volume positron emission tomography
Tumor Quantification in Clinical Positron Emission Tomography
... been made in understanding the limitations, as well as the advantages, of such measurements. The fidelity of PET images to the actual activity distribution within the patient has improved with more accurate corrections ...
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Delineation of Biological Tumor Volume from Positron Emission Tomography Images in Nasopharyngeal Carcinoma
... tumor volume (BTV) from FDG-PET [1], and many studies had illustrated that the incorporation of this biological information in radiotherapy planning procedure would often lead to a change in the local extent of ...
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Positron Emission Tomography Compartmental Models
... In PET the measured regional radioactivity comprises the sum of all tissue compartments and a blood volume component. As Schmidt (1999) comments ’most of the literature on compartmental systems has been concerned ...
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Optimal definition of biological tumor volume using positron emission tomography in an animal model
... The purpose of our study was to design a validation sys- tem for FDG-PET tumor contouring method using corre- sponding cross-sectional pathology based on frozen tumor sections as the gold standard. We also investigated ...
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Vascular reserve in chronic cerebral ischemia measured by the acetazolamide challenge test: comparison with positron emission tomography
... appropriate positron emission tomography sections of the cerebral blood flow image to the cerebral blood volume, cerebral oxygen metabolism, and oxygen extraction fraction im- ...for ...
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CyberKnife radiosurgery for inoperable stage IA non-small cell lung cancer: 18F-fluorodeoxyglucose positron emission tomography/computed tomography serial tumor response assessment
... often causes acute radiation pneumonitis [23]. Repair of the lung injury typically results in asymptomatic focal lung parenchyma fibrosis in the region that cor- responds with the high-dose radiation volume ...
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Age Related Metabolic Profiles in Cognitively Healthy Elders: Results from a Voxel Based [18F]Fluorodeoxyglucose–Positron Emission Tomography Study with Partial Volume Effects Correction
... tested for APOE genotype, which was included in our analysis as a covariate of no interest. One potential factor that could have influenced the results of our study was the inclusion of subjects with conditions that ...
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Quantification of Tumor Vascular Permeability and Blood Volume by Positron Emission Tomography
... automated AIF extraction algorithm searching for the voxels containing arteries with minimal partial volume contamination in the DCE datasets [36]. Before the model fitting, the DCE-MRI data were visually examined ...
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Synthetic Positron Emission Tomography Using Conditional-Generative Adversarial Networks for Healthy Bone Marrow Baseline Image Generation
... Once the network was trained is could then be used to create synthetic PET images based on the CT component alone. An entire series of axial CT slices were fed into the network to produce the corresponding synthetic PET ...
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Does PET/CT give incremental staging information in cancer oesophagus compared to CECT?
... and positron emission tomography (PET /CT) can improve the delineation of primary tumor volume and involved regional lymph nodes as well as distant metastasis in patients with esophageal ...
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Multimodality imaging with CT, MR and FDG-PET for radiotherapy target volume delineation in oropharyngeal squamous cell carcinoma
... F]-Fluoro-D-glucose positron emission tomography- computed tomography (FDG PET-CT) is a widely used functional imaging technique in oncology; tumour cells exhibit differential glucose uptake ...
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Comparison of CT and PET-CT based planning of radiation therapy in locally advanced pancreatic carcinoma
... computerized tomography (CT), which is the current standard imaging modality for planning three-dimensional conformal RT (3D-CRT), has a relatively low sensitivity and specificity in determining the extent of ...
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Accuracy of coregistration of single photon emission CT with MR via a brain surface matching technique
... Validation of some of the above studies has depended on the use of a rigid phantom model to depict the human brain, presuming the brain is a solid, immobile object. Because the brain is a semisolid organ and is suspended ...
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Review of Parallel Computing Techniques for Computed Tomography. Image Reconstruction
... Decentralized parallel computing has many merits. Among these are the reliability, low-cost, and economical efficiency. From super-computers to PC clusters; from a local cluster to a remote cluster server, over the ...
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Image Registration for Dental X-Ray images using Hybrid Technique
... computing, information and control Volume 3 No. 2 April 2007” says that mutual information is a widely used metric in medical image registration that achieves good result but due to absence of spatial information ...
5
PET in uterine malignancies
... target volume of radiation beam is cur- rently based on morphological examinations (such as CECT and MRI), that allow high spatial resolution im- ages with accurate anatomical definition ...Target Volume in ...
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F 18 fluorodeoxyglucose positron emission tomography computed tomography for the diagnosis of Takayasu's arteritis in stroke: a case report
... tron emission tomography-computed tomography showing fluorodeoxyglucose accumulation in the carotid arteries, ascending aorta, and the abdominal aorta cranial to the aneu- rysm (arrows with ...
5
The Utility of Metabolic Imaging by 18F-FDG PET/CT in Lung Cancer: Impact on Diagnosis and Staging
... PET, Positron Emission Tomography, also called PET imaging or a PET scan, is a type of nuclear medicine imaging. Nuclear medicine is a branch of medical imaging that uses small amounts of radioactive ...
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Mri Based Quantification of Global Cerebral Metabolism
... invasive. In addition to providing anatomic information, MRI has demonstrated to be a promising modality for functional and metabolic imaging as well. The discovery of blood oxygenation level dependent (BOLD) effect was ...
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Collaborative and secure transmission of medical data applied to mobile healthcare
... mHealth: mobile healthcare; OppNets: opportunistic networks; CT: computed tomography; PET-CT: positron emission tomography/computed tomography; TAFC-M: multipath transmission algorithm [r] ...
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