Searching Collaborative Agents for Multi-plane Localization in 3D Ultrasound

• URL: http://arxiv.org/abs/2105.10626v1
• Date: Sat, 22 May 2021 02:48:23 GMT
• Title: Searching Collaborative Agents for Multi-plane Localization in 3D Ultrasound
• Authors: Xin Yang, Yuhao Huang, Ruobing Huang, Haoran Dou, Rui Li, Jikuan Qian, Xiaoqiong Huang, Wenlong Shi, Chaoyu Chen, Yuanji Zhang, Haixia Wang, Yi Xiong, Dong Ni
• Abstract summary: 3D ultrasound can contain multiple standard planes (SPs) in one shot. Manual SP localization in 3D US is challenging because of the low image quality, huge search space and large anatomical variability. We propose a novel multi-agent reinforcement learning framework to simultaneously localize multiple SPs in 3D US.
• Score: 15.573821037925143
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: 3D ultrasound (US) has become prevalent due to its rich spatial and diagnostic information not contained in 2D US. Moreover, 3D US can contain multiple standard planes (SPs) in one shot. Thus, automatically localizing SPs in 3D US has the potential to improve user-independence and scanning-efficiency. However, manual SP localization in 3D US is challenging because of the low image quality, huge search space and large anatomical variability. In this work, we propose a novel multi-agent reinforcement learning (MARL) framework to simultaneously localize multiple SPs in 3D US. Our contribution is four-fold. First, our proposed method is general and it can accurately localize multiple SPs in different challenging US datasets. Second, we equip the MARL system with a recurrent neural network (RNN) based collaborative module, which can strengthen the communication among agents and learn the spatial relationship among planes effectively. Third, we explore to adopt the neural architecture search (NAS) to automatically design the network architecture of both the agents and the collaborative module. Last, we believe we are the first to realize automatic SP localization in pelvic US volumes, and note that our approach can handle both normal and abnormal uterus cases. Extensively validated on two challenging datasets of the uterus and fetal brain, our proposed method achieves the average localization accuracy of 7.03 degrees/1.59mm and 9.75 degrees/1.19mm. Experimental results show that our light-weight MARL model has higher accuracy than state-of-the-art methods.

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