搜索结果: 1-15 共查到“生物医学工程 PET”相关记录17条 . 查询时间(0.265 秒)
中日医院举行西门子超高端PET-CT启动仪式（图）
中日友好医院 西门子 人工智能
2023/12/4
2021年12月16日下午,西门子公司全球同步的超高端PET-CT/BiographVision落户中日友好医院的设备启动仪式在核医学科举行。周军院长、高海鹏副院长,医工处、院办负责人、核医学科富丽萍主任和科室医护人员与西门子大中华区副总裁、北方区总经理孔令琦先生等参加了设备启动暨全国PET-CT/BiographVision临床研究与培训中心的揭牌仪式。该设备启用标志着中日友好医院PET/CT临...
近日，中国科学院深圳先进技术研究院医工所劳特伯生物医学成像研究中心杨永峰研究员团队成功研发出高清晰高灵敏小动物PET成像系统，该系统被命名为SIAT aPET。小动物PET是疾病的动物模型研究、新药物研发和新的治疗方法疗效早期评估的重要工具。空间分辨率和效率是PET成像系统两个最重要的性能指标，共同影响PET成像研究的定量精度。本项目采用基于LYSO晶体阵列和SiPM光探测器阵列的高三维位置分辨率...
神经系统副肿瘤综合征（paraneoplastic neurologics yndrome，PNS ）是发生于某些恶性肿瘤患者体内神经系统表现异常的一类少见疾病，其临床表现多样，且神经系统症状的出现多早于恶性肿瘤的诊断。虽然抗神经元抗体对诊断PNS 有提示作用，但是存在较多假阳性和假阴性情况。因此，PNS 的诊断往往是临床工作的难点。PET/CT是一种解剖和功能融合的显像技术，通过一次扫描即可评价...
A Hypoxia Imaging of Rodent Xenografts with 18F-Fluoromisonidazole: Comparison of Dynamic and Static PET Imaging
Tumor Hypoxia Dynamic image Compartmental Modeling 18F-FMISO PET
2013/1/29
Purpose: To generate parametric images of tumor hypoxia in a tumor-bearing rat model using voxel-based compartmental analysis of dynamic fluorine-18 labeled misonidazole (18F-FMISO) microPET? images, ...
Prognostic Values of PET/CT Findings and Tumor/Patient Characteristics with Non-Small Cell Lung Cancer
Non-Small Cell Lung Cancer Survival Prognosis Positron Emission Tomography (PET) FDG-PET
2013/1/31
Background/Aim: Although numerous prognostic factors have been described for non-small cell lung cancer (NSCLC), there is still a requirement for better and non-invasive markers. FDG-PET is a non inva...
Optimal nonlinear line-of-flight estimation in PET
Artificial neural network emission tomography gamma camera scintillation detector
2010/1/7
The authors consider detection of high-energy photons in positron emission tomography using thick scintillation crystals.Parallax effect and multiple Compton interactions in such
crystals significant...
Optimal nonlinear line-of-flight estimation in PET
Artificial neural network emission tomography gamma camera scintillation detector
2010/1/7
The authors consider detection of high-energy photons in positron emission tomography using thick scintillation crystals.Parallax effect and multiple Compton interactions in such
crystals significant...
Reciprocal Benefits of Mass-Univariate and Multivariate Modeling in Brain Mapping: Applications to Event-Related Functional MRI, H215O-, and FDG-PET
MRI H215O FDG-PET
2009/9/8
In brain mapping studies of sensory, cognitive, and motor operations, specific waveforms of dynamic neural activity are predicted based on theoretical models of human information processing. For examp...
Improved Image Fusion in PET/CT Using Hybrid Image Reconstruction and Super-Resolution
Improved Image Fusion PET/CT
2009/9/8
Purpose. To provide PET/CT image fusion with an improved PET resolution and better contrast ratios than standard reconstructions. Method. Using a super-resolution algorithm, several PET acquisitions w...
Registration of Brain MRI/PET Images Based on Adaptive Combination of Intensity and Gradient Field Mutual Information
MRI/PET Images Intensity
2009/9/7
Traditional mutual information (MI) function aligns two multimodality images with intensity information, lacking spatial information, so that it usually presents many local maxima that can lead to ina...
The purpose of this study was to detect the physiological process of FDG's filtration from blood to urine and to establish a mathematical model to describe the process. Dynamic positron emission tomog...
Clustering-Based Linear Least Square Fitting Method for Generation of Parametric Images in Dynamic FDG PET Studies
Parametric Images Dynamic FDG PET Studies
2009/9/7
Parametric images generated from dynamic positron emission tomography (PET) studies are useful for presenting functional/biological information in the 3-dimensional space, but usually suffer from thei...
Purpose. To evaluate the diagnosis value of integrated positron emission tomography and computed tomography (PET/CT) with lung masses, this study emphasized the correlation between tumor size and maxi...
Cerebral Blood Flow Measurement Using fMRI and PET: A Cross-Validation Study
fMRI PET Cerebral Blood Flow Measurement
2009/9/4
An important aspect of functional magnetic resonance imaging (fMRI) is the study of brain hemodynamics, and MR arterial spin labeling (ASL) perfusion imaging has gained wide acceptance as a robust and...
Blind Deblurring Reconstruction Technique with Applications in PET Imaging
PET Imaging Blind Deblurring Reconstruction Technique
2009/9/4
We developed an empirical PET model taking into account system blurring and a blind iterative reconstruction scheme that estimates both the actual image and the point spread function of the system. Re...