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COMPENSATION OF COMPENSATION OF COMPARISON EFFECTS IN DIFFERENT MAGNETRESONZTOMOGRAPHY

机译：在不同磁力测定仪中的比较效果补偿补偿

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摘要

A procedure for recording a sample structure is shown. The process involves generating a magnetic field to align magnetic dipole along a first spatial direction, stimulating, at a time t= 0, a preposition movement of magnetic dipole by means of a first electromagnetic field, an invert, at a time

<mrow><mi>t</mi><mo>=</mo><mfrac><mrow><mi>T</mi><mi>E</mi></mrow><mn>2</mn></mfrac><mo>,</mo></mrow>

the magnetic dipole, by means of a second electromagnetic field to affect a spinecho at a time t = TE, a generation of magnetic field radius pulses causes the magnetic field radii along a second spatial direction, according to a gradient profile G(t) for the

<mrow><mstyle displaystyle="true"><mrow><mo>∫</mo><mrow><msubsup><mrow /><mn>0</mn><mrow><mi>T</mi><mi>E</mi></mrow></msubsup><mi>G</mi><mrow><mo>(</mo><mi>t</mi><mo>)</mo></mrow><mi>d</mi><mi>t</mi><mo>=</mo><mn>0</mn></mrow></mrow></mstyle></mrow>

is valid, with the gradient density profile G(t) for diffusion lighting between 0 and

<mrow><mfrac><mrow><mi>T</mi><mi>E</mi></mrow><mn>2</mn></mfrac></mrow>

has a first positive gradient pulse and a first negative gradient pulse, and between

<mrow><mfrac><mrow><mi>T</mi><mi>E</mi></mrow><mn>2</mn></mfrac></mrow>

and TE has a large number of second positive gradient pulses and a large number of second negative gradient pulses to compensate for accompanying field effects; or for diffusion lighting between

<mrow><mfrac><mrow><mi>T</mi><mi>E</mi></mrow><mn>2</mn></mfrac></mrow>

and TE has a first positive gradient pulse and a first negative gradient pulse and between 0 and

<mrow><mfrac><mrow><mi>T</mi><mi>E</mi></mrow><mn>2</mn></mfrac></mrow>

to compensate for accompanying field effects has a large number of second positive gradient pulses and a large number of second negative gradient pulses.

机译：示出了用于记录样品结构的过程。该过程涉及产生磁场以沿着第一空间方向对准磁性偶极子，在时间t = 0借助于第一电磁场，逆变，磁偶极物的介词运动

<！[cdata [t=te2，]]>磁偶像，偶极电磁场以时间t = te影响Spinecho，根据用于梯度的剖面G（t），磁场半径脉冲的产生导致磁场半径导致磁场半径沿第二空间方向引起第二空间方向<！[cdata [\int0eg（）dt=0]]>有效，具有梯度密度概况g（t），用于0之间的扩散灯光和<！[cdata [te2]]>具有第一正渐变脉冲和第一负梯度脉冲，而且<！[cdata [te2]]>和TE具有大量的第二个正梯度脉冲和大量的第二个负梯度脉冲，以补偿伴随的现场效果;或者之间的扩散照明

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公开/公告号DE102019128417A1

专利类型
公开/公告日2021-04-22

原文格式PDF
申请/专利权人 FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG;
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申请/专利号DE201910128417
发明设计人 FREDERIK LAUN;THERESA PALM;
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申请日2019-10-21
分类号G01R33/38;
国家 DE
入库时间 2022-08-24 18:20:51

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