79 欲以後前軸位投射(PA Axial projection,或稱 Caldwell method)診斷眶上裂(superior orbital fissures)、
圓孔(foramen rotundum)及眶下枝(inferior orbital rim)時,中心射線(CR)應成何角度?
(A)向腳 10°~15°
(B)向腳 25°~30°
(C)向頭 10°~15°
(D)向頭 25°~30°
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統計: A(63), B(132), C(28), D(13), E(0) #1063055
統計: A(63), B(132), C(28), D(13), E(0) #1063055