background: measurement of absolute or differential renal function using radiotracers plays an important role in the clinical management of various renal diseases. gamma camera quantitative methods in approximation of renal clearance may potentially be as accurate as plasma clearance methods. however some critical factors such as kidney depth and background counts are still troublesome in the u...

Background: Measurement of absolute or differential renal function using radiotracers plays an important role in the clinical management of various renal diseases. Gamma camera quantitative methods in approximation of renal clearance may potentially be as accurate as plasma clearance methods. However some critical factors such as kidney depth and background counts are still troublesome in...

several common approaches are used for disinfection of water in this section, but using the approaches (e.g. chlorination) are accompanied with hazardous by-products and also lead to notable changes in odor and flavor of water. gamma irradiation as an emerging method has been encouraged currently by fao/who for water, wastewater and food treatment. coliform bacteria belong to common contaminant...

OBJECTIVE We sought to determine the best parameters for rapid performance of daily quality control testing of intrinsic uniformity and relative sensitivity for the single-head gamma-camera system in our nuclear medicine department. METHODS The effects of the following parameters on intrinsic uniformity were studied: gamma source activity, number of acquired counts for the flood image, source...

A scintillation camera and computer assembly is described whereby clinical and research scintigraphic data can be processed by a computer through a videotape transfer system. This assembly can provide a full computer capability to hospital clinics which are not equipped with a computer but still require convenient and rapid data analysis. Tomographic and anatomical marker data can also be acces...

Smart camera networks provide the opportunity to detect, classify, and trace visual events by means of a wireless network of embedded computing devices equipped with camera sensors. Previous research in this area has largely focused on custom hardware solutions. In contrast, we propose to use mobile phones as a portable and low-cost platform to implement smart camera networks. Due to mass produ...

OBJECTIVE This study compared the 123I thyroid uptake measurements obtained from a gamma camera fitted with a low-energy all-purpose (LEAP) collimator to those obtained from a thyroid uptake probe and gamma camera fitted with a pinhole (PH) collimator. METHODS Thirty-one patients (27 female and 4 male patients) were studied for comparison between a probe and a gamma camera fitted with LEAP co...