Figure 3 | Scientific Reports

Figure 3

From: Distinguishing retinal angiomatous proliferation from polypoidal choroidal vasculopathy with a deep neural network based on optical coherence tomography

Figure 3

Grad-CAM of the model for six RAP images and three PCV images. The Grad-CAM images display the heat maps of regions used by the model for classifying PCV and RAP images. Grad-CAM was able to identify pathologic regions on the spectral-domain optical coherence tomography images. In PCV cases, Grad-CAM emphasized the sharp edge of the steeper RPED. In one of these PCV cases, the Bruch membrane directly under the RPED was also emphasized. Grad-CAM, gradient-weighted class activation mapping; RAP, retinal angiomatous proliferation; PCV, polypoidal choroidal vasculopathy; RPED, retinal pigment epithelial detachment.

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