Assessment of Silent T1-weighted head imaging at 7 T

Objectives This study aimed to assess the performance of a “Silent” zero time of echo (ZTE) sequence for T1-weighted brain imaging using a 7 T MRI system. Methods The Silent sequence was evaluated qualitatively by two neuroradiologists, as well as quantitatively in terms of tissue contrast, homogene...

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Bibliographic Details
Published in:European radiology 2016-06, Vol.26 (6), p.1879-1888
Main Authors: Costagli, Mauro, Symms, Mark R., Angeli, Lorenzo, Kelley, Douglas A. C., Biagi, Laura, Farnetani, Andrea, Rua, Catarina, Donatelli, Graziella, Tiberi, Gianluigi, Tosetti, Michela, Cosottini, Mirco
Format: Article
Language:English
Subjects:
Acoustics
Adult
Aged
Aged, 80 and over
Automation
Brain - diagnostic imaging
Diagnostic Radiology
Female
Forecasting
Healthy Volunteers
Humans
Imaging
Internal Medicine
Interventional Radiology
Magnetic Resonance
Magnetic resonance imaging
Magnetic Resonance Imaging - methods
Male
Medical imaging
Medicine
Medicine & Public Health
Middle Aged
Neuroimaging
Neuroradiology
Patient satisfaction
Radiology
Signal to noise ratio
Ultrasound
Young Adult
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Summary:Objectives This study aimed to assess the performance of a “Silent” zero time of echo (ZTE) sequence for T1-weighted brain imaging using a 7 T MRI system. Methods The Silent sequence was evaluated qualitatively by two neuroradiologists, as well as quantitatively in terms of tissue contrast, homogeneity, signal-to-noise ratio (SNR) and acoustic noise. It was compared to conventional T1-weighted imaging (FSPGR). Adequacy for automated segmentation was evaluated in comparison with FSPGR acquired at 7 T and 1.5 T. Specific absorption rate (SAR) was also measured. Results Tissue contrast and homogeneity in Silent were remarkable in deep brain structures and in the occipital and temporal lobes. Mean tissue contrast was significantly ( p  
ISSN:0938-7994
1432-1084
DOI:10.1007/s00330-015-3954-2