نتایج جستجو برای: imaging system
تعداد نتایج: 2612609 فیلتر نتایج به سال:
Background & Aims: Spatial resolution is one of the important features of evaluating the function of nuclear medicine imaging systems. The aim of this study was evaluating the capability of the spatial resolution in images of nuclear medicine planar by calculating the modulation transfer function (MTF). Materials & Methods: Nuclear medicine imaging of capillary tube with activity 1 mCi was per...
precise localization of the third molars in relation to the inferior alveolar nerve canal is critical from a clinical point of view and strongly affects the surgical treatment outcome. recently, by using three-dimensional modeling software, the relationship of third molar root apices and inferior alveolar nerve canal can be better understood. in this study, the spatial relationship of two surgi...
تصویربرداری (magnetic resonance imaging)mri بخاطر دقت بالای تصویر و قدرت تشخیص عالی بافتهای نرم از یکدیگر، در به تصویر کشاندن بافتهای غیرطبیعی مغز انسان موفق بوده است . اختلالات عصبی مختلفی وجود دارند که منجر به آسسیب دیدگی سیستم عصبی مرکزی (central nerve system) می شوند و از جمله آن می توان به بیماری ms(mulltiple sclerosis) اشاره کرد. تصویربرداری mr نشان داده است که نسبت به این بیماری خیلی حسا...
The advent of dual-modality PET/CT imaging has revolutionized the practice of clinical oncology, cardiology and neurology by improving lesions localization and the possibility of accurate quantitative analysis. In addition, the use of CT images for CT-based attenuation correction (CTAC) allows to decrease the overall scanning time and to create a noise-free attenuat...
the poor orientation of the restaurants toward the information technology has yet many unsolved issues in regards to the customers. one of these problems which lead the appeal list of later, and have a negative impact on the prestige of the restaurant is the case when the later does not respond on time to the customers’ needs, and which causes their dissatisfaction. this issue is really sensiti...
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