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Method for determining the spatial distribution of magnetic resonance signals in subvolumes of an object under examination
专利权人:
Wolfgang Ruhm
发明人:
Wolfgang Ruhm,Johannes Schneider,Peter Ullmann
申请号:
US14009116
公开号:
US09958522B2
申请日:
2012.04.18
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A method for determining the spatial distribution of magnetic resonance signals from at least one of N subvolumes predefines a reception encoding scheme and determines unique spatial encoding for at least one of the subvolumes but not for the entire volume under examination (UV). A transmission encoding scheme is also defined, wherein encoding is effected via the amplitude and/or phase of the transverse magnetization. The temporal amplitude and phase profile of the RF pulses is then calculated and each reception encoding step is carried out I times with variations according to the I transmission encoding steps in the transmission encoding scheme. The method makes it possible to largely restrict the spatially resolving MR signal encoding and image reconstruction to subvolumes of the object under examination without the achievable image quality sensitively depending on imperfections in the MR apparatus.
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