T1 and T2 measurements on a 1.5-T commercial MR imager.
- 1 April 1989
- journal article
- research article
- Published by Radiological Society of North America (RSNA) in Radiology
- Vol. 171 (1) , 273-276
- https://doi.org/10.1148/radiology.171.1.2928538
Abstract
In order for relaxation times to be used in clinical diagnosis, the precision of the measurement must be determined. The authors measured T1, T2, and proton density in a phantom and in human volunteers to determine the reproducibility of the method. The coefficient of variance of T1 measurements in the phantom during a 15-month period with two software upgrades was 5%. Variance of T2 measurements with any given software was 4% or less, and overall in the 15-month period, with two software changes, the T2 reproducibility was between 6% and 9%. The reproducibility is sufficiently high that precise clinical measurements of T1, T2, and proton density are feasible.This publication has 7 references indexed in Scilit:
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