2. X-rays do not stay in the body after the radiation exposure.
查看答案
1. You are exposed to X-ray whenever you enter a room with an X-ray machine.
A. True
B. False
In OPG, in order to image a curved plane along the arch of the teeth:
A. The X-ray source and film are mounted on an arm rotating at the center of the arch.
B. The main arm rotates at a constant speed, while the speed of the film drum is varied
C. Both first and second answers are correct.
X-ray OPG is mainly used for:
A. Imaging fractures.
B. Imaging teeth and features around the teeth.
C. Imaging on a curved plane.
为什么患者报告在DXA成像中被表达为Z分数？
A. 因为制造商将他们存储在扫描仪中
B. Z分数使扫描仪之间的区别规格化。
C. 因为扫描数是量化的
微信支付 
支付宝支付