✦ LIBER ✦
Effects of the interaction between ferric iron and L-dopa melanin on T1 and T2 relaxation times determined by magnetic resonance imaging
✍ Scribed by Jeffrey M. Tosk; Barbara A. Holshouser; Roland C. Aloia; David B. Hinshaw Jr.; Anton N. Hasso; James P. Macmurray; A. Douglas Will; Louis P. Bozzetti
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 398 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0740-3194
No coin nor oath required. For personal study only.
✦ Synopsis
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 depend upon levels of both paramagnetic iron and neuromelanin.