您的位置: 首页 > 农业专利 > 详情页

COMPUTED TOMOGRAPHY SYSTEM AND METHOD FOR TRACKING A BOLUS
专利权人:
发明人:
SCHMITT HOLGER,GRASS MICHAEL
申请号:
IN6342/CHENP/2013
公开号:
IN2013CN06342A
申请日:
2013.08.06
申请国别(地区):
IN
年份:
2016
代理人:
摘要:
The present invention relates to a computed tomography system (10) and a corresponding method which enable tracking of a contrast material bolus and which involve a reduced radiation dose. The proposed computed tomography system (10) comprises an acquisition unit including an X ray source (18) and an X ray detector (30) for acquiring projection data sets (42 44 46) a reconstruction unit (41) for reconstructing a planning image (48) from a first projection data set (42) an identification unit (52) for identifying a region of interest (40) in the planning image (48) a selection unit (54) for selecting a projection angle (60) through the region of interest (40) a calculator (62) for calculating a target projection value (64) for a projection of said region of interest (40) with the selected projection angle (60) a control unit (32) for controlling said acquisition unit to acquire a second reduced projection data set (44) including projection data from projections of said region of interest (40) with the selected projection angle (60) and a comparator (68) for comparing projection values of the second projection data set (44) with the target projection value (64) wherein the control unit (32) is adapted to control the acquisition unit to initiate the acquisition of a third projection data set (46) based on the comparison result (70) and to reconstruct a diagnostic image (50) from the third projection data set (46).
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充