Intravoxel incoherent motion (IVIM) perfusion imaging has been shown to be applicable in clinical brain examinations, but those images are known to be noisy. To better quantify the necessary conditions to produce homogenous IVIM perfusion images in the brain, we studied the properties of signal noise as function of b-value and of localization in the brain. We compared the image quality of the perfusion maps as function of number of average to the maximal quality IVIM perfusion maps obtained during a 1 hour acquisition time.
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