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- W2183663864 abstract "Many physical factors degrade SPECT images both qualitatively and quantitatively. SPECT has highlighted the need to improve gamma camera performance. The study will examine different acquisition parameters for the gamma camera such as matrix size and motion type. Also it will cover the processing parameters like filtered back projection and iterative reconstruction techniques. Image contrast refers to the differences in density (or intensity) in parts of the image corresponding to different levels of radioactive uptake in the patient. In nuclear medicine, it is the lesion-to-background uptake or concentration ratio. Various physical factors limit the quality of the SPECT images. Among these are matrix size and motion type. A general definition of contrast is that it is the ratio of signal change of an object of interest, such as a lesion, relative to the signal level in surrounding parts of the image. Aim of the study: The aim of the present work is to evaluate different physical factors (matrix size & motion type) affecting the image contrast in Single Photon Emission Computerized Tomography (SPECT) in order to optimize the patient’s examination on the gamma camera in Nuclear medicine facility." @default.
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- W2183663864 date "2012-01-01" @default.
- W2183663864 modified "2023-09-27" @default.
- W2183663864 title "EVALUATION OF VARYING ACQUISITION PARAMETERS ON THE IMAGE CONTRAST IN SPECT STUDIES" @default.
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