Subcentimeter Tumor Lesion Delineation for High-Resolution 18F-FDG PET Images: Optimizing Correction for Partial-Volume Effects
نویسندگان
چکیده
منابع مشابه
A Partial Volume Effect Correction Tailored for 18F-FDG-PET Oncological Studies
We have developed, optimized, and validated a method for partial volume effect (PVE) correction of oncological lesions in positron emission tomography (PET) clinical studies, based on recovery coefficients (RC) and on PET measurements of lesion-to-background ratio (L/B m) and of lesion metabolic volume. An operator-independent technique, based on an optimised threshold of the maximum lesion upt...
متن کامل18F-FDG-PET-based tumor delineation in cervical cancer: threshold contouring and lesion volumes.
OBJECTIVE To evaluate a semi-automated PET-image tumor segmentation algorithm for gross tumor volume (GTV) delineation in patients with locally advanced cervical cancer. MATERIAL AND METHODS Thirty-two patients with locally advanced cervical cancer were retrospectively evaluated. Semi-automated PET-image-based GTV delineation was applied using a previous established algorithm (GTV2SD) and 2 f...
متن کاملSpillover and partial-volume correction for image-derived input functions for small-animal 18F-FDG PET studies.
UNLABELLED We present and validate a method to obtain an input function from dynamic image data and 0 or 1 blood sample for small-animal 18F-FDG PET studies. The method accounts for spillover and partial-volume effects via a physiologic model to yield a model-corrected input function (MCIF). METHODS Image-derived input functions (IDIFs) from heart ventricles and myocardial time-activity curve...
متن کاملCortical Brain Surface Mapping for Studying Partial Volume Effects in Brain Fdg Pet Images
Objectives Due to the small thickness of cortical gray matter in the brain, biological interpretation of image values in the cortical regions on FDG PET images is confounded by tissue atrophy and partial volume effects, especially in patients with Alzheimer Disease (AD). In this study, we developed a method that employs a well established MRI-based cortical brain surface mapping technique to ac...
متن کاملComparison of different automated lesion delineation methods for metabolic tumor volume of 18F-FDG PET/CT in patients with stage I lung adenocarcinoma
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...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Nuclear Medicine Technology
سال: 2013
ISSN: 0091-4916
DOI: 10.2967/jnmt.112.117234