Determining the temperature-dependence of tissue relaxation times (T1 and T2) for prospective optimization of post-mortem magnetic resonance (PMMR) image contrast

Effects of the interaction between ferri

Effects of the interaction between ferric iron and L-dopa melanin on T1 and T2 relaxation times determined by magnetic resonance imaging

✍ Jeffrey M. Tosk; Barbara A. Holshouser; Roland C. Aloia; David B. Hinshaw Jr.; A 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 398 KB

## Abstract T1 and T2 relaxation times of agar phantoms containing L‐dopa melanin and Fe^3+^ were measured under MRI conditions. Fe^3+^ shortened T1 and T2 relaxation times. Melanin influenced relaxation times only in the presence of Fe^3+^; thus, contrast in MR images of the basal ganglia may depe