摘要

In this work the feasibility of separating fat and water signals using the balanced steady-state free precession (SSFP) technique is demonstrated. The technique is based on the observation (Scheffler and Hennig, Magnetic Resonance in Medicine 2003;49:395-397) that at the nominal values of TE = TR/2 in SSFP imaging, phase coherence can be achieved at essentially only two orientations (0° and 180°) relative to the RF pulses in the rotating frame, under the assumption of TR ≪ T2, and independently of the SSFP angle. This property allows in-phase and out-of-phase SSFP images to be obtained by proper choices of the center frequency offset, and thus allows the Dixon subtraction method to be utilized for effective fat-water separation. The TR and frequency offset for optimal fat-water separation are derived from theories. Experimental results from healthy subjects, using a 3.0 Tesla system, show that nearly complete fat suppression can be accomplished.
原文英語
頁(從 - 到)243-247
頁數5
期刊Magnetic Resonance in Medicine
51
發行號2
DOIs
出版狀態已發佈 - 2月 2004

ASJC Scopus subject areas

  • 放射學、核子醫學和影像學

指紋

深入研究「Fat and Water Separation in Balanced Steady-State Free Precession Using the Dixon Method」主題。共同形成了獨特的指紋。

引用此