Abstract
Purpose: To visualize flow dynamics of analytes inside porous metallic materials with laser-detected magnetic resonance imaging (MRI). Materials and Methods: We examine the flow of nuclear-polarized water in a porous stainless steel cylinder. Laser-detected MRI utilizes a sensitive optical atomic magnetometer as the detector. Imaging was performed in a remote-detection mode: the encoding was conducted in the Earth's magnetic field, and detection is conducted downstream of the encoding location. Conventional MRI (7T) was also performed for comparison. Results: Laser-detected MRI clearly showed MR images of water flowing through the sample, whereas conventional MRI provided no image. Conclusion: We demonstrated the viability of laser-detected MRI at low-field for studying porous metallic materials, extending MRI techniques to a new group of systems that is normally not accessible to conventional MRI.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1299-1302 |
| Number of pages | 4 |
| Journal | Journal of Magnetic Resonance Imaging |
| Volume | 28 |
| Issue number | 5 |
| DOIs | |
| State | Published - Nov 2008 |
Keywords
- Flow imaging
- Laser detection, porous metal
- Low-field MRI
- Penetration depth
- Remote detection
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging