Abstract：
:There is increasing interest in imaging short T2 species which show little or no signal with conventional magnetic resonance (MR) pulse sequences. In this paper, we describe the use of three-dimensional ultrashort echo time (3D UTE) sequences with TEs down to 8 μs for imaging of these species. Image contrast was generated with acquisitions using dual echo 3D UTE with echo subtraction, dual echo 3D UTE with rescaled subtraction, long T2 saturation 3D UTE, long T2 saturation dual echo 3D UTE with echo subtraction, single adiabatic inversion recovery 3D UTE, single adiabatic inversion recovery dual echo 3D UTE with echo subtraction and dual adiabatic inversion recovery 3D UTE. The feasibility of using these approaches was demonstrated in in vitro and in vivo imaging of calcified cartilage, aponeuroses, menisci, tendons, ligaments and cortical bone with a 3-T clinical MR scanner. Signal-to-noise ratios and contrast-to-noise ratios were used to compare the techniques.
journal_name
Magn Reson Imagingjournal_title
Magnetic resonance imagingauthors
Du J,Bydder M,Takahashi AM,Carl M,Chung CB,Bydder GMdoi
10.1016/j.mri.2010.11.003subject
Has Abstractpub_date
2011-05-01 00:00:00pages
470-82issue
4eissn
0730-725Xissn
1873-5894pii
S0730-725X(10)00393-0journal_volume
29pub_type
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