Evidence map›Paper›PMID 27251180›Full record

ArticleEuropean radiology2017

Impact of post-processing methods on apparent diffusion coefficient values.

Martin Georg Zeilinger, Michael Lell, Pascal Andreas Thomas Baltzer, Arnd Dörfler, Michael Uder, Matthias Dietzel

Abstract read
In one paragraph

Article in European radiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

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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

6 authors.

Martin Georg ZeilingerInstitute of Diagnostic Radiology, University of Erlangen-Nuremberg, Maximiliansplatz 1, D-91054, Erlangen, Germany.
Michael LellInstitute of Diagnostic Radiology, University of Erlangen-Nuremberg, Maximiliansplatz 1, D-91054, Erlangen, Germany.
Pascal Andreas Thomas BaltzerDepartment of Radiology and Nuclear Medicine, Medical University Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria. pascal.baltzer@meduniwien.ac.at.
Arnd DörflerDepartment of Neuroradiology, University of Erlangen-Nuremberg, Schwabachanlage 6, D-91054, Erlangen, Germany.
Michael UderInstitute of Diagnostic Radiology, University of Erlangen-Nuremberg, Maximiliansplatz 1, D-91054, Erlangen, Germany.
Matthias DietzelDepartment of Neuroradiology, University of Erlangen-Nuremberg, Schwabachanlage 6, D-91054, Erlangen, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe apparent diffusion coefficient (ADC) is increasingly used as a quantitative biomarker in oncological imaging. ADC calculation is based on raw diffusion-weighted imaging (DWI) data, and multiple post-processing methods (PPMs) have been proposed for this purpose. We investigated whether PPM has an impact on final ADC values.

methodsSixty-five lesions scanned with a standardized whole-body DWI-protocol at 3 T served as input data (EPI-DWI, b-values: 50, 400 and 800 s/mm

resultsStratified by PPM, mean ADCs ranged from 1.136-1.206 *10

conclusionAltering the PPM had a significant impact on the ADC value. This should be considered if ADC values from different post-processing methods are compared in patient studies. KEY POINTS: • Post-processing methods significantly influenced ADC values. • The mean coefficient of ADC variation due to PPM was 7.2 %. • To achieve reproducible ADC values, standardization of post-processing is recommended.

Indexed as

AdultAgedAged, 80 and overDiffusion Magnetic Resonance ImagingFemaleHumansImage Processing, Computer-AssistedMaleMiddle AgedNeoplasmsProspective StudiesReproducibility of ResultsWhole Body ImagingADCDWIMRIReproducibilityTumour

Identifiers

PMID27251180
PMCPMC5591618

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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.