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Abstract #4059

Inversion Recovery for Resolving the Olefinic Resonance in Spinal Bone Marrow at 3 T

Clara J. Fallone1 and Atiyah Yahya1,2
1Department of Oncology, University of Alberta, Edmonton, AB, Canada, 2Department of Medical Physics, Cross Cancer Institute, Edmonton, AB, Canada


Magnetic resonance spectroscopy measures of the olefinic resonance (≈ 5.3 ppm) enables estimation of fat unsaturation levels. In spinal bone marrow, the olefinic peak is significantly overlapped by that of water (≈ 4.7 ppm). Previously, STEAM with a TE of 100 ms was demonstrated to resolve the olefinic resonance from that of water in spinal bone marrow at 3 T. In this work, we show that an inversion recovery with short-TE STEAM (20 ms) suppresses the water signal, resolving the olefinic resonance and yielding a signal to noise ratio 3.3x larger than that obtained with long-TE STEAM.

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