MR CAT scan: a modular approach for hybrid imaging |
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Authors: | Claudia Hillenbrand Dietbert Hahn Axel Haase Peter M Jakob |
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Affiliation: | Physikalisches Institut, EP5, Universit]at W]urzburg, Am Hubland, 97074, W]urzburg, Germany. hillebrand@physik.uni-wuerzberg.de |
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Abstract: | In this study, a modular concept for NMR hybrid imaging is presented. This concept essentially integrates different imaging
modules in a sequential fashion and is therefore called CAT (combined acquisition technique). CAT is not a single specific
measurement sequence, but rather a sequence design concept whereby distinct acquisition techniques with varying imaging parameters
are employed in rapid succession in order to coverk-space. The power of the CAT approach is that it provides a high flexibility toward the acquisition optimization with respect
to the available imaging time and the desired image quality. Important CAT sequence optimization steps include the appropriate
choice of thek-space coverage ratio and the application of mixed bandwidth technology. Details of both the CAT methodology and possible
CAT acquisition strategies, such as FLASH/EPIRARE/EPI-and FLASH/BURST-CAT are provided. Examples from imaging experiments
in phantoms and healthy volunteers including mixed bandwidth acquisitions are provided to demonstrate the feasibility of the
proposed CAT concept. |
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Keywords: | Fast MR imaging Hybrid imaging BURST EPI FLASH RARE Mixed bandwidth |
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