Skip to main content
. 2015 Oct 7;310(2):F174–F182. doi: 10.1152/ajprenal.00351.2015

Fig. 4.

Fig. 4.

Phantom images and calibration curve. Computed phantom images: T2* map (masked background), phase from complex data, local frequency using HARPERELLA method, and QSM using LSQR algorithm. Plot shows QSM vs. contrast agent concentration. QSM measurements were taken at each echo for the 4 concentrations (1, 2, 4, and 8 mM).