Superconducting and low temperature RF Coils for Ultra-Low-Field MRI: A Study on SNR Performance
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866917775680733184 |
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| author | Bhosale, Aditya A Payne, Komlan Zhang, Xiaoliang |
| author_facet | Bhosale, Aditya A Payne, Komlan Zhang, Xiaoliang |
| contents | This study incorporates electromagnetic simulations to assess the performance of multi-turn solenoid coils for ultra-low field MR imaging with various conductor materials (superconducting material, low-temperature copper, and room-temperature copper) across different human samples (elbow, knee, and brain). At 70 mT, superconducting materials performed significantly better than both room-temperature and low-temperature copper. The high Q-factor of the superconducting material indicates lower energy loss, which is useful for MR imaging. Furthermore, B1+ field efficiency increased significantly with superconducting materials, indicating superior performance. SNR evaluations revealed that materials with higher conductivity significantly improve SNR, which is critical for producing high-quality MR images. These results show that superconducting and low-temperature copper materials can significantly improve MR imaging quality at ultra-low fields, which has important implications for coil design and optimization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_09608 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Superconducting and low temperature RF Coils for Ultra-Low-Field MRI: A Study on SNR Performance Bhosale, Aditya A Payne, Komlan Zhang, Xiaoliang Medical Physics This study incorporates electromagnetic simulations to assess the performance of multi-turn solenoid coils for ultra-low field MR imaging with various conductor materials (superconducting material, low-temperature copper, and room-temperature copper) across different human samples (elbow, knee, and brain). At 70 mT, superconducting materials performed significantly better than both room-temperature and low-temperature copper. The high Q-factor of the superconducting material indicates lower energy loss, which is useful for MR imaging. Furthermore, B1+ field efficiency increased significantly with superconducting materials, indicating superior performance. SNR evaluations revealed that materials with higher conductivity significantly improve SNR, which is critical for producing high-quality MR images. These results show that superconducting and low-temperature copper materials can significantly improve MR imaging quality at ultra-low fields, which has important implications for coil design and optimization. |
| title | Superconducting and low temperature RF Coils for Ultra-Low-Field MRI: A Study on SNR Performance |
| topic | Medical Physics |
| url | https://arxiv.org/abs/2409.09608 |