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Methods and systems for spectral CT imaging
专利权人:
发明人:
Hewei Gao,Tonghe Wang,Jiahua Fan,Guangzhi Cao
申请号:
US14567828
公开号:
US09585626B2
申请日:
2014.12.11
申请国别(地区):
US
年份:
2017
代理人:
摘要:
Various methods and systems for dual energy spectral computed tomography imaging are provided. In one embodiment, a method for dual energy imaging comprises generating an image from a higher energy dataset and an updated lower energy dataset, wherein the updated lower energy dataset comprises a combination of a lower energy dataset and a pseudo projection dataset generated from the higher energy dataset. In this way, a weak low energy signal may be recovered, thereby enabling image reconstruction in spite of photon starvation and sparse views.
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