AMS-PAN: Breast Ultrasound Image Segmentation Model Combining Attention Mechanism and Multi-Scale Features

•A deep learning model with PAN as the base structure was designed for the low definition of ultrasound breast images, and the effectiveness of this model was verified on BUSI and OASBUD.•A multi-scale feature extraction module is designed, which can acquire deep image local information while preserving shallow image global information.•The attention module called SCA is added to the decoder based on PAN to prompt the model to pay attention to the edges and details in the image and strengthen the segmentation ability of the model.