Abstract
Two modified fast spin-echo (FSE) techniques (a 2-point and a single-scan triple-echo Dixon) were used for T2-weighted imaging of the head and neck in 7 patients along with conventional FSE with fat saturation. Both Dixon techniques provided consistent and more uniform fat suppression (FS) than conventional FSE. The 2-point Dixon technique was noted to be more susceptible to motion artifacts. The triple-echo Dixon technique offered the best scan time efficiency and overall image quality.
Highlights
Magnetic field inhomogeneity induced by the anatomic geometry of the neck and the presence of many tissue-tissue and tissue-air interfaces in the head and face is difficult to compensate with hardware magnetic field shimming
Many 3-point fast spin-echo (FSE) Dixon techniques increase the FSE echo spacing and increase the minimum total scan time; some are reported to have certain reconstruction errors
We present our initial experiences in comparing their performance for T2-weighted head and neck imaging with that of the conventional FSE with chemical shift selective suppression (CHESS) fat suppression
Summary
Successful applications of the 3-point FSE Dixon techniques have been reported.4-8 many 3-point FSE Dixon techniques increase the FSE echo spacing (which has a direct impact on the FSE image quality and the number of sections per TR) and increase the minimum total scan time; some are reported to have certain reconstruction errors.8 In this study, we applied an FSE 2-point Dixon (2PD)9 technique and a single-scan FSE triple echo Dixon technique (fTED)10 for fat-suppressed T2-weighting imaging of the head and neck in 7 patients with cancer. The 2 techniques have better scan time efficiency and processing reliability.9,10 We present our initial experiences in comparing their performance for T2-weighted head and neck imaging with that of the conventional FSE with CHESS fat suppression.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
