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Report No.

Experimental validation of dose assessment system for CT scans "WAZA-ARI"

Ono, Koji*; Yoshitake, Takayasu*; Hasegawa, Takayuki*; Katsunuma, Yasushi*; Takahashi, Fumiaki  ; Sato, Kaoru   ; Endo, Akira   ; Ban, Nobuhiko*; Kai, Michiaki*

A computed tomography (CT) dose calculation system, WAZA-ARI, evaluates organ doses by CT examination using dose coefficients calculated in voxel type Japanese adult male and female phantoms. AEC (Auto Exposure Control) is an essential function in order to optimize the relationship between radiation dose and quality of image of CT scan. Therefore, a method for dose estimation under the AEC operation is being developed for WAZA-ARI. The presentation reports comparison of organ doses between calculation by WAZA-ARI and measurement for various CT scanner equip with AEC for validation of WAZA-ARI.



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