Brain tumor imaging with FDG PET or FDG PET CT is often difficult to interpret, due to several limiting factors, including high background FDG uptake in the brain parenchyma especially the cerebral/cerebellar cortices and basal ganglia, the heterogeneity of primary and metastatic brain tumors with ...
结论 18F-FDG PET/MR多模态成像对临床TDL诊断及鉴别诊断具有一定价值。 关键词: 肿瘤样脱髓鞘病;氟代脱氧葡萄糖;正电子发射断层成像;磁共振成像;脑肿瘤 ABSTRACT ObjectiveTo investigate the diagnostic value of 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/MR multimodal imaging in tumefactive...
Stand-alone PET was clinically introduced in the 1970s, primarily to diagnose brain tumors.1 After technological developments in detector materials such as increased scintillator density and improvements in scintillation material led to an increase in the resolution of PET imaging, the first modest appl...
Toexplorethevalueof 18 F-FDGPET / CTindistinguishinghighandlowgradepediatricbrain tumor.Methods : 18 F-FDGPET / CTwereperformedin19children ( male10 , female9 , meanage2.13y ) withbraintumorbe- foresurgery.Allthecaseswerepathologicallyconfirmedaftersurgery.PET / CTimageswerereviewedbyvisualobservation...
In pediatric oncology, 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed tomography (CT) is valuable as a tool for noninvasive imagi
Nursing C are of Colorectal Tumor P atients U ndergoing18F2FDG PET Imaging∥L V Jie,S UN Yanmei,S UN L ing, et al 摘要:应用18F2脱氧葡萄糖(18F2FD G)正电子发射型计算机断层(PET)显像对76例结(直)肠肿瘤病人行定性诊断,其灵敏度为92.9%,特异性为90.0%。护理包括检查前控制血糖于正常范围,...
[4]Chen W.Clinical applications of PET in brain tumors.J Nucl Med,2007,48:1468-1481. [5]Heiss WD,Raab P,Lenfermann H.Multimodality assessment of brain tumors and tumor recurrence.J Nucl Med,2011,52:1585-1600. [6]Boss A,Bisdas S,Kolb A,et al.Hybrid PET/MRI of intracranial masses...
presented the feasibility of whole-body PET/MRI systems to combine the unique metabolic imaging capabilities of PET with anatomical merits of MRI in head and neck region7, PET/MRI appears to be a promising modality for patients with head and neck malignancies as well as patients with suspected ...
随着飞行时间(time of flight,TOF)和点扩散函数(point spread dispersion,PSF)等新技术的引入和发展,PET图像质量得到显著改善。TOF和PSF可以改善图像的空间分辨率和信噪比(SNR),提高小病灶的检出率[4]。但通过这些校正得到的PET图像常...
This article focuses on the research evidence of 18F-FDG PET/CT applied in cardiac tumors from four aspects: positioning diagnosis, qualitative diagnosis, efficacy evaluation and imaging technology optimization, achieving the goal of systematical evaluation of the method. KEYWORDS: Fluorodeoxyglucose F18...