KRISHNA SHRINIVAS NAYAK,YI GUO,ROBERT MARC LEBEL,YINGHUA ZHU,SAJAN GOUD LINGALA
申请号：
US15595156
公开号：
US20170325709A1
申请日:
2017.05.15
申请国别(地区):
US
年份:
2017
代理人:
摘要：
Tracer kinetic models are utilized as temporal constraints for highly under-sampled reconstruction of DCE-MRI data. The method is flexible in handling any TK model, does not rely on tuning of regularization parameters, and in comparison to existing compressed sensing approaches, provides robust mapping of TK parameters at high under-sampling rates. In summary, the method greatly improves the robustness and ease-of-use while providing better quality of TK parameter maps than existing methods. In another embodiment, TK parameter maps are directly reconstructed from highly under-sampled DCE-MRI data. This method provides more accurate TK parameter values and higher under-sampling rates. It does not require tuning parameters and there are not additional intermediate steps. The proposed method greatly improves the robustness and ease-of-use while providing better quality of TK parameter maps than conventional indirect methods.
