RUSH2A研究中静态视野计-OCT地形叠加分析的发现
Static Perimetry-OCT Topographical Overlay Findings in the RUSH2A Study.
文献信息
| PMID | 42986169 |
|---|---|
| 原文 | 在 PubMed 查看原文 ↗ |
| 发表日期 | 2026 |
| 作者 | Audra K Miller |
| 作者单位 | Casey Eye Institute - Oregon Health & Science University, Portland, OR, USA. |
| 期刊 | Translational vision science & technology |
| SCI 分区 | Q2 |
| IF | 3.3 |
| 研究类型 | 临床研究 · 临床 |
| 所属专科 | 耳科 |
中文摘要
目的: 光学相干断层扫描(OCT)上的椭圆体带(EZ)缺失与静态视野计(SP)敏感度下降相关。我们在USH2A相关视网膜色素变性(RP)中探索一种地形叠加分析,以开发结构和功能变化的新型终点指标。
方法: 受试者(N = 105)接受SP检查(基线3次;此后每年1次,持续4年)和每年OCT检查。对B扫描进行分割以勾画EZ轮廓。叠加分析使用视野建模与分析(VFMA)软件,将视野山(HOV)叠加到en face红外(IR)眼底图像上,并附上从OCT容积扫描分割得到的EZ轮廓。将EZ边界及跨越EZ边界的三条条带射线投射到HOV上。测量HOV体积、HOV斜率、平均敏感度(MS)和峰值敏感度。使用混合效应模型估计变化率。
结果: 4年内,EZ内所有指标均显著下降,但斜率和峰值敏感度除外。所有条带的MS均下降,外侧条带的进展大于内侧条带。内侧条带的体积和斜率下降大于外侧条带。
结论: SP-OCT叠加分析显示EZ边缘外侧的敏感度丧失更快。EZ外侧最宽的条带进展最大,提示EZ边缘远端发生更快速的视力丧失。斜率在最宽的内侧条带内进展最明显,这可能意味着斜率变化是EZ缺失的前兆。
转化意义: 本研究利用成像和功能叠加技术,探索表征USH2A相关RP疾病进展的新型终点指标和概念。
英文摘要
PURPOSE: Ellipsoid zone (EZ) loss on optical coherence tomography (OCT) correlates with diminished sensitivity on static perimetry (SP). We explore a topographical overlay analysis in USH2A-related retinitis pigmentosa (RP) to develop novel endpoints of structural and functional change.
METHODS: Subjects (N = 105) had SP (3× baseline; once annually for 4 years) and annual OCT. B-scans were segmented to outline the EZ. Overlays used visual field modeling and analysis (VFMA) software to superimpose the hill of vision (HOV) onto the en face infrared (IR) fundus image with EZ contours segmented from OCT volume scans. EZ border and three ribbons straddling the EZ border were ray cast onto the HOV. The HOV volume, HOV slope, mean sensitivity (MS), and peak sensitivity were measured. Mixed effect models were used to estimate change rates.
RESULTS: Significant decrease over 4 years was found in all measures within the EZ, except slope and peak sensitivity. MS decreased for all ribbons, with outer ribbons showing greater progression than inner ribbons. Inner ribbons had larger decreases in volume and slope than outer ribbons.
CONCLUSIONS: SP-OCT overlay analysis showed faster loss of sensitivity outside the EZ margin. The widest ribbon outside the EZ showed greatest progression, suggesting more rapid vision loss occurring distal to the EZ margin. Slope progressed most within the widest inner ribbon, which could mean that slope change is a precursor to EZ loss.
TRANSLATIONAL RELEVANCE: This research explores novel endpoints and concepts to characterize the disease progression in USH2A-related RP using imaging and functional overlay techniques.