Echo time dependence of biexponential and triexponential intravoxel incoherent motion parameters in the liver.

Purpose: Intravoxel incoherent motion (IVIM) studies are performed with different acquisition protocols. Comparing them requires knowledge of echo time (TE) dependencies. The TE-dependence of the biexponential perfusion fraction f is well-documented, unlike that of its triexponential counterparts f and f and the biexponential and triexponential pseudodiffusion coefficients D , , and .

On the Field Strength Dependence of Bi- and Triexponential Intravoxel Incoherent Motion (IVIM) Parameters in the Liver.

Background: Studies on intravoxel incoherent motion (IVIM) imaging are carried out with different acquisition protocols.

Purpose: To investigate the dependence of IVIM parameters on the B field strength when using a bi- or triexponential model.

Study Type: Prospective.