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pro vyhledávání: '"Hamidreza Babaeifar"'
Autor:
Soroush Sistani, Hamidreza Babaeifar, Daryoush Khoramian, Mahmud Naraqi Arani, Mostafa Sarvizadeh, Faraz Kalantari, Ali Ebrahimi
Publikováno v:
Radiation Protection Dosimetry. 199:347-355
To evaluate the beam-matching of two Siemens Primus medical linear accelerators (Linacs), the output factor (Sc,p), wedge factor, quality index (TPR20/10), percentage depth dose (PDD) and beam profiles were compared for 6 and 15 MV photon beams. The
Publikováno v:
2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
Accurate attenuation correction can significantly improve the diagnostic accuracy of SPECT images. However, misregistration between the emission and attenuation maps can cause alignment induced artifacts in the attenuation corrected images. In this s