Publication detail

The measurement of B0 and B1 fields inhomogeneity using the Spin Echo and Gradient The measurement of B0 and B1 fields inhomogeneity using the Spin Echo and Gradient Echo techniques

AL KHADDOUR, M.

Original Title

The measurement of B0 and B1 fields inhomogeneity using the Spin Echo and Gradient The measurement of B0 and B1 fields inhomogeneity using the Spin Echo and Gradient Echo techniques

Type

conference paper

Language

English

Original Abstract

This paper describes a method for the basic and RF field inhomogeneity estimation in NMR based on the measurement of T2 and T2*. In this paper a copper and plastic specimens is used in the Exponential approximation of the relaxation process. To distinguish the value of T2 and T2* relaxation times, we used the method both the gradient and spin echo acquisition techniques. A map of the spatial distribution of the B1 field is used to correct the inhomogeneity, and the quality of the B0 inhomogeneity strongly depends on successful approximation of T2. In this article the method of B1 estimation from the relaxation times via the magnetization transfer ratio is described.

Keywords

inhomogeneity, spin echo, gradient echo, MRI measurement, relaxation times

Authors

AL KHADDOUR, M.

RIV year

2013

Released

8. 9. 2013

Location

Brno, Czech Republic

ISBN

978-80-214-4759-2

Book

International Interdisciplinary PhD Workshop 2013, Proceedings

Pages from

292

Pages to

296

Pages count

5

BibTex

@inproceedings{BUT101395,
  author="Mouin {Al Khaddour}",
  title="The measurement of B0 and B1 fields inhomogeneity using the Spin Echo and Gradient The measurement of B0 and B1 fields inhomogeneity using the Spin Echo and Gradient Echo techniques",
  booktitle="International Interdisciplinary PhD Workshop 2013, Proceedings",
  year="2013",
  pages="292--296",
  address="Brno, Czech Republic",
  isbn="978-80-214-4759-2"
}