Automatic 3D kidney segmentation based on shape constrained GC-OAAM

Xinjian Chen; Ronald M. Summers; Jianhua Yao

doi:10.1117/12.878062

14 March 2011 Automatic 3D kidney segmentation based on shape constrained GC-OAAM

Xinjian Chen, Ronald M. Summers, Jianhua Yao

Proceedings Volume 7962, Medical Imaging 2011: Image Processing; 79623M (2011) https://doi.org/10.1117/12.878062
Event: SPIE Medical Imaging, 2011, Lake Buena Vista (Orlando), Florida, United States

Abstract

The kidney can be classified into three main tissue types: renal cortex, renal medulla and renal pelvis (or collecting system). Dysfunction of different renal tissue types may cause different kidney diseases. Therefore, accurate and efficient segmentation of kidney into different tissue types plays a very important role in clinical research. In this paper, we propose an automatic 3D kidney segmentation method which segments the kidney into the three different tissue types: renal cortex, medulla and pelvis. The proposed method synergistically combines active appearance model (AAM), live wire (LW) and graph cut (GC) methods, GC-OAAM for short. Our method consists of two main steps. First, a pseudo 3D segmentation method is employed for kidney initialization in which the segmentation is performed slice-by-slice via a multi-object oriented active appearance model (OAAM) method. An improved iterative model refinement algorithm is proposed for the AAM optimization, which synergistically combines the AAM and LW method. Multi-object strategy is applied to help the object initialization. The 3D model constraints are applied to the initialization result. Second, the object shape information generated from the initialization step is integrated into the GC cost computation. A multi-label GC method is used to segment the kidney into cortex, medulla and pelvis. The proposed method was tested on 19 clinical arterial phase CT data sets. The preliminary results showed the feasibility and efficiency of the proposed method.

Citation Download Citation

Xinjian Chen, Ronald M. Summers, and Jianhua Yao "Automatic 3D kidney segmentation based on shape constrained GC-OAAM", Proc. SPIE 7962, Medical Imaging 2011: Image Processing, 79623M (14 March 2011); https://doi.org/10.1117/12.878062

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