发明名称 |
Method and apparatus for presenting multiple pre-subject filtering profiles during CT data acquisition |
摘要 |
The present invention is directed to a method and apparatus for CT data acquisition using a rotatable pre-subject filter having more than one filtering profile to control radiation exposure to a subject. The filter is caused to rotate by a motor and bearing assembly and has one profile used to filter radiation when the radiation source is positioned above a subject and another profile that is used to filter radiation when the radiation source is positioned at a side of the subject.
|
申请公布号 |
US6968030(B2) |
申请公布日期 |
2005.11.22 |
申请号 |
US20030249931 |
申请日期 |
2003.05.20 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
HOFFMAN DAVID M. |
分类号 |
A61B6/03;G21K1/02;(IPC1-7):G21K3/00 |
主分类号 |
A61B6/03 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|