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Abstract #2127

Point-Guided 3D U-SAM: MRI abdominal Segmentation Model using 3D Interactive U-Net and Segment Anything Model

Yuta Sugimoto1, Naoto Fujita1, Daiki Tamada2, Satoshi Funayama3, Shintaro Ichikawa3, Satoshi Goshima3, and Yasuhiko Terada1
1Graduate School of Science and Technology, University of Tsukuba, Tsukuba, Japan, 2Department of Radiology, University of Wisconsin-Madison, Madison, WI, United States, 3Department of Radiology, Hamamatsu University School of Medicine, Hamamatsu, Japan

Synopsis

Keywords: Segmentation, Segmentation, Deep Learning, Digestive

Motivation: In abdominal MRI segmentation tasks, the need for high-quality support information for Segment Anything Model (SAM)-driven segmentation in limited data scenarios has motivated the search for an architecture with high performance and minimal support information requirements.

Goal(s): Our objective is to design a user-friendly architecture for segmentation, focusing on using only support information within the region of interest. We aim to verify its high-performance capabilities.

Approach: We developed Point-Guided 3D U-SAM, combining SAM and 3D U-Net with point-based support input. We compared its segmentation performance with existing methods.

Results: The model excelled in abdominal MRI segmentation across various contrast levels, ensuring high performance.

Impact: Point-Guided 3D U-SAM, which combines Segment Anything Model (SAM) and 3D U-Net with point-based inputs, would advance semi-automated organ segmentation, particularly where contrast is poor, such as MRCP, and in abdominal imaging, significantly reducing manual effort in clinical segmentation.

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Keywords