Evidence map›Paper›PMID 33989034›Full record

ArticleThe British journal of radiology2021

Comparing the supine and erect pelvis radiographic examinations: an evaluation of anatomy, image quality and radiation dose.

Kevin Flintham, Kholoud Alzyoud, Andrew England, Peter Hogg, Beverly Snaith

Open access · hybridAbstract readComparative Study
In one paragraph

Article in The British journal of radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
3.1field-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

4 citing papers in PubMed, 18 citations in OpenAlex.

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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 at 4 institutions in 2 countries.

Kevin FlinthamMid Yorkshire Hospitals NHS Trust, Wakefield, UK.
Kholoud AlzyoudHashemite University, Zarqa, Jordan.
Andrew EnglandUniversity of Salford, Salford, UK.
Peter HoggUniversity of Salford, Salford, UK.
Beverly SnaithMid Yorkshire Hospitals NHS Trust, Wakefield, UK.ORCID https://orcid.org/0000-0002-6296-0889
University of Salford · GBHashemite University · JOMid Yorkshire Hospitals NHS Trust · GBUniversity of Bradford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesPelvis radiographs are usually acquired supine despite standing imaging reflecting functional anatomy. We compared supine and erect radiographic examinations for anatomical features, radiation dose and image quality.

methods60 patients underwent pelvis radiography in both supine and erect positions at the same examination appointment. Measures of body mass index and sagittal diameter were obtained. Images were evaluated using visual grading analysis and pelvic tilt was compared. Dose-area product values were recorded and inputted into the CalDose_X software to estimate effective dose (ED). The CalDose_X software allowed comparisons using data from the erect and supine sex-specific phantoms (MAX06 & FAX06).

resultsPatient sagittal diameter was greater on standing with an average 20.6% increase at the iliac crest (median 30.0, interquartile range [26.0 to 34.0] cm), in comparison to the supine position [24.0 (22.3 to 28.0) cm;

conclusionPatient diameter and pelvic tilt were altered on weightbearing. Erect images demonstrated an overall decrease in image quality with a higher radiation dose. Optimal acquisition parameters are required for erect pelvis radiography as the supine technique is not directly transferable.

Indexed as

Radiation DosageStanding PositionSupine PositionAgedArthralgiaBody Mass IndexFemaleHumansMaleMiddle AgedOsteoarthritis, HipPelvisPhantoms, ImagingProspective StudiesSoftware

Identifiers

PMID33989034
PMCPMC8248218
OpenAlexW3163625398

What OpenQuestion holds

Textmetadata
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.