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Abstract #0610

In-plane simultaneous multi-segment imaging: example employing diffusion-weighted imaging using a 2D RF pulse

Kaibao Sun1, Zheng Zhong1,2, Zhongbiao Xu3, Guangyu Dan1,2, M. Muge Karaman1,2, and Xiaohong Joe Zhou1,2,4
1Center for MR Research,University of Illinois at Chicago, Chicago, IL, United States, 2Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, United States, 3Department of Radiotherapy,Cancer Center,Guangdong Provincial People's Hospital & Guangdong Academy of Medical Science, Guangzhou, China, 4Departments of Radiology and Neurosurgery, University of Illinois at Chicago, Chicago, IL, United States

Reduced field of view (rFOV) imaging offers several advantages, including high spatial resolution and reduced image distortion. We propose an in-plane simultaneous multi-segment (IP-SMS) imaging method to extend the benefits of rFOV to full FOV imaging. Unlike the conventional simultaneous multi-slice imaging, IP-SMS performs in-plane simultaneous multi-segment excitation by utilizing the periodic replicas of excitation profile of a 2D RF pulse, followed by parallel segment reconstruction using a set of “virtual” coil sensitivity profiles. We have demonstrated the IP-SMS imaging technique on phantoms and human brains where high-resolution diffusion images were obtained with minimal distortion.

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