Figure 2 | Scientific Reports

Figure 2

From: Prediction of oxygen requirement in patients with COVID-19 using a pre-trained chest radiograph xAI model: efficient development of auditable risk prediction models via a fine-tuning approach

Figure 2

Representative class activation maps (CAMs) with incorrect lesion localization. (a,b) Cardiomegaly (PA), (c,d) Cardiomegaly (AP), (e,f) Pneumothorax (PA), (g,h) Other interstitial opacity (AP), (i,j) Other interstitial opacity (AP), (k,l) Pneumothorax (AP). (b) Attention map captures the tip and body of the implantable cardioverter defibrillator (ICD) rather than the enlarged heart, (d) Attention map captures pulmonary edema along with the enlarged outline of heart in cardiomegaly, (f) Attention map captures subcutaneous emphysema along with pneumothorax, (h,j) Attention map failed to capture the full area of diffuse interstitial opacities, (i) Attention map captures chest tube instead of pneumothorax.

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