公开(公告)号：US20200110144A1

公开(公告)日：2020-04-09

申请号：US15749518

申请日：2018-02-01

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

Inventor： Lucio FRYDMAN ,  Zhiyong ZHANG ,  Shimon Michael LUSTIG

IPC: G01R33/561 ,  G01R33/54

Abstract: A method for MRI imaging of a subject includes spatially encoding spins in a slice of the subject in orthogonal first and second directions. The encoding includes applying a chirped radiofrequency (RF) pulse concurrently with application of a magnetic field gradient pulse along the first direction. After applying of the RF pulse, a second chirped RF pulse is applied concurrently with application of a second magnetic field gradient pulse, with polarity opposite that of the first gradient pulse. An encoding magnetic field gradient, constant from applying the first RF pulse until the end of applying the second RF pulse, is concurrently applied along the second direction. Following the encoding, a spin signal is measured concurrently with application of a constant readout magnetic field gradient.

公开(公告)号：US20160139222A1

公开(公告)日：2016-05-19

申请号：US14899173

申请日：2014-06-18

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

Inventor： Lucio FRYDMAN ,  Jean-Nicolas DUMEZ

IPC: G01R33/46 ,  G01R33/565 ,  G01R33/483

CPC classification number: G01R33/4633 ,  G01R33/4616 ,  G01R33/4806 ,  G01R33/4824 ,  G01R33/4828 ,  G01R33/483 ,  G01R33/4833 ,  G01R33/5607 ,  G01R33/5611 ,  G01R33/5612 ,  G01R33/56341 ,  G01R33/56527 ,  G01R33/56563

Abstract: The present invention provides magnetic resonance multidimensional selectivity based on spatiotemporal encoding (SPEN). In particular, multidimensional selectivity is achieved by the concurrent application of frequency-swept irradiation and magnetic field gradients for the sequential manipulation of spins in space in one dimension or more. Simultaneous spatial and spectral selectivity is disclosed.

Abstract translation: 本发明提供了基于时空编码（SPEN）的磁共振多维选择性。 特别地，多维选择性通过同时施加频扫扫描辐射和磁场梯度来实现在一维或更多维空间中顺序操纵旋转。 公开了同时的空间和光谱选择性。