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Abstract #0948

3D-FSE Inner Volume Imaging using 3D selective excitation

Shaihan J Malik 1 and Joseph V Hajnal 1,2

1 Division of Imaging Sciences and Biomedical Engineering, Kings College London, London, London, United Kingdom, 2 Centre for the Developing Brain, Kings College London, London, London, United Kingdom

The 3D Fast Spin Echo sequence offers a very good candidate for inner volume imaging (IVI) since magnetization that is not transverse after the excitation pulse does not contribute any signal thereafter. In this work 3D localized excitations have been realised in-vivo using parallel transmission to achieve reasonable pulse durations (~12ms) with on-line subject specific optimization. The pulses were coupled with an otherwise standard T2 weighted 3D-FSE protocol in the human brain, employing non-selective variable flip angle refocusing pulses. High resolution IVI achieved comparable image quality to the standard sequence with large reductions in imaging time.

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