Conversion of the MR signal intensity to Gd-DTPA concentration in contrast-enhanced MR renography
Prince K, Huang A, Oesingmann N, Bokacheva L, Rusinek H, Lee V, Kaur M, Chen Q
NYU School of Medicine
A method for calculating Gd-DTPA concentration from the MR signal intensity (SI) has been implemented for dynamic contrast-enhanced 3D renography. The method is based upon the phantom and in vivo measurements and differs from frequently used method of relative signal change to calculate Gd-DTPA concentration. The proposed method enables one to account for nonlinearity between SI and higher concentrations of gadolinium.