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流量补偿与单极扩散编码:关于肝脏扩散权重MRI中损伤大小和位置检测能力的差异
Alessandra Moldenhauer1, Frederik B Laun1, Hannes Seuss1,2
1Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Maximiliansplatz 3, 91054 Erlangen, Germany.
概括
流量补偿 (FloCo) 扩散加权成像 (DWI) 检测出更多的肝病变比单极 (MP) DWI. FloCo DWI提高了灵敏度,特别是在小病变和左肝叶的病变中.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 在瘤学瘤学.
背景情况:
- 肝脏扩散权重成像 (DWI) 易受运动工件的影响.
- 与单极 (MP) DWI相比,流动补偿 (FloCo) DWI可以减少心脏运动的人工物.
研究的目的:
- 为了比较FloCo DWI和MP DWI的病变检测能力.
- 评估损伤大小和位置对检测率的影响.
主要方法:
- 40名疑似焦点肝损伤 (FLL) 的患者接受了FloCo和MP DWI.
- 病变被细分,检测率,灵敏度和对比度与噪声比率 (CNR) 进行了比较.
主要成果:
- 在FloCo DWI检测到的FLL明显多于MP DWI (1211对1154).
- 在FloCo DWI中显示出更高的敏感性 (96.3%对91.7%) 和CNR.
- 用FloCo DWI检测到更多的额外病变在左肝叶.
结论:
- 与MP DWI相比,FloCo DWI可以提高FLL的检测能力.
- 改善的检测特别值得注意的是小病变和左肝叶的病变.
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