Papers › Attentive CT Lesion Detection Using Deep Pyramid Inference with Multi-Scale Booster

Attentive CT Lesion Detection Using Deep Pyramid Inference with Multi-Scale Booster

9 Jul 2019arXiv:1907.03958archive 2025-07-28

Qingbin Shao, Lijun Gong, Kai Ma, Hualuo Liu, Yefeng Zheng

Accurate lesion detection in computer tomography (CT) slices benefits pathologic organ analysis in the medical diagnosis process. More recently, it has been tackled as an object detection problem using the Convolutional Neural Networks (CNNs). Despite the achievements from off-the-shelf CNN models, the current detection accuracy is limited by the inability of CNNs on lesions at vastly different scales. In this paper, we propose a Multi-Scale Booster (MSB) with channel and spatial attention integrated into the backbone Feature Pyramid Network (FPN). In each pyramid level, the proposed MSB captures fine-grained scale variations by using Hierarchically Dilated Convolutions (HDC). Meanwhile, the proposed channel and spatial attention modules increase the network's capability of selecting relevant features response for lesion detection. Extensive experiments on the DeepLesion benchmark dataset demonstrate that the proposed method performs superiorly against state-of-the-art approaches.

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