搜索结果: 1-2 共查到“口腔医学 SCREEN”相关记录2条 . 查询时间(0.09 秒)
Imaging Characteristics of New Screen/Film Systems for Cephalometric Radiography
cephalometrics radiation dose radiation risk radiographic imaging systems x-ray
2009/2/28
The advent of rare-earth screen/film combinations has brought substantial x-ray dose reductions with minimal loss in imaging quality. The physical charateristics of these recording systems are des...
A comparison of the accuracy of cephalometric landmark location between two screen/film combinations
Cephalometry Cephalometric landmarks Intensifying screens
2009/1/23
The introduction of faster screen/film combinations allows a reduction in radiation dose but at the expense of film quality. This study investigated the accuracy of landmark location on cephalomet...