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Two-dimensional frequency-swept pulse with resilience to both B1 and B0 inhomogeneity.
Mullen, Michael; Kobayashi, Naoharu; Garwood, Michael.
Afiliación
  • Mullen M; Center for Magnetic Resonance Research and Department of Radiology, University of Minnesota, Minneapolis, MN, USA; School of Physics and Astronomy, University of Minnesota, Minneapolis, MN, USA.
  • Kobayashi N; Center for Magnetic Resonance Research and Department of Radiology, University of Minnesota, Minneapolis, MN, USA.
  • Garwood M; Center for Magnetic Resonance Research and Department of Radiology, University of Minnesota, Minneapolis, MN, USA. Electronic address: gar@cmrr.umn.edu.
J Magn Reson ; 299: 93-100, 2019 Feb.
Article en En | MEDLINE | ID: mdl-30590352
Applications of multidimensional spatially-selective pulses are sometimes limited by their long pulse durations resulting from the need to execute a modulated gradient waveform in concert with RF transmission. Here, we introduce a method to design two-dimensional selective adiabatic pulses using a Cartesian k-space trajectory. The full pulse can be sampled using various undersampled segments to create a multidimensional pulse resilient to large off-resonances. Moreover, the pulse can be designed to be resilient to B1+ inhomogeneity. Experimental demonstrations of fully segmented and single-shot k-space sampling patterns are presented.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Magn Reson Asunto de la revista: DIAGNOSTICO POR IMAGEM Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Magn Reson Asunto de la revista: DIAGNOSTICO POR IMAGEM Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos