International Journal of Radiation Research, Volume (8), No (2), Year (2010-9) , Pages (111-116)
Title : ( New approach for attenuation correction in SPECT images, using linear optimization )
Authors: Ali Vahidian Kamyad , mohammad hadi noori skandari , M. Naji Midani , M. Hajizadeh Saffar ,File: 
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Full TextAbstract
Photon attenuation as an inevitable physical phenomenon influences on the diagnostic information of SPECT images and results to errors in accuracy of quantitative measurements. This can be corrected via different physical or mathematical approaches. As the correction equation in mathematical approaches is nonlinear, in this study a new method of linearization called ‘Piece Wise Linearization’ (PWL) is introduced and to substantiate its validity for SPECT image reconstructions, a phantom study is performed.
