Effect of formalin fixation on measured concentrations of deposited gadolinium in human tissue: an autopsy study.
Makoto HasegawaDesiree A MarshallLuis Francisco Gonzalez-CuyarDaniel S HippeShar SamyKenneth R MaravillaPublished in: Acta radiologica (Stockholm, Sweden : 1987) (2021)
Formalin fixation appears to decrease Gd concentration in bone and skin by approximately 30%-40% on average. The largest decrease occurs within the first 30 days of fixation followed by a considerably smaller decrease at 60 days.