Abstract #0298

Superfast CEST Spectral Imaging (SCSI)

Iris Yuwen Zhou¹, Jinsuh Kim², Takahiro Igarashi¹, Lingyi Wen¹, and Phillip Zhe Sun¹

¹Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States, ²Department of Radiology, University of Illusions at Chicago, Chicago, IL, United States

To resolve metabolites at different chemical shift offsets, complete Z-spectrum is conventionally obtained by varying saturation offset from scan to scan, which is time consuming and not suitable for studying dynamic changes. To overcome this, we innovatively combined superfast Z spectroscopy with chemical shift imaging (CSI) and developed Superfast Chemical exchange saturation transfer (CEST) Spectral Imaging (SCSI). It provides fast Z-spectral CEST information with spatial resolution. While conventional CSI measures dilute metabolites, the proposed SCSI exploits CEST mechanism to investigate the interaction between metabolites/contrast agents and tissue water, providing sensitivity enhanced measurements of metabolites and pH information.

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