Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.03249 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866910686445043712 |
|---|---|
| author | Liang, Ting-Ou Xu, MinXuan Yu, Wenwei Huang, Shao Ying |
| author_facet | Liang, Ting-Ou Xu, MinXuan Yu, Wenwei Huang, Shao Ying |
| contents | Permanent magnet array (PMA) is a popular option to provide the main magnetic field in a dedicated portable magnetic resonance imaging (MRI) system because it does not need power or a cooling system and has a much stronger field strength compared to a resistive magnet. Aside from the popular Halbach array that has a transversal field direction, the Inward-Outward ring (IO ring) array is a promising candidate that offers a longitudinal field direction with various design and engineering possibilities. In this article, a thorough study of IO ring arrays is conducted by examining the relation between the design parameters and its field patterns, its variants that lead to different applications and their properties. A detailed comparison between an IO ring array and Halbach array was conducted and reported. Moreover, the feasibility of building an IO ring array in a lab is demonstrated. The investigations strongly indicate that IO ring is a promising candidate that can offer high and homogeneous fields or a desired field pattern to portable MRI systems. With a longitudinal field direction, an IO ring array opens up opportunities to adopt MRI advanced technology and techniques in a portable system to improve image quality and shorten scan time. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_03249 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Investigation of Inward-Outward Ring Permanent Magnet Array for Portable Magnetic Resonance Imaging (MRI) Liang, Ting-Ou Xu, MinXuan Yu, Wenwei Huang, Shao Ying Medical Physics Permanent magnet array (PMA) is a popular option to provide the main magnetic field in a dedicated portable magnetic resonance imaging (MRI) system because it does not need power or a cooling system and has a much stronger field strength compared to a resistive magnet. Aside from the popular Halbach array that has a transversal field direction, the Inward-Outward ring (IO ring) array is a promising candidate that offers a longitudinal field direction with various design and engineering possibilities. In this article, a thorough study of IO ring arrays is conducted by examining the relation between the design parameters and its field patterns, its variants that lead to different applications and their properties. A detailed comparison between an IO ring array and Halbach array was conducted and reported. Moreover, the feasibility of building an IO ring array in a lab is demonstrated. The investigations strongly indicate that IO ring is a promising candidate that can offer high and homogeneous fields or a desired field pattern to portable MRI systems. With a longitudinal field direction, an IO ring array opens up opportunities to adopt MRI advanced technology and techniques in a portable system to improve image quality and shorten scan time. |
| title | Investigation of Inward-Outward Ring Permanent Magnet Array for Portable Magnetic Resonance Imaging (MRI) |
| topic | Medical Physics |
| url | https://arxiv.org/abs/2411.03249 |