Advanced Characterization of Vitreous Hyperreflective Dots via OCT-Derived Metrics: A Cross-Sectional Study.

IF 2.6 3区 医学 Q2 OPHTHALMOLOGY
Ophthalmology and Therapy Pub Date : 2025-08-01 Epub Date: 2025-06-16 DOI:10.1007/s40123-025-01182-3
William Rojas-Carabali, Jinghan Lin, Paola Saboya-Galindo, Eunice Jin Hui Goh, Joewee Boon, Carlos Cifuentes-González, Rupesh Agrawal
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引用次数: 0

Abstract

Introduction: The use of optical coherence tomography (OCT) as a potential tool for the measurement of vitreous inflammation has been previously described as a more objective and reproducible method when compared to historically known subjective scales. In this study, our objective is to evaluate OCT's ability to characterize vitreous hyperreflective dots (VHDs) across eyes with varying conditions, including healthy controls, vitreous degenerations, intraocular inflammation, and others.

Methods: We utilized a purpose built semiautomated software comprising an image binarization tool to segment OCT scans of 61 eyes, comprising 15 eyes with vitreous degenerations, 20 uveitic eyes, 17 healthy controls, and 9 with other eye conditions. The vitreous dot index (VDI) was computed by determining the number of dots (VDI-N) and the dot area (VDI-A). VHDs were identified as the hyperreflective shadows observed in OCT images within segmented areas of the vitreous, stratified as zones I, II, and III. We compared the difference between groups using analysis of variance (ANOVA). Intergrader reliability was evaluated by comparing results obtained by two trained independent graders, employing intraclass correlation coefficient (ICC) analysis.

Results: When the medians of VDI-N and VDI-A were compared in healthy controls, patients with uveitis, patients with vitreous degeneration, and others, patients with vitreous degeneration had the highest VDI-N median (2.61 ± 2.76 mm3 p < 0.001) followed by healthy controls (0.48 ± 0.87 mm3 p < 0.001) in zone l. As for VDI-A in the same zone, healthy controls had the greatest median (0.71 ± 0.96, p < 0.001) among the different groups. In zone II, uveitis and the healthy control group had similar medians for VDI-N (0.03 ± 0.36 and 0.03 ± 0.29, p < 0.001 respectably) and VDI-A was greater in the vitreous degeneration group (0.40 ± 0.50 p < 0.001). Zone III had lower VDI-N and VDI-A; patients with uveitis and patients with vitreous degeneration had equal VDI-N (0.00 ± 0.03 p < 0.001) and patients with uveitis had the higher VDI-A among the rest of the groups (0.00 ± 0.65 p < 0.001). For the total vitreous (TV), the highest VDI-N was found in patients with vitreous degeneration (2.92 ± 2.85 p < 0.001) while the highest VDI-A was in the uveitis group patients (0.66 ± 1.31) p < 0.001. The average vitreous dot density index and the average vitreous dot reflectivity index (VDRI) in the TV were greater in patients with vitreous degeneration (2.15 × 10-5 ± 1.52 × 10-5) and patients with uveitis (0.13 ± 0.08), respectively. When comparing VDI markers using a Kruskal-Wallis nonparametric one-way ANOVA test, we found that only the average vitreous dot reflectivity index in zone I and VDI-A in TV were statistically significant. However, only the reflectivity index was significant when comparing patients with vitreous degeneration and healthy controls in a pairwise analysis.

Conclusion: While vitreous inflammation scales must evolve toward more objective metrics, our findings suggest that VHDs on OCT can act as confounders, as they may represent normal vitreous cells or even the presence of vitreous degeneration. The reflectivity index appears to have better reproducibility than simple count; however, when searching for a more objective parameter for measuring vitreous inflammation, vitreous degeneration must be considered.

