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ERRATUM

ERRATUM n the article “Introduction of Ultra-High-Field MR Imaging in Infants: Preparations and Feasibility” (K.V. Annink, N.E. van der Aa, IJ. Dudink, et al. AJNR Am J Neuroradiol 2020;41:1532–37 10.3174/ajnr.A6702) Table 1 and Fig 3 contained errors. The correct table and figure are the following: Duke Centered Ella Centered Charlie Centered Charlie –50 mm FH Charlie +50 mm FH Global SAR Average SAR for 1 W input power (W/kg) 0.066 0.069 0.091 0.075 0.109 Average SAR per B1 (W/kg/mT2) 0.462 0.465 0.320 0.477 0.484 Average B in central section for 1 W 0.379 0.385 0.542 0.397 0.475 input power (mT) Peak SAR Peak local SAR (10 g averaged) for 1 W 0.435 0.398 0.487 0.345 0.643 input power (W/kg) Peak local SAR (10 g averaged) per B 3.04 2.63 1.72 2.19 2.85 (W/kg/mT2) The power optimization procedure of the MR imaging scanner software calibrates the needed input power to achieve a certain B in the subject. This calibration is based on the average B in a central section of the subject (brain in this case). FIG 3. Local SAR levels in adult head (left) and Charlie in the different coil positions. Shifts of an infant in the x and y http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Neuroradiology American Journal of Neuroradiology

ERRATUM

American Journal of Neuroradiology , Volume 43 (10): 2 – Oct 1, 2022
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Publisher
American Journal of Neuroradiology
Copyright
© 2022 by American Journal of Neuroradiology
ISSN
0195-6108
eISSN
1936-959X
DOI
10.3174/ajnr.a7660
Publisher site
See Article on Publisher Site

Abstract

n the article “Introduction of Ultra-High-Field MR Imaging in Infants: Preparations and Feasibility” (K.V. Annink, N.E. van der Aa, IJ. Dudink, et al. AJNR Am J Neuroradiol 2020;41:1532–37 10.3174/ajnr.A6702) Table 1 and Fig 3 contained errors. The correct table and figure are the following: Duke Centered Ella Centered Charlie Centered Charlie –50 mm FH Charlie +50 mm FH Global SAR Average SAR for 1 W input power (W/kg) 0.066 0.069 0.091 0.075 0.109 Average SAR per B1 (W/kg/mT2) 0.462 0.465 0.320 0.477 0.484 Average B in central section for 1 W 0.379 0.385 0.542 0.397 0.475 input power (mT) Peak SAR Peak local SAR (10 g averaged) for 1 W 0.435 0.398 0.487 0.345 0.643 input power (W/kg) Peak local SAR (10 g averaged) per B 3.04 2.63 1.72 2.19 2.85 (W/kg/mT2) The power optimization procedure of the MR imaging scanner software calibrates the needed input power to achieve a certain B in the subject. This calibration is based on the average B in a central section of the subject (brain in this case). FIG 3. Local SAR levels in adult head (left) and Charlie in the different coil positions. Shifts of an infant in the x and y

Journal

American Journal of Neuroradiology – American Journal of Neuroradiology

Published: Oct 1, 2022

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