Normative measurements of the frontal nerve by magnetic resonance imaging in an Australia cohort.

IF 1.4 4区医学 Q2 Medicine

Surgical and Radiologic Anatomy Pub Date : 2025-01-29 DOI:10.1007/s00276-025-03573-4

Dinan Perera, Khizar Rana, Carmelo Caltabiano, Sandy Patel, Dinesh Selva

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引用次数: 0

Abstract

Purpose: To report the normative dimensions of the frontal nerve (FN) on fat-suppressed suppressed gadolinium (fs-gad) enhanced magnetic resonance imaging (MRI).

Method: A retrospective cohort study of patients who underwent coronal fs-gad T1-weighted MRI. Orbits were excluded if there was unilateral or bilateral pathology of the FN or optic nerve sheath (ONS), incomplete MRI sequences, poor image quality or indiscernible FN on radiological assessment. The maximum diameter of the FN and ONS was measured.

Results: The mean age of participants was 58 ± 16 years and 50% were females (n = 42). The mean normative measurements (mean ± standard deviation) on coronal T1-weighted imaging: optic nerve sheath, 5.08 ± 0.67mm. On coronal fs-gad T1-weighted imaging: frontal nerve, 0.74 ± 0.18mm. No significant differences were found between male or female participants in both the frontal nerve (p = 0.913) or optic nerve sheath (p = 0.646). There was no significant correlation between age and mean diameter of the frontal nerve (r = 0.14, p = 0.067) or optic nerve sheath (r = 0.075, p = 0.336). Additionally, no significant difference was identified between the mean diameter of the frontal nerve (p = 0.075) and optic nerve sheath (p = 0.120) across age groups. The mean frontal nerve to optic nerve sheath ratio was 0.15 ± 0.04.

Conclusion: Normative dimensions of the FN may provide quantitative cut-offs that can aid the diagnosis of FN enlargement seen in instances such as IgG4-related ophthalmic disease (IgG4-ROD) and neoplastic perineural spread.

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澳大利亚队列中额神经磁共振成像的规范测量。

目的：报道脂肪抑制抑制钆（fs-gad）增强磁共振成像（MRI）对额神经（FN）的规范尺寸。方法：对接受冠状动脉粥样硬化t1加权MRI的患者进行回顾性队列研究。如果有单侧或双侧FN或视神经鞘（ONS）病变，MRI序列不完整，图像质量差或放射学评估无法识别FN，则排除眼眶。测量了FN和ONS的最大直径。结果：参与者的平均年龄为58±16岁，女性占50% （n = 42）。冠状面t1加权成像平均标准测量值（平均值±标准差）：视神经鞘，5.08±0.67mm。冠状面超声t1加权成像：额神经，0.74±0.18mm。男女受试者在额神经（p = 0.913）和视神经鞘（p = 0.646）上均无显著差异。年龄与额神经平均直径（r = 0.14, p = 0.067）、视神经鞘平均直径（r = 0.075, p = 0.336）无显著相关性。此外，不同年龄组的额神经平均直径（p = 0.075）和视神经鞘平均直径（p = 0.120）之间无显著差异。平均额神经与视神经鞘之比为0.15±0.04。结论：FN的标准尺寸可以提供定量的界限，有助于诊断与igg4相关的眼病（IgG4-ROD）和肿瘤神经周围扩散等情况下的FN扩大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surgical and Radiologic Anatomy Medicine-Pathology and Forensic Medicine

CiteScore

2.40

自引率

14.30%

发文量

期刊介绍： Anatomy is a morphological science which cannot fail to interest the clinician. The practical application of anatomical research to clinical problems necessitates special adaptation and selectivity in choosing from numerous international works. Although there is a tendency to believe that meaningful advances in anatomy are unlikely, constant revision is necessary. Surgical and Radiologic Anatomy, the first international journal of Clinical anatomy has been created in this spirit. Its goal is to serve clinicians, regardless of speciality-physicians, surgeons, radiologists or other specialists-as an indispensable aid with which they can improve their knowledge of anatomy. Each issue includes: Original papers, review articles, articles on the anatomical bases of medical, surgical and radiological techniques, articles of normal radiologic anatomy, brief reviews of anatomical publications of clinical interest. Particular attention is given to high quality illustrations, which are indispensable for a better understanding of anatomical problems. Surgical and Radiologic Anatomy is a journal written by anatomists for clinicians with a special interest in anatomy.