| Autor: |
Kinya, Ishizaka, Kohsuke, Kudo, Kuniaki, Harada, Toru, Shirai, Taro, Fujiwara, Suzuko, Aoike, Sayaka, Takamori, Hiroki, Shirato |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Journal of magnetic resonance imaging : JMRI. 47(1) |
| ISSN: |
1522-2586 |
| Popis: |
To evaluate the homogeneity of the radiofrequency magnetic field (BTwenty volunteers were scanned with a four-channel radiofrequency (RF) transmit coil at 3T, with arms on the bed (conventional), arms elevated by 100 mm (arm lift), or with the arms-up position (elevated arm). Axial BMean FA values (degrees) for the arm lift and elevated arm positions were significantly larger than for the conventional position (P0.001 for both) at the twelfth thoracic vertebra (Th12). FA SD values for the arm lift and elevated arm position were significantly smaller than for the conventional position (P0.001 for both) at Th12. CNR for the arm lift and elevated arm position were significantly higher than for the conventional position (P = 0.007 and 0.002, respectively). The mean and SD of the FA and the CNR did not differ significantly for the arm lift and elevated arm positions (P = 0.591, 0.958, and 0.927, respectively).Inhomogeneities of B3 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2018;47:123-130. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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