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Can I read Four-dimensional flow-sensitive MRI of the thoracic aorta: 12- versus 32-channel coil arrays on EtoBox?
Four-dimensional flow-sensitive MRI of the thoracic aorta: 12- versus 32-channel coil arrays by Aurélien F. Stalder; Zhiyuan Dong; Qi Yang; Jelena Bock; Jürgen Hennig; Michael Markl; Kuncheng Li is a Medicine article available to read on EtoBox.
What is Four-dimensional flow-sensitive MRI of the thoracic aorta: 12- versus 32-channel coil arrays about?
## Abstract ## Purpose: To evaluate the performance of four‐dimensional (4D) flow‐sensitive MRI in the thoracic aorta using 12‐ and 32‐channel coils and parallel imaging. ## Materials and Methods: 4D flow‐sensitive MRI was performed in the thoracic aorta of 11 healthy volunteers at 3 Tesla (T) using different coils and parallel imaging (GRAPPA) accelerations (R): (i) 12‐channel coil, R = 2; (ii) 12‐channel coil, R = 3; (iii) 32‐channel coil, R = 3. The quantitative analysis included SNR, residual velocity divergence and length and curvature of traces (streamlines and pathlines) as used for 3D flow visualization. In addition, semi‐quantitative image grading was performed to assess quality of phase‐contrast angiography and 3D flow visualization. ## Results: Parallel imaging with an acceleration factor R = 3 allowed to save 19.5 ± 5% measurement time compared with R = 2 (14.2 ± 2.4 min). Acquisition using 12 channels with R = 2 and 32 channels with R = 3 produced data with significantly (__P__ < 0.05) higher quality compared with 12 channels and R = 3. There was no significant difference between 12 channels with R = 2 and 32 channels with R = 3 but for the depiction of supra‐aortic br
Who reads Four-dimensional flow-sensitive MRI of the thoracic aorta: 12- versus 32-channel coil arrays?
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- Author
- Aurélien F. Stalder; Zhiyuan Dong; Qi Yang; Jelena Bock; Jürgen Hennig; Michael Markl; Kuncheng Li
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 1053-1807)
- Published
- 2011
- Language
- EN
- Field
- Medicine (Health Sciences)