Evidence map›Paper›PMID 31485315›Full record

ArticleInterface focus2019

Quantitative assessment of cervical softening during pregnancy with shear wave elasticity imaging: an

Lindsey C Carlson, Timothy J Hall, Ivan M Rosado-Mendez, Lu Mao, Helen Feltovich

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Interface focus, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Trial
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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

5 authors.

Lindsey C CarlsonDepartment of Medical Physics, University of Wisconsin, Madison, WI, USA.ORCID 0000-0001-7940-1373
Timothy J HallDepartment of Medical Physics, University of Wisconsin, Madison, WI, USA.
Ivan M Rosado-MendezDepartment of Medical Physics, University of Wisconsin, Madison, WI, USA.
Lu MaoDepartment of Biostatistics and Medical Informatics, University of Wisconsin, Madison, WI, USA.
Helen FeltovichDepartment of Medical Physics, University of Wisconsin, Madison, WI, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report here the results of a longitudinal study of cervix stiffness during pregnancy. Thirty women, ages ranging from 19 to 37 years, were scanned with ultrasound at five time points beginning at their normal first-trimester screening (8-13 weeks) through term pregnancy (nominally 40 week) using a clinical ultrasound imaging system modified with a special ultrasound transducer and system software. The system estimated the shear wave speed (its square proportional to the shear modulus under idealized conditions) in the cervix. We found a constant fractional reduction (about 4% per week) in shear wave speed with increasing gestational age. We also demonstrated a spatial gradient in shear wave speed along the length of the cervix (softest at the distal end). Results were consistent with our previous

Indexed as

cervixpreterm birthshear wave elastography imagingshear wave speed

Identifiers

PMID31485315
PMCPMC6710662

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.