Tri-dimensional automatic segmentation of PET volumes based on measured source-to-background ratios:: influence of reconstruction algorithms

被引：313

作者：

Daisne, JF

Sibomana, M

Bol, A

Doumont, T

Lonneux, M

Grégoire, V

机构：

[1] Univ Catholique Louvain, St Luc Univ Hosp, Radiobiol Lab, Dept Radiat Oncol, B-1200 Brussels, Belgium

[2] Univ Catholique Louvain, St Luc Univ Hosp, Dept Nucl Med, Positron Emiss Tomogr Unit, B-1200 Brussels, Belgium

来源：

RADIOTHERAPY AND ONCOLOGY | 2003年 / 69卷 / 03期

关键词：

PET; source-to-background ratio; thresholding; segmentation; radiotherapy; head and neck;

D O I：

10.1016/S0167-8140(03)00270-6

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

A method for automatic volume segmentation of functional imaging based on a relationship between source-to-background ratio and the iso-activity level to be used is described. Such method, which has been established with radioactive spheres in a phantom, is independent of the a priori knowledge of the lesion of interest and is valid for small (> 2 ml) and/or poorly contrasted (S/B > 1.5) lesions. Accuracy varies slightly with the image reconstruction algorithm used. (C) 2003 Elsevier Ireland Ltd. All rights reserved.

引用

页码：247 / 250

页数：4

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