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This chapter describes a miniaturized 3-D magnetic resonance imaging (3-D-MRI) scanner for non-invasive object reconstruction and flow analysis. The scanner leverages a 0.52-T permanent magnet and a compact silicon chip with specialized electronics, occupying a mere 6mm2 for size and footprint miniaturization. The scanner weighs 21 kg and measures 23 × 38 × 17 cm3. It yields an image within a field-of-view of 10 × 8 × 8 mm3 with a 110 × 117 × 250-μm3 image resolution in 0.17 min, providing rapid results for efficient scanning. Also, it can map the fluid’s bidirectional velocity (both magnitude and direction) and image the laminar flow, making it a portable, versatile, and affordable MRI platform for on-site and on-demand screening in various settings.

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Non-invasive Object Reconstruction and Flow Analysis

  • 章节

  • 发表日期：

    2025年

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  • Shuhao Fan,
  • Qi Zhou,
  • Ka-Meng Lei,
  • Rui P. Martins,
  • Pui-In Mak

摘要

This chapter describes a miniaturized 3-D magnetic resonance imaging (3-D-MRI) scanner for non-invasive object reconstruction and flow analysis. The scanner leverages a 0.52-T permanent magnet and a compact silicon chip with specialized electronics, occupying a mere 6mm2 for size and footprint miniaturization. The scanner weighs 21 kg and measures 23 × 38 × 17 cm3. It yields an image within a field-of-view of 10 × 8 × 8 mm3 with a 110 × 117 × 250-μm3 image resolution in 0.17 min, providing rapid results for efficient scanning. Also, it can map the fluid’s bidirectional velocity (both magnitude and direction) and image the laminar flow, making it a portable, versatile, and affordable MRI platform for on-site and on-demand screening in various settings.