Delineation of Biological Tumor Volume from Positron Emission Tomography Images in Nasopharyngeal Carcinoma
نویسندگان
چکیده
منابع مشابه
Background-Based Delineation of Internal Tumor Volumes on Static Positron Emission Tomography in a Phantom Study
Objective(s): Considering the fact that the standardized uptake value (SUV) of a normal lung tissue is expressed as x±SD, x+3×SD could be considered as the threshold value to outline the internal tumor volume (ITV) of a lung neoplasm. Methods: Three hollow models were filled with 55.0 kBq/mL fluorine18- fluorodeoxyglucose (18F-FDG) to represent tumors. The models were fixed to a barrel filled w...
متن کاملBackground-based Delineation of Internal Tumor Volume in Static Positron Emission Tomography in a Phantom Study
OBJECTIVES Considering the fact that the standardized uptake value (SUV) of a normal lung tissue is expressed as x±SD, x+3×SD could be considered as the threshold value to outline the internal tumor volume (ITV) of a lung neoplasm. METHODS Three hollow models were filled with 55.0 kBq/mL fluorine-18 fluorodeoxyglucose (18F-FDG) to represent tumors. The models were fixed to a barrel filled wit...
متن کاملbackground-based delineation of internal tumor volumes on static positron emission tomography in a phantom study
objective(s): considering the fact that the standardized uptake value (suv) of a normal lung tissue is expressed as x±sd, x+3×sd could be considered as the threshold value to outline the internal tumor volume (itv) of a lung neoplasm. methods: three hollow models were filled with 55.0 kbq/ml fluorine18- fluorodeoxyglucose (18f-fdg) to represent tumors. the models were fixed to a barrel filled w...
متن کاملApplication of computed tomography and magnetic resonance imaging fusion images for delineating gross tumor volume in three-dimensional conformal radiotherapy of nasopharyngeal carcinoma
Background: To evaluate computed tomography (CT) and magnetic resonance imaging (MRI) fusion images for delineating gross tumor volume (GTV) in three-dimensional conformal radiotherapy (3D-CRT) of nasophanrygeal carcinoma (NPC), and compare treatment outcomes between CT- and CT+MRI-based targets. Materials and Methods: A total of 120 NPC patients treated with 3D-CRT were included, in which, 60 ...
متن کاملDelineation of drain Structures from Positron Emission Tomography Images with Deformable Models
Segmentation of positron emission tomography (PET) images is a difficult task. In this study, we propose a new method for delineation of brain structures according to the tracer uptake. The method is based on a new deformable model which is particularly designed for extracting surfaces automatically from noisy images. The automation is achieved by using a global optimization algorithm for minim...
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ژورنال
عنوان ژورنال: Journal of Biomedical Science and Engineering
سال: 2014
ISSN: 1937-6871,1937-688X
DOI: 10.4236/jbise.2014.711085