| 摘要 |
<p>A bolus containing optical and MRI contrast agents is administered to a patient for determining quantitative perfusion indices from perfusion weighted magnetic resonance imaging analysis (PWI). The optical contrast agent time-concentration data, which can be obtained non-invasively, is used to define an arterial input function. The MRI contrast agent time concentration can be non-invasively determined using MRI to define a tissue function. An MRI time-signal curve can be determined by deconvolving the arterial and tissue functions. In one embodiment, SVD is used to determine a residue function from which a flow map can be computed.</p> |
