首页 | 本学科首页   官方微博 | 高级检索  
     


Continuously moving table SENSE imaging.
Authors:Jochen Keupp,Bernd Aldefeld,Peter B  rnert
Affiliation:Philips Research Laboratories, Technical Systems, R?ntegenstrasse 24-26, D-22315 Hamburg, Germany. jochen.keupp@philips.com
Abstract:
A combination of continuously moving table imaging and parallel imaging based on sensitivity encoding (SENSE) is presented. One specific geometry is considered, where the receiver array is fixed to the MR magnet and does not move with the table, which allows for head-to-toe imaging with a small total number of coils. Sensitivity maps are defined for the enlarged virtual field of view and are composed according to the k-space sampling scheme such that established parallel reconstruction techniques are applicable to good approximation. In vivo experiments show the feasibility of this approach, and simulations determine the application range. Three-dimensional head-to-toe imaging of volunteers is performed in 77 s with a SENSE reduction factor of 2 in a virtual field of view of 1800 x 460 x 100 mm(3).
Keywords:continuously moving table MRI  parallel imaging  SENSE  3D
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号