Body MRI using IDEAL.
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.


CONCLUSIONS
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.
Costa
Daniel N
DN
Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA, USA. dnobrega@gmail.com
Pedrosa
Ivan
I
McKenzie
Charles
C
Reeder
Scott B
SB
Rofsky
Neil M
NM
D000273:Adipose Tissue; D016477:Artifacts; D001834:Body Water; D006801:Humans; D016018:Least-Squares Analysis; D008279:Magnetic Resonance Imaging / Q000379:methods*; D051598:Whole Body Imaging