Journal
AMERICAN JOURNAL OF ROENTGENOLOGY
Volume 190, Issue 4, Pages 1076-1084Publisher
AMER ROENTGEN RAY SOC
DOI: 10.2214/AJR.07.3182
Keywords
body imaging; chemical shift; fat suppression; iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL); MRI
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OBJECTIVE. The intrinsic differences of water and fat protons in the MR environment allow selective interrogation of their contribution to the MR signal. Fat-suppression techniques and chemical shift imaging are routinely used in clinical body MRI. Iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) is a novel imaging technique for separating fat and water. CONCLUSION. This article describes the basic principles of IDEAL MRI and illustrates the use of IDEAL imaging as an alternative to fat-suppression techniques and chemical shift imaging for body MRI.
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