ВАН ДЕР МЕЛЕН Петер (NL),БУРНЕРТ Петер (NL),НЕРКЕ Кай (NL)
申请号：
RU2013150082/14
公开号：
RU2013150082A
申请日:
2012.04.02
申请国别(地区):
RU
年份:
2015
代理人:
摘要：
1. A method for magnetic resonance (MR) imaging, at least the body portion (10), wherein the method comprises the steps of: - act on the body portion (10) of an imaging sequence of radio frequency (RF) pulses and switched gradient magnetic field, and visualizing sequence is stimulated echo sequence, comprising: i) at least two preparatory RF pulse emitted in the direction of the body portion (10) during the preparatory period, ii) vnerezonansny RF pulse, causing the effect of the Bloch-Siegert emitted towards the body portion (10) during the preparatory period within the time interval between at least two preparatory RF pulses, and iii) one or more refocusing RF pulses emitted in the direction of the body portion (10) during the collection period, the next time the preparatory period - collect one or more MR signals stimulated echo during the collection period - receive field map B, showing the spatial distribution of the RF field I rf pulses within the body portion (10) of MR signals collected stimulated eho.2. A method according to Claim. 1, wherein each of the at least two preparatory RF pulses characterized revolution angle of substantially 90 ° .3. A method according to claim. 2, wherein at least one RF preparation pulse is a composite impulsom.4. A method according to Claim. 1, wherein at least two preparatory RF pulse are spatially neselektivnymi.5. A method according to Claim. 1, wherein a plurality of MR signals generated by the stimulated echo soot1. Способ магнитно-резонансной (МР) визуализации, по меньшей мере, участка тела (10), при этом, способ содержит этапы, на которых:- воздействуют на участок тела (10) визуализирующей последовательностью радиочастотных (РЧ) импульсов и переключаемых градиентов магнитного поля, причем визуализирующая последовательность является последовательностью стимулированного эхо, включающей в себя:i) по меньшей мере, два подготовительных РЧ импульса, излучаемых в направлении участка тела (10) в течение подготовительного период
