Table 2. Comparison of Relaxivity Data of Several Selected Nanoparticulate Gd3+-Based Contrast Agents.
| nanoparticulate Gd-based CA | r1 (mM–1 s–1) | r2 (mM–1 s–1) | r2/r1 ratio | field (T) | ref |
|---|---|---|---|---|---|
| KGd(H2O)2[Fe(CN)6]·H2O | 16.8 | 23.9 | 1.4 | 7.0 | this work |
| KGd(H2O)2[Fe(CN)6]·H2O | 35.2 | 38.4 | 1.1 | 1.4 | this work |
| Gd(DTPA) | 3.4 | 3.7 | 1.1 | 1.4 | this work |
| Gd(BDC)1.5(H2O)2a | 35.8 | 55.6 | 1.6 | 3.0 | (15)(a) |
| Gd(H2O)2[Fe(CN)6]·2H2O | 13.3 | 20.1 | 1.5 | 4.7 | (16)(d) |
| GdPO4 | 13.9 | 15.0 | 1.1 | 0.47 | (14) |
| Gd2O3 | 4.8 | 16.9 | 3.5 | 7.0 | (23) |
a
BDC = terephthalic acid.