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System and method for combined time-resolved magnetic resonance angiography and perfusion imaging
专利权人:
Stephen J Riederer
发明人:
Stephen J Riederer,Norbert G Campeau,Clifton R Haider
申请号:
US13520302
公开号:
US09002430B2
申请日:
2010.12.29
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A method for performing magnetic resonance angiography and perfusion imaging using the same pulse sequence is provided. Time-resolved image data is acquired as a contrast agent passes through a subject. This image data is acquired by sampling Cartesian points in k-space that are contained within either a central region of k-space, or one of a plurality of different sets of radial sectors extending outwards from the central region. The image data is combined to form individual image frame data sets that are then reconstructed to produce a time series of image frames. From this time series, MR angiograms and perfusion maps are produced. With the added acquisition of calibration data, T1 relaxation parameters are estimated and quantitative perfusion maps produced.
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