Marquez Marilyn A, Nadelson Allie, Magraner Maria, Haddock Luis J, Fortun Jorge A
Bascom Palmer Eye Institute, Miller School of Medicine, University of Miami, Miami, FL, USA.
Clin Ophthalmol. 2023 Apr 17;17:1169-1177. doi: 10.2147/OPTH.S399684. eCollection 2023.
To evaluate the use of dynamic infrared (IR) imaging as a tool for the objective evaluation of symptomatic vitreous floaters and to correlate it with the patient symptomatology.
STUDY DESIGN/MATERIALS AND METHODS: Retrospective study that examined 66 eyes of 44 patients with symptomatic and asymptomatic vitreous opacities. Patients were imaged using the Heidelberg Spectralis dynamic infrared (IR) image in video mode to record the vitreous movements and shadow artifacts within 30 degrees of the center of the macula. Patients were also asked how symptomatic their vitreous floaters were from absent to severe. After reviewing IR videos and OCT, a grading system was created to evaluate the floaters and a masked reader was asked to evaluate the videos and OCT based on the grading system created.
A total of 66 eyes were identified and examined with the IR videos, 50 were symptomatic, and 16 were asymptomatic. After masked review and analysis of the IR videos, there were 4 characteristics that correlated with the patient's symptoms: size, location, movement, and density of obscuration of the OCT B Scan by the vitreous opacity. A table with grading of these characteristics was created to analyze how symptomatic patients were. A masked grader was asked to grade the videos and OCT using the grading system created. A positive correlation was found between the masked grader and the symptoms of patients. (0.70039; p < 0.00001).
Dynamic IR video capture of vitreous opacities is a new imaging technique that can qualitatively assess vitreous opacities in a way that correlates to a patient's symptoms. This imaging modality can provide a qualitative assessment of the patient's severity of symptoms based on the location, density, and movement of the visualized vitreous opacities in the imaged video.
评估动态红外（IR）成像作为一种客观评估有症状玻璃体混浊的工具，并将其与患者症状相关联。
研究设计/材料与方法：回顾性研究，检查了44例有症状和无症状玻璃体混浊患者的66只眼。使用海德堡光谱仪动态红外（IR）图像以视频模式对患者进行成像，记录黄斑中心30度范围内的玻璃体运动和阴影伪像。还询问患者其玻璃体混浊的症状程度，从无到严重。在查看IR视频和光学相干断层扫描（OCT）后，创建了一个分级系统来评估混浊物，并要求一名盲法阅片者根据创建的分级系统评估视频和OCT。
共识别并使用IR视频检查了66只眼，其中50只眼有症状，16只眼无症状。在对IR视频进行盲法回顾和分析后，有4个特征与患者症状相关：玻璃体混浊在OCT B扫描上的大小、位置、运动和遮挡密度。创建了一个这些特征的分级表来分析患者的症状程度。要求一名盲法分级者使用创建的分级系统对视频和OCT进行分级。在盲法分级者和患者症状之间发现了正相关（0.70039；p<0.00001）。
动态IR视频捕捉玻璃体混浊是一种新的成像技术，它可以以与患者症状相关的方式定性评估玻璃体混浊。这种成像方式可以根据成像视频中可视化玻璃体混浊的位置、密度和运动，对患者症状的严重程度进行定性评估。
