Evidence map›Paper›PMID 28944081›Full record

ArticleActa radiologica open2017

Renal volumetry with magnetic resonance imaging.

Rolf H Christensen, Torbjörn Lundgren, Peter Stenvinkel, Torkel B Brismar

Open access · goldAbstract read
In one paragraph

Article in Acta radiologica open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.6field-weighted citation impact, top 29% 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

7 citing papers in PubMed, 14 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

4 authors at 2 institutions in 1 country.

Rolf H ChristensenDivision of Medical Imaging and Technology, CLINTEC, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0002-3409-1938
Torbjörn LundgrenDivision of Transplantation Surgery, CLINTEC, Karolinska Institutet, Stockholm, Sweden.
Peter StenvinkelDivision of Renal Medicine, Karolinska Institutet, Stockholm, Sweden.
Torkel B BrismarDepartment of Radiology, Karolinska University Hospital, Stockholm, Sweden.
Karolinska Institutet · SEKarolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNo gold standard exists for renal volumetry in vivo. PURPOSE: To devise and evaluate segmentation methods on magnetic resonance imaging (MRI) datasets. MATERIAL AND

methodsFive combinations of MRI pulse sequences and measuring methods were used to measure the renal volumes of five men aged 54-72 years scanned before autologous renal stem cell transplantation and three, six, and 12 months post transplantation.

resultsRenal volume did not change after stem cell transplantation. The results varied considerably: the reproducibility (coefficient of variation) was 4.0-6.0% and measurements took 1-13 min per kidney. Manual segmentation of images from the volumetric interpolated breath-hold examination (VIBE) without fat saturation sequence provided best reproducibility but was time-consuming. Use of the ellipsoid formula from half Fourier acquisition single shot turbo spin echo (HASTE) provided the fastest measurement, but resulted in lower reproducibility.

conclusionRenal volumetry based on images from the pulse sequence VIBE without fat saturation acquired using an out-of-phase TE may be investigated further, possibly in combination with the quick ellipsoid formula.

Indexed as

calculationkidneyMagnetic resonance imaging (MRI)measurementvolume

Identifiers

PMID28944081
PMCPMC5602223
OpenAlexW2754935264

What OpenQuestion holds

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LicenceCC BY-NC
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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.