Evidence map›Paper›PMID 34556025›Full record

ArticleThe journal of headache and pain2021

Leveraging high-resolution 7-tesla MRI to derive quantitative metrics for the trigeminal nerve and subnuclei of limbic structures in trigeminal neuralgia.

Judy Alper, Alan C Seifert, Gaurav Verma, Kuang-Han Huang, Yael Jacob, Ameen Al Qadi, John W Rutland, Sheetal Patel, Joshua Bederson, Raj K Shrivastava and 2 more

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
2.3field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 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

12 authors at 3 institutions in 1 country.

Judy AlperBioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue; Floor 1, New York, NY, 10029, USA. judy.alper@mssm.edu.ORCID http://orcid.org/0000-0002-3422-4032
Alan C SeifertBioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue; Floor 1, New York, NY, 10029, USA.
Gaurav VermaBioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue; Floor 1, New York, NY, 10029, USA.
Kuang-Han HuangBioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue; Floor 1, New York, NY, 10029, USA.
Yael JacobBioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue; Floor 1, New York, NY, 10029, USA.
Ameen Al QadiBioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue; Floor 1, New York, NY, 10029, USA.
John W RutlandBioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue; Floor 1, New York, NY, 10029, USA.
Sheetal PatelDepartment of Neurosurgery, Mount Sinai Hospital, New York, NY, USA.
Joshua BedersonDepartment of Neurosurgery, Mount Sinai Hospital, New York, NY, USA.
Raj K ShrivastavaDepartment of Neurosurgery, Mount Sinai Hospital, New York, NY, USA.
Bradley N DelmanDepartment of Diagnostic, Molecular, and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Priti BalchandaniBioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue; Floor 1, New York, NY, 10029, USA.
Icahn School of Medicine at Mount Sinai · USMount Sinai Hospital · USCity College of New York · US

Funding

7T Neurosurgical Mapping Protocol for Endoscopic Resection of Skull Base TumorsR01CA202911 · NCI · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI BALCHANDANI, PRITI · 2016 to 2020
$2.1M
Delineating Modulatory Control of Pain Using 7T Functional and Diffusion MRIK01NS105160 · NINDS · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI SEIFERT, ALAN C · 2018 to 2020
$402k
NCI NIH HHS NIH R01 CA202911NCI NIH HHS R01 CA202911NINDS NIH HHS K01 NS105160
6 · The paper itself

Abstract

backgroundTrigeminal Neuralgia (TN) is a chronic neurological disease that is strongly associated with neurovascular compression (NVC) of the trigeminal nerve near its root entry zone. The trigeminal nerve at the site of NVC has been extensively studied but limbic structures that are potentially involved in TN have not been adequately characterized. Specifically, the hippocampus is a stress-sensitive region which may be structurally impacted by chronic TN pain. As the center of the emotion-related network, the amygdala is closely related to stress regulation and may be associated with TN pain as well. The thalamus, which is involved in the trigeminal sensory pathway and nociception, may play a role in pain processing of TN. The objective of this study was to assess structural alterations in the trigeminal nerve and subregions of the hippocampus, amygdala, and thalamus in TN patients using ultra-high field MRI and examine quantitative differences in these structures compared with healthy controls.

methodsThirteen TN patients and 13 matched controls were scanned at 7-Tesla MRI with high resolution, T1-weighted imaging. Nerve cross sectional area (CSA) was measured and an automated algorithm was used to segment hippocampal, amygdaloid, and thalamic subregions. Nerve CSA and limbic structure subnuclei volumes were compared between TN patients and controls.

resultsCSA of the posterior cisternal nerve on the symptomatic side was smaller in patients (3.75 mm

conclusionsThese findings, generated through a highly sensitive 7 T MRI protocol, provide compelling support for the theory that TN neurobiology is a complex amalgamation of local structural changes within the trigeminal nerve and structural alterations in subnuclei of limbic structures directly and indirectly involved in nociception and pain processing.

Indexed as

Chronic PainTrigeminal NeuralgiaHumansMagnetic Resonance ImagingTrigeminal Nerve7-tesla MRIAmygdala subnucleiHippocampal subfieldsPainThalamic subnucleiTrigeminal neuralgia

Identifiers

PMID34556025
PMCPMC8461944
OpenAlexW3199643761

What OpenQuestion holds

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LicenceCC BY
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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.