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基于3D nnU-Net的门静脉系统4D Flow MRI全自动分割系统:实现高效精准血 ...
本研究针对门静脉4D Flow MRI后处理耗时长、人工分割一致性差的问题,开发了一种基于3D nnU-Net的全自动分割系统。该系统在31例内部测试中达到门静脉系统Dice评分0.81、主干门静脉0.87的精度,血流参数相关性优异(流量ρ≥0.96),且将分割时间从35分钟缩短至10秒 ...
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