Evidence map›Paper›PMID 42052352›Full record

ArticleJBMR plus2026

Effects of contrast on opportunistic computed tomography vertebral bone mineral density analysis using internal calibration.

Bryn E Matheson, Kirsten N Bott, Andrew G Kiraly, Richard E A Walker, Steven K Boyd, Sarah L Manske

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in JBMR plus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Bryn E MathesonDepartment of Radiology, University of Calgary, Calgary, AB T2N 4Z6, Canada.ORCID https://orcid.org/0009-0007-6391-2567
Kirsten N BottDepartment of Radiology, University of Calgary, Calgary, AB T2N 4Z6, Canada.
Andrew G KiralyDepartment of Radiology, University of Calgary, Calgary, AB T2N 4Z6, Canada.
Richard E A WalkerDepartment of Radiology, University of Calgary, Calgary, AB T2N 4Z6, Canada.
Steven K BoydDepartment of Radiology, University of Calgary, Calgary, AB T2N 4Z6, Canada.ORCID https://orcid.org/0000-0002-2930-5997
Sarah L ManskeDepartment of Radiology, University of Calgary, Calgary, AB T2N 4Z6, Canada.ORCID https://orcid.org/0000-0003-0888-9556

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Opportunistic CT, which repurposes clinical CT scans, has the potential to aid in osteoporosis screening and diagnosis. To convert CT scans to bone-equivalent densities without a calibration phantom, internal (or phantomless) calibration methods have been developed, using referent tissues of known density within the body. A key limitation is that intravenous iodinated contrast enhancement, which is routinely used in clinical settings, impacts quantitative measurements derived from these phantomless calibration techniques. Therefore, this cross-sectional study examined the influence of contrast enhancement on internal reference tissues and volumetric BMD (vBMD) measures derived using phantomless internal calibration. Hematuria protocol CT scans (

Indexed as

BMDcontrast enhancementCTinternal calibrationopportunistic CT

Identifiers

PMID42052352
PMCPMC13117613

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.