发明授权
US06184682B2 Correction of MR images for motion artifacts using navigator echoes and autocorrection
有权
使用导航回波和自动校正校正运动伪影的MR图像
- 专利标题： Correction of MR images for motion artifacts using navigator echoes and autocorrection
- 专利标题（中）： 使用导航回波和自动校正校正运动伪影的MR图像
-
申请号： US09290817申请日： 1999-04-13
-
公开(公告)号： US06184682B2公开(公告)日： 2001-02-06
- 发明人: Richard L. Ehman , Joel P. Felmlee , Armando Manduca , Kiaran P. McGee
- 申请人： Richard L. Ehman , Joel P. Felmlee , Armando Manduca , Kiaran P. McGee
- 主分类号： G01V300
- IPC分类号： G01V300
摘要：
Navigator echo signals are acquired during an MRI scan in which image data is acquired. The navigator echo signals are used to estimate an initial correction of the acquired image data for patient motion during the scan. The initially corrected image data is then autocorrected in an iterative process which measures image quality and makes further corrections to the image data until the measured image quality is within tolerance.