Work

Analysis ofJCoupling-Induced Fat Suppression in DIET Imaging

Year: 1999

Type: article

Abstract: The DIET (or dual interval echo train) sequence, a modification of the fast spin echo (FSE) sequence that selectively reduces signal from fat in MR images, has been investigated. The DIET sequence uses an initial echo spacing longer than that of a conventional FSE sequence, thus allowing J coupling-induced dephasing to take effect. The sequence is evaluated theoretically, and its effectiveness on a hydrocarbon (1-pentene) is demonstrated numerically using density matrix calculations. The sequence is also evaluated experimentally using in vitro solutions and in vivo imaging. The efficacy of the sequence is compared for different lipid chemical structures, field strengths, and pulse sequence parameters.

Source: Journal of Magnetic Resonance

DOI: 10.1006/jmre.1998.1628

Authors: L.A. Stables, R.P. Kennan, A.W. Anderson, R.T. Constable, J.C. Gore

Institution: Yale University

Language: English

Topic: Advanced MRI Techniques and Applications

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: hybrid

Estimated APC paid: $3,500

Funders: National Institutes of Health, National Cancer Institute