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DUAL-CONTRAST MR IMAGING USING FLUID-ATTENUATION INVERSION RECOVERY (FLAIR)
专利权人:
Frederik Visser
发明人:
Frederik Visser
申请号:
US13258605
公开号:
US20120046539A1
申请日:
2010.03.25
申请国别(地区):
US
年份:
2012
代理人:
摘要:
The invention relates to a method of MR imaging of at least a portion of a body (10) of a patient placed in an examination volume of an MR device (1). The acquisition of high-resolution three-dimensional FLAIR images as well as T2-weighted images at high main magnetic field strength (>3 Tesla) results in unacceptable long scan times. The present invention contemplates a new and improved MR imaging method which overcomes this problem. The method of the invention comprises the steps of subjecting the portion of the body (10) to a first imaging sequence (S1) for acquiring a first signal data set immediately subsequent to the first imaging sequence (S1) subjecting the portion of the body (10) to an inversion RF pulse that inverses longitudinal magnetization within the portion after an inversion delay period (TI) subjecting the portion of the body (10) to a second imaging sequence (S2) for acquiring a second signal data set reconstructing first and second MR images from the first and second signal data sets respectively.
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