Back
In-vivo Z-spectra acquisition with decreased direct saturation using adiabatic spin-lock pulses at 9.4T
{Off-resonant spin-lock imaging enables a lot of possibilities for T1$\varrho$ and chemical exchange (CE) sensitive applications. For this purpose, a matching amplitude of the tipping and the locking pulse is required, which can be difficult due to the high power requirements of adiabatic pulses. In this work, we present a newly shaped adiabatic half-passage pulse, usable at low power to match the amplitude of the pulses. Off- and on-resonant saturated images acquired at 9.4T are shown. The new pulse shape is able to generate robust images with comparatively low power at ultra-high-field strengths.}
@misc{HerzGSZ2018, title = {{In-vivo Z-spectra acquisition with decreased direct saturation using adiabatic spin-lock pulses at 9.4T}}, booktitle = {{Joint Annual Meeting ISMRM-ESMRMB 2018}}, abstract = {{Off-resonant spin-lock imaging enables a lot of possibilities for T1$\varrho$ and chemical exchange (CE) sensitive applications. For this purpose, a matching amplitude of the tipping and the locking pulse is required, which can be difficult due to the high power requirements of adiabatic pulses. In this work, we present a newly shaped adiabatic half-passage pulse, usable at low power to match the amplitude of the pulses. Off- and on-resonant saturated images acquired at 9.4T are shown. The new pulse shape is able to generate robust images with comparatively low power at ultra-high-field strengths.}}, year = {2018}, slug = {herzgsz2018}, author = {Herz, K and Gandhi, C and Scheffler, K and Zaiss, M} }