2015年9月15日 · All OCT models allow for the change of the size, length and width of the line scans, depending on the pathology imaged. Current OCT systems also possess recognition software and progression or change functions to accurately track and monitor progression over time based on each model’s normative data (Table 4).

2024年8月20日 · OCTCube-M first developed OCTCube, a 3D foundation model pre-trained on 26,685 3D OCT volumes encompassing 1.62 million 2D OCT images. It then exploits a novel multi-modal contrastive learning framework COEP to integrate other retinal imaging modalities, such as fundus autofluorescence and infrared retinal imaging, into OCTCube, efficiently ...

2013年9月1日 · The volume of the cube (cube volume [CV]) and the mean thickness of the cube (cube average thickness [CAT]) are generated by internal Cirrus algorithms. In this study, the macular cube protocol was considered to be normal if: (a) it did not exhibit retinal alterations, (b) the strength of the signal exceeded 5 over 10, and (c) it was correctly ...

2023年9月1日 · In this work we present a novel fully automatic methodology to perform the synthesis of intermediate slices of OCT image volumes in an unsupervised manner. To perform this synthesis, we propose a fully convolutional neural network architecture that uses information from two adjacent slices to generate the intermediate synthetic slice.

2015年5月9日 · Cube scans are ‘volume’ or ‘3D’ scans analogous to computed tomography or magnetic resonance scans that acquire volumetric cubes of data. SD-OCT machines acquire a rapid series of line scans (B-scans), generally in a 6 mm × …

Here, we report 3D OCT over cubic meter volumes using a long coherence length, 1310 nm vertical-cavity surface-emitting laser and silicon photonic integrated circuit dual-quadrature receiver technology combined with enhanced signal processing.

2023年1月1日 · Saxena et al. suggested three OCT biomarkers for DME—central subfield thickness (CST), cube average thickness (CAT) and cube volume (CV). CST measured on spectral domain-OCT (SD-OCT) is used to assess the retinal thickness and thus the degree of DME. It is measured in the central circle of 1 mm diameter on the circular ETDRS grid map.

2022年1月1日 · Cube scans are volume or 3D scans analogous to computed tomography or magnetic resonance scans that acquire volumetric cubes of data. SD-OCT machines acquire a rapid series of line scans (B-scans), typically in a 6 mm × 6 mm square area centered on the fovea. The scans are generally at relatively low resolution to minimize the time of scanning.

Does the OCT Do It Better? The 6mm x 6mm cube is captured with 200 A-scans per B-scan, 200 B-scans. AutoCenterTM function automatically centers the 1.73mm radius peripapillary calculation circle around the disc for precise placement and repeatable registration. The RNFL thickness map shows the patterns and thickness of the nerve fiber layer.

The ordinate shows the volume of the entire OCT cube (mm³), the abscissa reveals the different time points. The diamond indicates the mean, the horizontal line the median of the volume. The...