INTERVENTIONAL MAGNETIC RESONANCE IMAGING BASED ON GLOBAL COHERENT FREE PRECESSION
摘要
<p>Methods and systems for obtaining intravascular magnetic resonance images of blood flow are disclosed. In preferred forms, a train of radio frequency (RF) pulses is produced by an intravascularly introduced RF transmitter positioned in proximate location to the blood flow so as to create a continuous stream of coherently excited protons of the blood flow. The coherently excited protons of the blood flow are sampled as the protons freely precess while flowing through a region of three dimensional space unaffected by the ongoing intravascular RF excitation. An image of the sampled coherently excited protons may then be constructed.</p>
申请公布号
WO2006083978(A2)
申请公布日期
2006.08.10
申请号
WO2006US03585
申请日期
2006.02.02
申请人
DUKE UNIVERSITY;JUDD, ROBERT, M.;REHWALD, WOLFGANG, G.;KIM, RAYMOND, J.
发明人
JUDD, ROBERT, M.;REHWALD, WOLFGANG, G.;KIM, RAYMOND, J.