نتایج جستجو برای: 13n
تعداد نتایج: 345 فیلتر نتایج به سال:
UNLABELLED We have developed a new imaging method to evaluate the blood perfusion and ammonia metabolism of the pituitary gland, and we preliminarily assessed its role in the diagnosis of hypopituitarism. METHODS Six female healthy volunteers (age range, 20-46 y) and 6 female patients (age range, 23-42 y) were enrolled in this study. Dynamic (13)N-NH(3) PET was performed. Time-activity curves...
Background: Due to the limitation of spatial resolution, cardiac nuclear medicine images have not been applied feature-tracking method automatic extraction myocardial contours. We successfully high-resolution cine 13N-ammonia positron emission tomography (PET) calculate regional strains. Here, we investigate potential PET-derived strain detect ischemia-related wall motion abnormality.Methods: D...
UNLABELLED Systemic lupus erythematosus (SLE) affects multiple organs and systems, severely involving the cardiovascular system. The aim of this study was to evaluate the presence of endothelial dysfunction with (13)N-ammonia PET in asymptomatic SLE patients. METHODS We enrolled 16 women with SLE and 16 healthy women. Myocardial blood flow (MBF) was quantified in a 64-slice PET/CT scanner at ...
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