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- Title
Total liver fat quantification using three-dimensional respiratory self-navigated MRI sequence.
- Authors
Arboleda, Carolina; Aguirre‐Reyes, Daniel; García, María Paz; Tejos, Cristián; Muñoz, Loreto; Miquel, Juan Francisco; Irarrazaval, Pablo; Andia, Marcelo E.; Uribe, Sergio
- Abstract
Purpose MRI can produce quantitative liver fat fraction (FF) maps noninvasively, which can help to improve diagnoses of fatty liver diseases. However, most sequences acquire several two-dimensional (2D) slices during one or more breath-holds, which may be difficult for patients with limited breath-holding capacity. A whole-liver 3D FF map could also be obtained in a single acquisition by applying a reliable breathing-motion correction method. Several correction techniques are available for 3D imaging, but they use external devices, interrupt acquisition, or jeopardize the spatial resolution. To overcome these issues, a proof-of-concept study introducing a self-navigated 3D three-point Dixon sequence is presented here. Methods A respiratory self-gating strategy acquiring a center k-space profile was integrated into a three-point Dixon sequence. We obtained 3D FF maps from a water-fat emulsions phantom and fifteen volunteers. This sequence was compared with multi-2D breath-hold and 3D free-breathing approaches. Results Our 3D three-point Dixon self-navigated sequence could correct for respiratory-motion artifacts and provided more precise FF measurements than breath-hold multi-2D and 3D free-breathing techniques. Conclusion Our 3D respiratory self-gating fat quantification sequence could correct for respiratory motion artifacts and yield more-precise FF measurements. Magn Reson Med 76:1400-1409, 2016. © 2015 International Society for Magnetic Resonance in Medicine
- Publication
Magnetic Resonance in Medicine, 2016, Vol 76, Issue 5, p1400
- ISSN
0740-3194
- Publication type
Article
- DOI
10.1002/mrm.26028