Neural implicit surface reconstruction of freehand 3D ultrasound volume with geometric constraints

Hongbo Chen, Logiraj Kumaralingam, Shuhang Zhang, Sheng Song, Fayi Zhang, Haibin Zhang, Thanh-Tu Pham, Kumaradevan Punithakumar, Edmond H. M. Lou, Yuyao Zhang, Lawrence H. Le, Rui Zheng

Abstract: Highlights•A self-supervised surface reconstruction method for freehand 3D ultrasound imaging.•Dual novel geometric constraints optimize the signed distance functions end-to-end.•Adaptable to various anatomical structures and robust against noisy inputs.•Enhanced visual quality with smooth, continuous shape representations.