✦ LIBER ✦

T1- and T2-weighted fast spin-echo imaging of the brachial plexus and cervical spine with IDEAL water–fat separation

✍ Scribed by Scott B. Reeder; Huanzhou Yu; Jane W. Johnson; Ann Shimakawa; Jean H. Brittain; Norbert J. Pelc; Christopher F. Beaulieu; Garry E. Gold

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 598 KB
Volume: 24
Category: Article
ISSN: 1053-1807
DOI: 10.1002/jmri.20721

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Purpose

To compare the __i__terative __d__ecomposition of water and fat with __e__cho __a__symmetry and __l__east‐squares estimation (IDEAL) method with fat‐saturated T1‐weighted (T~1~W) and T~2~W fast spin‐echo (FSE) and short‐TI inversion recovery (STIR) imaging of the brachial plexus and cervical spine.

Materials and Methods

Images acquired at 1.5T in five volunteers using fat‐saturated T~1~W and T~2~W FSE imaging and STIR were compared with T~1~W and T~2~W IDEAL‐FSE images. Examples of T~1~W and T~2~W IDEAL‐FSE images acquired in patients are also shown.

Results

T~1~W and T~2~W IDEAL‐FSE demonstrated superior fat suppression (P < 0.05) and image quality (P < 0.05), compared to T~1~W and T~2~W fat‐saturated FSE, respectively. SNR performance of T~1~W‐IDEAL‐FSE was similar to T~1~W FSE in the spinal cord (P = 0.250) and paraspinous muscles (P = 0.78), while T~2~W IDEAL‐FSE had superior SNR in muscle (P = 0.02) and CSF (P = 0.02), and marginally higher cord SNR (P = 0.09). Compared to STIR, T~2~W IDEAL‐FSE demonstrated superior image quality (P < 0.05), comparable fat suppression (excellent, P = 1.0), and higher SNR performance (P < 0.001).

Conclusion

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