Multi-IMU with Online Self-Consistency for Freehand 3D Ultrasound Reconstruction

• URL: http://arxiv.org/abs/2306.16197v3
• Date: Wed, 19 Jul 2023 02:53:36 GMT
• Title: Multi-IMU with Online Self-Consistency for Freehand 3D Ultrasound Reconstruction
• Authors: Mingyuan Luo, Xin Yang, Zhongnuo Yan, Junyu Li, Yuanji Zhang, Jiongquan Chen, Xindi Hu, Jikuan Qian, Jun Cheng, Dong Ni
• Abstract summary: Freehand 3D US is a technique that provides a deeper understanding of scanned regions without increasing complexity. estimating elevation displacement and accumulation error remains challenging. We propose a novel online self-consistency network (OSCNet) using multiple inertial measurement units (IMUs) to improve reconstruction performance.
• Score: 12.097414194618134
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Ultrasound (US) imaging is a popular tool in clinical diagnosis, offering safety, repeatability, and real-time capabilities. Freehand 3D US is a technique that provides a deeper understanding of scanned regions without increasing complexity. However, estimating elevation displacement and accumulation error remains challenging, making it difficult to infer the relative position using images alone. The addition of external lightweight sensors has been proposed to enhance reconstruction performance without adding complexity, which has been shown to be beneficial. We propose a novel online self-consistency network (OSCNet) using multiple inertial measurement units (IMUs) to improve reconstruction performance. OSCNet utilizes a modal-level self-supervised strategy to fuse multiple IMU information and reduce differences between reconstruction results obtained from each IMU data. Additionally, a sequence-level self-consistency strategy is proposed to improve the hierarchical consistency of prediction results among the scanning sequence and its sub-sequences. Experiments on large-scale arm and carotid datasets with multiple scanning tactics demonstrate that our OSCNet outperforms previous methods, achieving state-of-the-art reconstruction performance.

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