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Abstract #2373

SPatiotemporal ENcoded Spectroscopic Imaging (SPENSI) a New Approach for Multi & Single Scan Spectral Imaging

Amir Seginer 1 , Rita Schmidt 1 , and Lucio Frydman 1

1 Chemical Physics Department, Weizmann Institute of Science, Rehovot, Israel

We introduce a new method for fast spectral-imaging which avoids folding-in of spetra from outside of the spectral-BW, and which can be accelerated to a single-shot acquisition when specific spectral points are of intereset. The new method borrows a spectral encoding block from ultrafast 2D NMR spectroscopy (Frydman et al.), allowing a 1D-spatial / 1D-spectral image to be collected using an EPI-like acquisition with blips along the spectral dimension. Examples are given for breast imaging at 3T, separating tissue, fat, and silicone implant; and at 14T, separating five peaks spanning about 3kHz. Under work is an application to hyperpolarized dynamic imaging.

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