This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1016/j.mri.2014.07.006 in citations.
Intracranial microvascular imaging at 7T MRI with transceiver RF coils
Intracranial microvascular imaging at 7T MRI with transceiver RF coils
PurposeTo investigate intracranial microvascular images with transceiver radio-frequency (RF) coils at ultra-high field 7 T magnetic resonance imaging (MRI).Materials and methodsWe designed several types of RF coils for the study of 7 T magnetic resonance angiography and analyzed quantitatively each...
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Personal Name(s): | Kang, Chang-Ki |
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Woo, Myung-Kyun / Hong, Suk Min / Kim, Young-Bo / Cho, Zang-Hee (Corresponding Author) | |
Contributing Institute: |
Physik der Medizinischen Bildgebung; INM-4 JARA-BRAIN; JARA-BRAIN |
Published in: | Magnetic resonance imaging, 32 (2014) 9, S. 1133 - 1138 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2014
|
DOI: |
10.1016/j.mri.2014.07.006 |
Document Type: |
Journal Article |
Research Program: |
Imaging the Living Brain |
Publikationsportal JuSER |
PurposeTo investigate intracranial microvascular images with transceiver radio-frequency (RF) coils at ultra-high field 7 T magnetic resonance imaging (MRI).Materials and methodsWe designed several types of RF coils for the study of 7 T magnetic resonance angiography and analyzed quantitatively each coil's performance in terms of the signal-to-noise ratio (SNR) profiles to evaluate the usefulness of RF coils for microvascular imaging applications. We also obtained the microvascular images with different resolutions and parallel imaging technique.ResultsThe overlapped 6-channel (ch) transceiver coil exhibited the highest performance for angiographic imaging. Although other multi-channel coils, such as 4- or 8-ch, were also suitable for fast imaging, these coils performed poorly in homogeneity or SNR for angiographic imaging. Furthermore, the 8-ch coil was poor in SNR at the center of the brain, while it had the highest SNR at the periphery.ConclusionThe present study has demonstrated that the overlapped 6-ch coil with large-size loop coils provided the best performance for microvascular imaging or angiography with the ultra-high-field 7 T MRI, mainly because of its long penetration depth together with high SNR. |