通过oct衍生的度量对玻璃体高反射点的高级表征:一项横断面研究。
与历史上已知的主观量表相比,光学相干断层扫描(OCT)作为玻璃体炎症测量的潜在工具,先前被描述为一种更客观和可重复的方法。在本研究中,我们的目的是评估OCT在不同情况下(包括健康对照、玻璃体变性、眼内炎症等)识别玻璃体高反射点(vhd)的能力。方法:我们使用专用的半自动软件,包括图像二值化工具,分割61只眼睛的OCT扫描,包括15只玻璃体变性眼,20只黄斑眼,17只健康对照,9只其他眼病。通过确定点数(VDI- n)和点面积(VDI- a)计算玻璃体点指数(VDI)。vhd被确定为在玻璃体分割区域的OCT图像中观察到的高反射阴影,分层为I区,II区和III区。我们使用方差分析(ANOVA)比较组间差异。采用类内相关系数(ICC)分析,通过比较两名训练有素的独立评分者的结果来评估评分者的信度。结果:比较健康对照组、葡萄膜炎患者、玻璃体变性患者和其他患者的VDI-N和VDI-A中位数,玻璃体变性患者的VDI-N中位数最高(2.61±2.76 mm3 p 3 p -5±1.52 × 10-5),葡萄膜炎患者的VDI-N中位数最高(0.13±0.08)。当使用Kruskal-Wallis非参数单因素方差分析比较VDI标记时,我们发现只有电视中I区玻璃体点平均反射率指数和VDI- a具有统计学意义。然而,在两两分析中,只有玻璃体变性患者和健康对照者的反射率指数有显著性。结论:虽然玻璃体炎症量表必须向更客观的指标发展,但我们的研究结果表明,OCT上的vhd可以作为混杂因素,因为它们可能代表正常的玻璃体细胞,甚至可能代表玻璃体变性的存在。反射率指数比简单计数具有更好的再现性;然而,在寻找更客观的测量玻璃体炎症的参数时,必须考虑玻璃体变性。
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来源期刊
Ophthalmology and Therapy
Ophthalmology and Therapy OPHTHALMOLOGY-
CiteScore
4.20
自引率
3.00%
发文量
157
审稿时长
6 weeks
期刊介绍: Aims and Scope Ophthalmology and Therapy is an international, open access, peer-reviewed (single-blind), and rapid publication journal. The scope of the journal is broad and will consider all scientifically sound research from preclinical, clinical (all phases), observational, real-world, and health outcomes research around the use of ophthalmological therapies, devices, and surgical techniques. The journal is of interest to a broad audience of pharmaceutical and healthcare professionals and publishes original research, reviews, case reports/series, trial protocols and short communications such as commentaries and editorials. Ophthalmology and Therapy will consider all scientifically sound research be it positive, confirmatory or negative data. Submissions are welcomed whether they relate to an international and/or a country-specific audience, something that is crucially important when researchers are trying to target more specific patient populations. This inclusive approach allows the journal to assist in the dissemination of quality research, which may be considered of insufficient interest by other journals. Rapid Publication The journal’s publication timelines aim for a rapid peer review of 2 weeks. If an article is accepted it will be published 3–4 weeks from acceptance. The rapid timelines are achieved through the combination of a dedicated in-house editorial team, who manage article workflow, and an extensive Editorial and Advisory Board who assist with peer review. This allows the journal to support the rapid dissemination of research, whilst still providing robust peer review. Combined with the journal’s open access model this allows for the rapid, efficient communication of the latest research and reviews, fostering the advancement of ophthalmic therapies. Open Access All articles published by Ophthalmology and Therapy are open access. Personal Service The journal’s dedicated in-house editorial team offer a personal “concierge service” meaning authors will always have an editorial contact able to update them on the status of their manuscript. The editorial team check all manuscripts to ensure that articles conform to the most recent COPE, GPP and ICMJE publishing guidelines. This supports the publication of ethically sound and transparent research. Digital Features and Plain Language Summaries Ophthalmology and Therapy offers a range of additional features designed to increase the visibility, readership and educational value of the journal’s content. Each article is accompanied by key summary points, giving a time-efficient overview of the content to a wide readership. Articles may be accompanied by plain language summaries to assist readers who have some knowledge of, but not in-depth expertise in, the area to understand the scientific content and overall implications of the article. The journal also provides the option to include various types of digital features including animated abstracts, video abstracts, slide decks, audio slides, instructional videos, infographics, podcasts and animations. All additional features are peer reviewed to the same high standard as the article itself. If you consider that your paper would benefit from the inclusion of a digital feature, please let us know. Our editorial team are able to create high-quality slide decks and infographics in-house, and video abstracts through our partner Research Square, and would be happy to assist in any way we can. For further information about digital features, please contact the journal editor (see ‘Contact the Journal’ for email address), and see the ‘Guidelines for digital features and plain language summaries’ document under ‘Submission guidelines’. For examples of digital features please visit our showcase page https://springerhealthcare.com/expertise/publishing-digital-features/ Publication Fees Upon acceptance of an article, authors will be required to pay the mandatory Rapid Service Fee of €5250/$6000/£4300. The journal will consider fee discounts and waivers for developing countries and this is decided on a case by case basis. Peer Review Process Upon submission, manuscripts are assessed by the editorial team to ensure they fit within the aims and scope of the journal and are also checked for plagiarism. All suitable submissions are then subject to a comprehensive single-blind peer review. Reviewers are selected based on their relevant expertise and publication history in the subject area. The journal has an extensive pool of editorial and advisory board members who have been selected to assist with peer review based on the afore-mentioned criteria. At least two extensive reviews are required to make the editorial decision, with the exception of some article types such as Commentaries, Editorials, and Letters which are generally reviewed by one member of the Editorial Board. Where reviewer recommendations are conflicted, the editorial board will be contacted for further advice and a presiding decision. Manuscripts are then either accepted, rejected or authors are required to make major or minor revisions (both reviewer comments and editorial comments may need to be addressed). Once a revised manuscript is re-submitted, it is assessed along with the responses to reviewer comments and if it has been adequately revised it will be accepted for publication. Accepted manuscripts are then copyedited and typeset by the production team before online publication. Appeals against decisions following peer review are considered on a case-by-case basis and should be sent to the journal editor. Preprints We encourage posting of preprints of primary research manuscripts on preprint servers, authors’ or institutional websites, and open communications between researchers whether on community preprint servers or preprint commenting platforms. Posting of preprints is not considered prior publication and will not jeopardize consideration in our journals. Authors should disclose details of preprint posting during the submission process or at any other point during consideration in one of our journals. Once the manuscript is published, it is the author’s responsibility to ensure that the preprint record is updated with a publication reference, including the DOI and a URL link to the published version of the article on the journal website. Please follow the link for further information on preprint sharing: https://www.springer.com/gp/authors-editors/journal-author/journal-author-helpdesk/submission/1302#c16721550 Copyright Ophthalmology and Therapy''s content is published open access under the Creative Commons Attribution-Noncommercial License, which allows users to read, copy, distribute, and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited. The author assigns the exclusive right to any commercial use of the article to Springer. For more information about the Creative Commons Attribution-Noncommercial License, click here: http://creativecommons.org/licenses/by-nc/4.0. Contact For more information about the journal, including pre-submission enquiries, please contact christopher.vautrinot@springer.com.
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