Siemens Healthcare Ltd.;Siemens Healthcare GmbH;King's College London
发明人:
Ronald Mooiweer,Rainer Schneider,Radhouene Neji,Reza Razavi,Tobias Schaeffter,Sebastien Roujol
申请号：
GB201904699
公开号：
GB2582795A
申请日:
2019.04.03
申请国别(地区):
GB
年份:
2020
代理人:
摘要：
A method using a magnetic resonance apparatus to control an imaging sequence, by generating a tracking sequence to track the position of an active MR device, obtaining signals from the device because of the tracking sequence, processing to determine the position, determining if the position satisfies a trigger condition and generating the imaging sequence if the trigger is satisfied. If not, the images aren’t generated, and the method may be repeated. The imaging sequence may be started a predetermined time after the trigger is met, the time may be selected to be generated during a specific point in the subjects’ motion, such as cardiac or respiratory cycles, the point may correspond to a resting state. The image sequence may be an MR thermometry sequence. The active device may be a receive coil and may be part of an invasive device such as a catheter. The imaging sequence may be for use in a cardiac region or the abdomen. The tracking sequence may further comprise a spatially non-selective excitation pulse followed by a magnetic field gradient pulse along a first spatial direction.
