Evidence map›Paper›PMID 34549377›Full record

ArticleEndocrine2022

Quantitative T1 mapping MRI for the assessment of extraocular muscle fibrosis in thyroid-associated ophthalmopathy.

Ruiqi Ma, Yue Geng, Lu Gan, Zhiyu Peng, Jinwei Cheng, Jie Guo, Jiang Qian

Abstract read
PubMed Publisher
In one paragraph

Article in Endocrine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 20% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Quantitative Multi-Parameter MRI Evaluation of Hashimoto's Thyroiditis Changes After Dietary Interventions.Medical science monitor : international medical journal of experimental and clinical research · 2025
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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

7 authors at 2 institutions in 1 country.

Ruiqi Ma *Department of Ophthalmology, Fudan Eye & ENT Hospital, Shanghai, China.
Yue Geng *Department of Radiology, Fudan Eye & ENT Hospital, Shanghai, China.
Lu GanDepartment of Ophthalmology, Fudan Eye & ENT Hospital, Shanghai, China.
Zhiyu PengDepartment of Ophthalmology, Fudan Eye & ENT Hospital, Shanghai, China.
Jinwei ChengDepartment of Ophthalmology, Fudan Eye & ENT Hospital, Shanghai, China.
Jie GuoDepartment of Ophthalmology, Fudan Eye & ENT Hospital, Shanghai, China. gjiexxx@163.com.
Jiang QianDepartment of Ophthalmology, Fudan Eye & ENT Hospital, Shanghai, China. qianjiang@fudan.edu.cn.ORCID http://orcid.org/0000-0002-4287-3497
Eye & ENT Hospital of Fudan University · CNChinese Academy of Medical Sciences & Peking Union Medical College · CN

Funding

National Natural Science Foundation of China 82000940Natural Science Foundation of Shanghai 20ZR1409500
6 · The paper itself

Abstract

purposeWe aimed to investigate the performance of T1 mapping and its histological correlation with extraocular muscle fibrosis in thyroid-associated ophthalmopathy (TAO).

methodsWe prospectively recruited 12 cases of active TAO, 12 cases of inactive TAO, and 15 cases of control subjects. All participants underwent magnetic resonance imaging (MRI) scan with pre-/postcontrast T1 mapping and short-time inversion-recovery (STIR) sequence. The images were analyzed to obtain precontrast T1, extracellular-volume (ECV) fraction on T1 mapping, and signal-intensity ratio (SIR) on STIR for each rectus. Muscle biopsy was performed at lateral rectus to quantify-collagen volume fraction, glycosaminoglycan (GAG)-volume fraction, and extracellular space component. The relationship between MRI and histopathology was examined with Pearson correlation coefficient.

resultsThe active TAO group was characterized with GAG accumulation, while the inactive TAO group presented with substantial fibrosis. The MRI parameters achieved acceptable interobserver and intraobserver agreement. The precontrast T1 and ECV remarkably increased in the TAO groups than the control group, and ECV positively correlated with collagen-volume fraction (r = 0.913) and extracellular-space component (r = 0.886) in the inactive TAO group. The SIR statistically increased in the active TAO group, and SIR positively correlated with GAG-volume fraction in all three groups. The performance of ECV (cutoff > 48.1%) to screen out extraocular muscle fibrosis in inactive TAO was 60.9% sensitivity and 93.3% specificity.

conclusionsThe ECV parameter on T1 mapping MRI is a reliable tool to quantify extraocular muscle fibrosis, providing insights into noninvasive evaluation of pathological changes in TAO orbit. TRIAL REGISTRATION NUMBER: ChiCTR2000040394; Date of registration: 28 November 2020.

Indexed as

Graves OphthalmopathyFibrosisHumansMagnetic Resonance ImagingMyocardiumOculomotor MusclesOrbitExtra-cellular volume fractionExtraocular muscleFibrosisT1 mappingThyroid-associated ophthalmopathy

Identifiers

PMID34549377
OpenAlexW3199502237

What OpenQuestion holds

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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.