Positive contrast visualization of nitinol devices using susceptibility gradient mapping
نویسندگان
چکیده
منابع مشابه
Phase Gradient Mapping (PGM) for Positive Contrast Generation
Introduction: Detecting paramagnetic contrast agent in vivo can be used in many applications such as cell tracking. Traditional T2-weighted sequence generates a signal loss appearing as a dark spot, referred to as negative contrast, at the site of paramagnetic contrast agent. Recently, there have been many efforts [1,2] to generate a positive contrast image by modifying pulse sequences. Liu et ...
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BACKGROUND CMR-guidance has the potential to improve tissue visualization during cardiovascular catheterization procedures and to reduce ionizing radiation exposure, but a lack of commercially available CMR guidewires limits widespread adoption. Standard metallic guidewires are considered to be unsafe in CMR due to risks of RF-induced heating. Here, we propose the use of RF-efficient gradient e...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2008
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.21688