Evidence map›Paper›PMID 25807928›Full record

ArticleAnnals of neurology2015

Voxel-based morphometric magnetic resonance imaging (MRI) postprocessing in MRI-negative epilepsies.

Z Irene Wang, Stephen E Jones, Zeenat Jaisani, Imad M Najm, Richard A Prayson, Richard C Burgess, Balu Krishnan, Aleksandar Ristic, Chong H Wong, William Bingaman and 2 more

Open access · greenAbstract read
In one paragraph

Article in Annals of neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed, 1 pooled it
7.6field-weighted citation impact, top 2% 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

80 citing papers in PubMed, 1 synthesis or guideline pooled it, 150 citations in OpenAlex.

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  12. Hidden inside the sulci: Utility of voxel-based morphometric analysis program in localizing precuneus epilepsy.Epileptic disorders : international epilepsy journal with videotape · 2025
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20 more citing papers are in PubMed but not listed here.

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

12 authors at 4 institutions in 3 countries.

Z Irene WangEpilepsy Center, Cleveland Clinic, Cleveland, OH.
Stephen E JonesDepartment of Diagnostic Radiology, Mellen Imaging Center, Cleveland Clinic, Cleveland, OH.
Zeenat JaisaniSanford USD Medical Center, Sioux Falls, SD.
Imad M NajmEpilepsy Center, Cleveland Clinic, Cleveland, OH.
Richard A PraysonDepartment of Anatomic Pathology, Cleveland Clinic, Cleveland, OH.
Richard C BurgessEpilepsy Center, Cleveland Clinic, Cleveland, OH.
Balu KrishnanEpilepsy Center, Cleveland Clinic, Cleveland, OH.
Aleksandar RisticClinic of Neurology, Epilepsy Center, Clinical Center of Serbia, Belgrade, Serbia.
Chong H WongDepartment of Neurology, Westmead Hospital, Sydney, Australia.
William BingamanDepartment of Neurosurgery, Cleveland Clinic, Cleveland, OH.
Jorge A Gonzalez-MartinezDepartment of Neurosurgery, Cleveland Clinic, Cleveland, OH.
Andreas V AlexopoulosEpilepsy Center, Cleveland Clinic, Cleveland, OH.
Cleveland Clinic · USCentar za Promociju Nauke · RSSanford USD Medical Center · USWestmead Hospital · AU

Funding

Interactive software for semiautomated analysis of structural brain imagesR01NS074980 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LEAHY, RICHARD M, SHATTUCK, DAVID W · 2011 to 2021
$5.0M
NINDS NIH HHS R01 NS074980NINDS NIH HHS R01-NS074980
6 · The paper itself

Abstract

objectiveIn the presurgical workup of magnetic resonance imaging (MRI)-negative (MRI(-) or "nonlesional") pharmacoresistant focal epilepsy (PFE) patients, discovering a previously undetected lesion can drastically change the evaluation and likely improve surgical outcome. Our study utilizes a voxel-based MRI postprocessing technique, implemented in a morphometric analysis program (MAP), to facilitate detection of subtle abnormalities in a consecutive cohort of MRI(-) surgical candidates.

methodsIncluded in this retrospective study was a consecutive cohort of 150 MRI(-) surgical patients. MAP was performed on T1-weighted MRI, with comparison to a scanner-specific normal database. Review and analysis of MAP were performed blinded to patients' clinical information. The pertinence of MAP(+) areas was confirmed by surgical outcome and pathology.

resultsMAP showed a 43% positive rate, sensitivity of 0.9, and specificity of 0.67. Overall, patients with the MAP(+) region completely resected had the best seizure outcomes, followed by the MAP(-) patients, and patients who had no/partial resection of the MAP(+) region had the worst outcome (p < 0.001). Subgroup analysis revealed that visually identified subtle findings are more likely correct if also MAP(+) . False-positive rate in 52 normal controls was 2%. Surgical pathology of the resected MAP(+) areas contained mainly non-balloon-cell focal cortical dysplasia (FCD). Multiple MAP(+) regions were present in 7% of patients.

interpretationMAP can be a practical and valuable tool to: (1) guide the search for subtle MRI abnormalities and (2) confirm visually identified questionable abnormalities in patients with PFE due to suspected FCD. A MAP(+) region, when concordant with the patient's electroclinical presentation, should provide a legitimate target for surgical exploration.

Indexed as

Outcome Assessment, Health CareAdultAgedEpilepsies, PartialFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedRetrospective StudiesSensitivity and SpecificityYoung Adult

Identifiers

PMID25807928
PMCPMC4447617
OpenAlexW1783832247

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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.