Lymph node segmentation from CT images using fast marching method

被引：46
|
作者：
Yan, JY
Zhuang, TG
Zhao, BS
Schwartz, LH
机构：
[1] Shanghai Jiao Tong Univ, Dept Biomed Engn, Shanghai 200030, Peoples R China
[2] Mem Sloan Kettering Canc Ctr, Dept Med Phys, New York, NY 10021 USA
[3] Mem Sloan Kettering Canc Ctr, Dept Radiol, New York, NY 10021 USA
来源：
COMPUTERIZED MEDICAL IMAGING AND GRAPHICS | 2004年 / 28卷 / 1-2期
关键词：
lymph node; image segmentation; CT images; fast marching;
D O I：
10.1016/j.compmedimag.2003.09.003
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
Accurate lymph node size analysis is important medically. This paper presents an improved fast marching method to perform semiautomatic segmentation for lymph node from CT images. In this work, we have incorporated the gray scale information of the target region into the fast marching speed term and have given a hard constraint for the stop criteria, instead of only using the spatial image gradient, to remedy the 'boundary leaking' problem of the traditional fast marching method. Various experimental results are provided to demonstrate the effectiveness of the proposed method. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：33 / 38
页数：6
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