Abstract:
:Steady-state free precession (SSFP) methods have been very successful due to their high signal and short imaging times. These properties make them good candidates for applications that intrinsically suffer from low signal such as low gamma nuclei imaging. A new chemical shift imaging (CSI) technique based on the SSFP signal formation has been implemented and applied to (31)P. The signal properties of the SSFP CSI method have been evaluated and the steady-state signal of (31)P has been measured in human muscles. Due to the T(2) and T(1) signal dependence of SSFP, the steady-state signal mainly consists of phosphocreatine (PCr). The technique allows fast CSI acquisitions with high SNR of the PCr signal. The SNR gain for PCr over a FLASH-based CSI method is approx. 4-5. Fast in vivo CSI of human muscle with subcentimeter resolution and high SNR is demonstrated at 2 T.
journal_name
Magn Reson Medjournal_title
Magnetic resonance in medicineauthors
Speck O,Scheffler K,Hennig Jdoi
10.1002/mrm.10279subject
Has Abstractpub_date
2002-10-01 00:00:00pages
633-9issue
4eissn
0740-3194issn
1522-2594journal_volume
48pub_type
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