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Xv2 save editor 0.741/20/2023 Methods of Hoffman brain phantom was filled with a solution of Tc- 99 m (5 mCi) and water (1300 cc). In this research we made a comparison between normal and abnormal states of Hoffman brain phantom. To more meaningful ones based on performance of some tasks related to clinical application it is better to use from organs' phantoms, such as: brain, cardiac, etc. The above tests are simple physics measures. Each of the above standards has the following important orders: Physical inspection, Acceptance and Reference Testing, Periodic Q C tests (Daily, Weekly, Monthly, Quarterly, Annually). There are the following standards for quality control in nuclear medicine: American Association of Physicists in Medicine, National Electrical Manufacturers Association, International Electromechanical Commission, International Atomic Energy Agency. The purpose of this investigation is using Hoffman brain phantom for quality assessment of brian images in SPECT system. International Nuclear Information System (INIS) Quality assessment of brain images by Hoffman phantom
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