Insight on automated lesion delineation methods for PET data
نویسندگان
چکیده
منابع مشابه
Insight on automated lesion delineation methods for PET data
BACKGROUND Defining tumour volume for treatment response and radiotherapy planning is challenging and prone to inter- and intra-observer variability. Various automated tumour delineation methods have been proposed in the literature, each having abilities and limitations. Therefore, there is a need to provide clinicians with practical information on delineation method selection. METHODS Six di...
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In this paper, we propose a new method for automated delineation of tumor boundaries in whole-body PET/CT by jointly using information from both PET and diagnostic CT images. Our method takes advantage of initial robust hot spot detection and segmentation performed in PET to provide a conservative tumor structure delineation. Using this estimate as initialization, a model for tumor appearance a...
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The aim of the study was to investigate the suitable segmentation method in small, low uptake and heterogeneous nodules of stage I lung adenocarcinoma.133 stage I lung adenocarcinoma patients with F-FDG PET/CT scans were enrolled in this retrospective study. All lesions were divided into different groups according to nodule density, nodule size, and the maximum standard uptake value (SUVmax) le...
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The identification of bone lesions is crucial in the diagnostic assessment of multiple myeloma (MM). 68Ga-Pentixafor PET/CT can capture the abnormal molecular expression of CXCR-4 in addition to anatomical changes. However, whole-body detection of dozens of lesions on hybrid imaging is tedious and error prone. It is even more difficult to identify lesions with a large heterogeneity. This study ...
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BACKGROUND This study compared manually delineated gross tumour volume (GTV) and automatically generated biological tumour volume (BTV) based on fluoro-deoxy-glucose (FDG) positron emission tomography (PET)/CT to assess the robustness of predefined PET algorithms for radiotherapy (RT) planning in routine clinical practice. METHODS RT-planning data from 20 consecutive patients (lung- (40%), oe...
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ژورنال
عنوان ژورنال: EJNMMI Research
سال: 2014
ISSN: 2191-219X
DOI: 10.1186/s13550-014-0069-8