عنوان مقاله [English]
Single photon emission computer tomography technique (SPECT) imaging in nuclear medicine is one of the important tools that are used in the imaging of various body tissues. According ventilationperfusion lung scanning, using SPECT imaging system for the diagnosis of lung diseases is spread. First of MATLAB program are used for lung injury in ZUBAL the man-vox phantom. Then SIMIND was taken with lung lesion was simulated. To assess the ability of SPECT imaging system on the three-sphere spherical lesions in the lung tissue was placed with different sizes. Planar and SPECT images were then simulated to evaluate. Assessment on the basis of observer in order to obtain simulation results was used. Among the observers two nuclear specialists also commented on the simulations obtained. The results according to parameters ROC and probabilistic are in the two tables brought. Planar images could be useful to portray diseases pulmonary embolism. But for lung nodules disease because of the involvement locations within the tissue or even a level not affecting the lung tissue and reconstruct images of different sizes could well show spherical lesions.point.