In this study, we acquired diffusion-weighted image data of 15 healthy volunteers at four different TE. A ROI-based IVIM analysis showed that the pseudodiffusion coefficients did not change with TE, whereas the perfusion fractions rose significantly for bi- and triexponential IVIM curves at longer TE. A quantitative analysis indicates that the triexponential perfusion fractions are unlikely attributable to venous and arterial blood compartments. Our results indicate moreover that the pseudodiffusion coefficients can be compared without TE-correction among studies performed with different TE.
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