Reproducibility of spin lattice relaxation time (T1) measurement using an 0.08 tesla MD 800 magnetic resonance imager
- 1 March 1987
- journal article
- research article
- Published by Oxford University Press (OUP) in The British Journal of Radiology
- Vol. 60 (711) , 241-244
- https://doi.org/10.1259/0007-1285-60-711-241
Abstract
The reproducibility of T1 measurements using an MD 800 magnetic resonance imager operating at 0.08 T (3.4 MHz) has been assessed by repeated imaging over a 15-week period of a phantom containing six copper-sulphate solutions of different dilutions. The standard pulse sequence for this scanner with an inversion time of 200 ms and a repetition time of 1 s was used. Reproducibility was excellent for the lower T1 range (< 350 ms), but greater variability was observed at higher T1 values (> 490 ms). A linear relationship between T1 and temperature has been demonstrated and a method for standardizing T1 values obtained at different temperatures is described.This publication has 1 reference indexed in Scilit:
- Calibration of the Aberdeen NMR imager for proton spin-lattice relaxation time measurements in vivoPhysics in Medicine & Biology, 1982