The Johns Hopkins University;Siemens Healthcare GmbH
发明人:
Eva Rothgang,Arne Hengerer,Lars Lauer,Jan Fritz,Paul Bottomley,Wesley David Gilson,Robert Grimm
申请号：
US15070116
公开号：
US20170269174A1
申请日:
2016.03.15
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A magnetic resonance method and system are provided for magnetic resonance (MR) image-guided insertion of an object into a biological tissue along a predetermined trajectory. The trajectory provides a path between a starting point and a target site within the tissue. Sufficiently high resolution images can be generated in real time to precisely guide the needle placement. A compressed sensing approach is used to generate the images based on minimization of a cost function, where the cost function is based on the predetermined needle path, artifact effects associated with the needle, the negligible changes in the images away from the trajectory, and the limited differences between successive images. The improved combination of spatial and temporal resolution facilitates an insertion procedure that can be continuously adjusted to accurately follow a predetermined trajectory in the tissue, without interruptions to obtain verification images.
