Fig. 8
From: In vivo gadolinium nanoparticle quantification with SPECT/CT
Calibration and result for gadolinium mass measurement from SPECT images for in vivo studies (kidneys) Left: The αInGd(t0) coefficient at injection preparation time for in vivo studies based on left kidneys. Right: Gadolinium mass measurement from SPECT images for in vivo studies vs. expected mass of gadolinium measured with ICP-MS in right kidneys. The errors on slope and intercept are only fit errors without taking into account the systematic uncertainties from SPECT image calibration, Aref and GdICP−MS measurements