73.使用點射源校正均勻度(uniformity)時,依據NEMA的規定,其點射源距離造影儀(gamma camera)應為:
(A)5 CFOV(central field of view)
(B)3 CFOV(central field of view)
(C)5 UFOV(useful field of view)
(D)3 UFOV(useful field of view)
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統計: A(375), B(249), C(1911), D(192), E(0) #2182887
統計: A(375), B(249), C(1911), D(192), E(0) #2182887