Abstract
Motivation: EPI-based CEST (CEST-EPI) is fast but suffers from image distortion caused by field susceptibility.
Goal(s): We aimed to evaluate the effectiveness of using the field map generated by the Z-spectra to achieve the distortion self-correction (DISC) for single-shot CEST-EPI without additional acquisition of a field map.
Approach: The effectiveness of DISC strategy was demonstrated in CEST-EPI experiments of a creatine phantom and in vivo mice. CEST-RARE was used as a reference.
Results: Without acquiring an additional field map, DISC retrospectively and effectively corrected geometric distortion in CEST-EPI, leading to improved SSIM and spatial CEST contrasts.
Impact: We evaluated the effectiveness of using the field map generated by the Z-spectra to achieve the distortion self-correction for single-shot CEST-EPI. Results showed that DISC retrospectively and effectively corrected geometric distortion in CEST-EPI without acquiring an additional field map.
| Original language | English |
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| Publication status | Presented - May 2024 |
| Event | 2024 ISMRM & ISMRT Annual Meeting & Exhibition - Suntec Singapore Convention & Exhibition Centre, Singapore Duration: 4 May 2024 → 9 May 2024 https://www.ismrm.org/24m/ |
Conference
| Conference | 2024 ISMRM & ISMRT Annual Meeting & Exhibition |
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| Place | Singapore |
| Period | 4/05/24 → 9/05/24 |
| Internet address |
Bibliographical note
Information for this record is supplemented by the author(s) concerned.Research Keywords
- Data Processing
- CEST & MT
- EPI