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TrueFisp versus HASTE sequences in 3T cine MRI: Evaluation of image quality during phonation in patients with velopharyngeal insufficiency
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TrueFisp versus HASTE sequences in 3T cine MRI: Evaluation of image quality during phonation in patients with velopharyngeal insufficiency
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Journal Article
TrueFisp versus HASTE sequences in 3T cine MRI: Evaluation of image quality during phonation in patients with velopharyngeal insufficiency
2016
Overview
Objective
To evaluate the image quality of two fast dynamic magnetic resonance imaging (MRI) sequences: True fast imaging with steady state precession (TrueFisp) was compared with half-Fourier acquired single turbo-spin-echo (HASTE) sequence for the characterization of velopharyngeal insufficiency (VPI) in repaired cleft palate patients.
Methods
Twenty-two patients (10 female and 12 male; mean age, 17.7 ± 10.6 years; range, 9–31) with suspected VPI underwent 3-T MRI using TrueFisp and HASTE sequences. Imaging was performed in the sagittal plane at rest and during phonation of “ee” and “k” to assess the velum, tongue, posterior pharyngeal wall and a potential VP closure. The results were analysed independently by one radiologist and one orthodontist.
Results
HASTE performed better than TrueFisp for all evaluated items, except the tongue evaluation by the orthodontist during phonation of “k” and “ee”. A statistically significant difference in favour of HASTE was observed in assessing the velum at rest and during phonation of “k” and “ee”, and also in assessing VP closure in both raters (
p
< 0.05). TrueFisp imaging was twice as fast as HASTE (0.36 vs. 0.75 s/image).
Conclusion
Dynamic HASTE images were of superior quality to those obtained with TrueFisp, although TrueFisp imaging was twice as fast.
Key Points
•
Dynamic MRI is an invaluable tool for diagnosing VPI.
•
Dynamic HASTE images were of superior quality to those obtained with TrueFisp.
•
TrueFisp imaging was twice as fast as HASTE imaging.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
