Effect of Bergmeister papilla on disc parameters in spectral domain optical coherence tomography,Eye

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Effect of Bergmeister papilla on disc parameters in spectral domain optical coherence tomography
Eye ( IF 2.8 ) Pub Date : 2023-11-18 , DOI: 10.1038/s41433-023-02818-z
Yeoun Sook Chun _{1,

2} , Nam Ju Moon _{1,

2} , Ungsoo Samuel Kim _{2,

3} , Joon Hyung Yeo _{2,

3} , Jae Hoon Jeong _{2,

3}

Affiliation

Objectives

To investigate the morphological characteristics of Bergmeister papilla (BMP), a persistent hyaloid remnant tissue, and its effects on the measurements and repeatability of spectral-domain optical coherence tomography (OCT).

Subjects/Methods

The subjects of this prospective cross-sectional study including 83 patients with BMP and 76 unaffected individuals, all had open-angle structures. Images, including a 5-line raster and three consecutive optic disc cube scans centred on the optic disc, were acquired using the Cirrus high-definition OCT. BMP’s structural characteristics were classified based on the raster scan images, and repeatability of acquiring optic nerve head and retinal nerve fibre layer parameters acquisition was analysed by calculating the test-retest standard deviation (Sw), coefficient of variance (CV), and intraclass correlation coefficient.

Results

BMPs (n = 83) were categorised into lifting edge (LE) type (63.9%, n = 53), which partially covers the edge of the optic nerve head, and covering disc (CD) type (36.1%, n = 30), which completely covers the cupping area like a cap. The average cup-to-disc ratio (0.58 ± 0.21), vertical cup-to-disc ratio (0.55 ± 0.21), and cup volume (0.22 ± 0.22) of the CD type were lower than those of the LE type (0.66 ± 0.13, 0.64 ± 0.13, and 0.4 ± 0.27, respectively; all P < 0.05). Tolerability indices for repeatability of cup volume (Sw = 0.40 and CV = 0.36) and inferonasal (4 o’clock) retinal nerve fibre layer (Sw = 0.27 and CV = 0.25) in LE-type BMPs exceeded the cut-off value (0.22) and demonstrated stronger correlation with BMP location than that of the controls.

Conclusion

Caution should be exercised when interpreting OCT findings in eyes with BMP, as BMP can introduce a pitfall in OCT imaging.

中文翻译：

Bergmeister 乳头对谱域光学相干断层扫描中椎间盘参数的影响

目标

目的研究持续存在的玻璃体残余组织 Bergmeister 乳头 (BMP) 的形态特征及其对谱域光学相干断层扫描 (OCT) 测量和重复性的影响。

主题/方法

这项前瞻性横断面研究的受试者包括 83 名 BMP 患者和 76 名未受影响的个体，全部具有开角结构。使用 Cirrus 高清 OCT 采集图像，包括 5 线光栅和以视盘为中心的三个连续视盘立方体扫描。根据光栅扫描图像对BMP的结构特征进行分类，并通过计算重测标准差（ S w）、方差系数（CV）和组内数据，分析视神经乳头和视网膜神经纤维层参数采集的重复性。相关系数。

结果

BMP（ n = 83）分为部分覆盖视神经乳头边缘的提升边缘（LE）型（63.9％， n = 53）和覆盖盘（CD）型（36.1％， n = 30），像帽子一样完全覆盖拔罐区域。 CD型的平均杯盘比（0.58±0.21）、垂直杯盘比（0.55±0.21）和杯容积（0.22±0.22）均低于LE型（0.66±0.22）。分别为 0.13、0.64 ± 0.13 和 0.4 ± 0.27；所有P < 0.05）。 LE 型 BMP 中杯体积（ S w = 0.40 和 CV = 0.36）和鼻下（4 点钟）视网膜神经纤维层（ S w = 0.27 和 CV = 0.25）重复性的耐受性指数超过截止值（0.22）并且与 BMP 位置的相关性比对照组更强。