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SYSTEM AND METHOD FOR IMPROVED ACCELERATED MAGNETIC RESONANCE IMAGING USING ROI MASKING
专利权人:
Stephen J. Riederer
发明人:
Stephen J. Riederer
申请号:
US13449500
公开号:
US20130281831A1
申请日:
2012.04.18
申请国别(地区):
US
年份:
2013
代理人:
摘要:
A system and method for creating at least one angiographic image using a magnetic resonance imaging (MRI) system includes acquiring, with the MRI system and using parallel imaging techniques, a pre-contrast image data set and a post-contrast image data set of a portion of a subject having a vascular structure extending therethrough and subtracting the pre-contrast and the post-contrast image data set to generate a difference angiogram data set. The method includes reconstructing the difference angiogram data set into at least one aliased angiogram, creating a region of interest (ROI) mask from an image of the portion of the subject, and indicating a masking border surrounding the vascular structure and substantially excluding tissues surrounding the vascular structure. The method then includes de-aliasing the at least one aliased angiogram using the ROI mask to create an angiogram of the portion of the subject.
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