| DOI | Resolve DOI: https://doi.org/10.1016/j.mri.2009.05.018 |
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| Author | Search for: Blasiak, Barbara1; Search for: Volotovskyy, Vyacheslav1; Search for: Deng, Charlie1; Search for: Tomanek, Boguslaw1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Biodiagnostics
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| Format | Text, Article |
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| Subject | MRI; RF coil; Solenoidalcoil; Low-field MRI; B1field; SNR |
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| Abstract | Applications of low-field magnetic resonance imaging (MRI) systems (<0.3 T) are limited due to the signal-to-noise ratio (SNR) being lower than that provided by systems based on superconductive magnets (> or = 1.5 T). Therefore, the design of radiofrequency (RF) coils for low-field MRI requires careful consideration as significant gains in SNR can be achieved with the proper design of the RF coil. This article describes an analytical method for the optimization of solenoidal coils. Coil and sample losses are analyzed to provide maximum SNR and optimum B(1) field homogeneity. The calculations are performed for solenoidal coils optimized for the human head at 0.2 T, but the method could also be applied to any solenoidal coil for imaging other anatomical regions at low field. Several coils were constructed to compare experimental and theoretical results. A head magnetic resonance image obtained at 0.2 T with the optimum design is presented. |
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| Publication date | 2009-06-25 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 20001144 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 544636c6-cac8-41b2-b642-160af0a36d58 |
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| Record created | 2012-05-25 |
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| Record modified | 2020-04-16 |
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