrasound Division, Issaquah, Washington, USA.
Ivan M Rosado-MendezMedical Physics Department, University of Wisconsin, Madison, Wisconsin, USA; Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Timothy J HallMedical Physics Department, University of Wisconsin, Madison, Wisconsin, USA. Electronic address: tjhall@wisc.edu.

Funding

U.W. RADIOLOGICAL SCIENCES TRAINING PROGRAMT32CA009206 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI Bryan Patrick Bednarz · 1985 to 2026
$12.1M
Monitoring Changes in Cervical Microstructure During PregnancyR01HD072077 · NICHD · UNIVERSITY OF WISCONSIN-MADISON · PI FELTOVICH, HELEN, HALL, TIMOTHY J · 2013 to 2022
$6.1M
NCI NIH HHS T32 CA009206NICHD NIH HHS R01 HD072077
6 · The paper itself

Abstract

Use of the reference phantom method for computing acoustic attenuation and backscatter is widespread. However, clinical application of these methods has been limited by the need to acquire reference phantom data. We determined that the data acquired from 11 transducers of the same model and five clinical ultrasound systems of the same model produce equivalent estimates of reference phantom power spectra. We describe that the contribution to power spectral density variance among systems and transducers equals that from speckle variance with 59 uncorrelated echo signals. Thus, when the number of uncorrelated lines of data is small, speckle variance will dominate the power spectral density estimate variance introduced by different systems and transducers. These results suggest that, at least for this particular transducer and imaging system combination, one set of reference phantom calibration data is highly representative of the average among equivalent transducers and systems that are in good working order.

Indexed as

Phantoms, ImagingSignal Processing, Computer-AssistedTransducersAcousticsReproducibility of ResultsUltrasonicsUltrasonographyReference phantom methodTissue characterization

Identifiers

PMID30093341
PMCPMC6511990

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.