Evidence map›Paper›PMID 19891014›Full record

ArticleWorld journal of gastroenterology2009

Voxel-based analyses of magnetization transfer imaging of the brain in hepatic encephalopathy.

Falk-R Miese, Hans-Jörg Wittsack, Gerald Kircheis, Arne Holstein, Christian Mathys, Ulrich Mödder, Mathias Cohnen

Open access · hybridAbstract readControlled Clinical Trial
In one paragraph

Article in World journal of gastroenterology, 2009. 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
0.9field-weighted citation impact, top 22% 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, 19 citations in OpenAlex.

  1. Brain magnetic resonance spectroscopy in episodic hepatic encephalopathy.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2013
    Trial
  2. Article
  3. Article
  4. Article
  5. Magnetic resonance imaging and spectroscopy in hepatic encephalopathy.Journal of clinical and experimental hepatology · 2015
    Review
  6. Review
  7. Article
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

7 authors at 3 institutions in 3 countries.

Falk-R MieseInstitute of Radiology, University Hospital Düsseldorf, MNR Clinic, Moorenstrasse 5, Düsseldorf 40225, Germany. dr.miese@gmx.de
Hans-Jörg Wittsack
Gerald Kircheis
Arne Holstein
Christian Mathys
Ulrich Mödder
Mathias Cohnen
Hanze University of Applied Sciences · NLUniversidad Autónoma de Nuevo León · MXDüsseldorf University Hospital · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo evaluate the spatial distribution of cerebral abnormalities in cirrhotic subjects with and without hepatic encephalopathy (HE) found with magnetization transfer imaging (MTI).

methodsNineteen cirrhotic patients graded from neurologically normal to HE grade 2 and 18 healthy control subjects underwent magnetic resonance imaging. They gave institutional-review-board-approved written consent. Magnetization transfer ratio (MTR) maps were generated from MTI. We tested for significant differences compared to the control group using statistical non-parametric mapping (SnPM) for a voxel-based evaluation.

resultsThe MTR of grey and white matter was lower in subjects with more severe HE. Changes were found in patients with cirrhosis without neurological deficits in the basal ganglia and bilateral white matter. The loss in magnetization transfer increased in severity and spatial extent in patients with overt HE. Patients with HE grade 2 showed an MTR decrease in white and grey matter: the maximum loss of magnetization transfer effect was located in the basal ganglia [SnPM (pseudo-)t = 17.98, P = 0.0001].

conclusionThe distribution of MTR changes in HE points to an early involvement of basal ganglia and white matter in HE.

Indexed as

AdultAgedBasal GangliaBrainData Interpretation, StatisticalFemaleHepatic EncephalopathyHumansMagnetic Resonance ImagingMaleMiddle AgedNeuropsychological TestsSeverity of Illness Index

Identifiers

PMID19891014
PMCPMC2773894
OpenAlexW2398736642

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.