Semiautomated MRI-Based Method for Orbital Volume and Contour Analysis.
Journal
Ophthalmic plastic and reconstructive surgery
ISSN: 1537-2677
Titre abrégé: Ophthalmic Plast Reconstr Surg
Pays: United States
ID NLM: 8508431
Informations de publication
Date de publication:
21 Mar 2024
21 Mar 2024
Historique:
medline:
27
3
2024
pubmed:
27
3
2024
entrez:
27
3
2024
Statut:
aheadofprint
Résumé
The architecture of the orbital cavity is intricate, and precise measurement of its growth is essential for managing ocular and orbital pathologies. Most methods for those measurements are by CT imaging, although MRI for soft tissue assessment is indicated in many cases, specifically pediatric patients. This study introduces a novel semiautomated MRI-based approach for depicting orbital shape and dimensions. A retrospective cohort study. Patients with at least 1 normal orbit who underwent both CT and MRI imaging at a single center from 2015 to 2023. Orbital dimensions included volume, horizontal and vertical lengths, and depth. These were determined by manual segmentation followed by 3-dimensional image processing software. Differences in orbital measurements between MRI and CT scans. Thirty-one patients (mean age 47.7 ± 23.8 years, 21 [67.7%]) females, were included. The mean differences in delta values between orbital measurements on CT versus MRI were: volume 0.03 ± 2.01 ml, horizontal length 0.53 ± 2.12 mm, vertical length, 0.36 ± 2.53 mm, and depth 0.97 ± 3.90 mm. The CT and. MRI orbital measurements were strongly correlated: volume (r = 0.92, p < 0.001), horizontal length (r = 0.65, p < 0.001), vertical length (r = 0.57, p = 0.001), and depth (r = 0.46, p = 0.009). The mean values of all measurements were similar on the paired-samples t test: p = 0.9 for volume (30.86 ± 5.04 ml on CT and 30.88 ± 4.92 ml on MRI), p = 0.2 for horizontal length, p = 0.4 for vertical length, and p = 0.2 for depth. We present an innovative semiautomated method capable of calculating orbital volume and demonstrating orbital contour by MRI validated against the gold standard CT-based measurements. This method can serve as a valuable tool for evaluating diverse orbital processes.
Identifiants
pubmed: 38534059
doi: 10.1097/IOP.0000000000002656
pii: 00002341-990000000-00370
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
Copyright © 2024 The American Society of Ophthalmic Plastic and Reconstructive Surgery, Inc.
Déclaration de conflit d'intérêts
The authors have no financial or conflicts of interest to disclose.
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