首页>
外国专利>
Prospective respiratory triggering with retrospective validation for 4D-magnetic resonance imaging
Prospective respiratory triggering with retrospective validation for 4D-magnetic resonance imaging
展开▼
机译:4D磁共振成像回顾性验证的前瞻性呼吸触发
展开▼
页面导航
摘要
著录项
相似文献
摘要
A magnetic resonance imaging system connectable to a respiration monitor configured to provide an output signal whose level represents a respiration state. A prospective acquisition scheme for acquiring magnetic resonance images at each of a set of selected respiration states is provided, the triggering on the selected respiration states being based on predetermined threshold output signal levels of the respiration monitoring means, Respiration states at which magnetic resonance images were actually acquired, are compared with the selected respiration states according to the prospective acquisition scheme and predetermined ranges of tolerance of the selected respiration states, The prospective acquisition scheme is modified, if one of the actual respiration states lies outside the predetermined range of tolerance of the selected respiration state, and magnetic resonance imaging acquisition is executed pursuant to the modified prospective acquisition scheme.
展开▼