使用快速千伏切换DECT的低keV虚拟单能图像,用于区分成年人复杂和不复杂的尾炎
Dhanawin Wongsaengchan1, Jitti Chatpuwaphat1, Shanigarn Thiravit1
1Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Abdominal radiology (New York)
|July 17, 2025
概括
使用低keV虚拟单能图像的双能CT (DECT) 有助于区分尾炎的严重程度. 结合50-keV和120-kVp等值系列,可以提高墙壁增强缺陷的检测和放射科医生的信心.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 胃肠道成像 - 胃肠道成像
背景情况:
- 带有低keV虚拟单能成像 (VMI) 的双能CT (DECT) 可以改善炎症尾壁中的可视化.
- 低keV的VMI在区分复杂和非复杂的尾炎的实用性需要进一步研究,特别是与非手术管理的趋势.
研究的目的:
- 评估不同DECT图像系列的诊断性能,以区分复杂和不复杂的尾炎.
- 为了比较各种DECT系列中尾壁增强缺陷的检测率和放射科医生的信心.
主要方法:
- 对155名患有病理确认的急性尾炎的成年患者进行了回顾性分析,这些患者接受了手术前的DECT.
- 放射科医生对50keV单能,120kVp等值和联合DECT系列进行审查,以评估尾壁增强缺陷.
- 在三个DECT系列中,对诊断准确度,灵敏度,特异性,检测率和放射科医生的信心进行比较.
主要成果:
- 组合的50-keV/120-kVp-相当的DECT系列在区分复杂的 (59/155) 和不复杂的尾炎方面取得了85.2%的准确性.
- 组合系列的灵敏度和特异性分别为83.1%和86.5%.
- 与50keV系列单独 (72.1%) 相比,综合系列 (91.8%) 的放射科医生信心显著更高.
结论:
- 将低keV虚拟单能DECT与120kVp相当的图像相结合,可以更好地检测尾壁增强缺陷.
- 这种综合方法增强了放射科医生的信心,使他们能够在成年患者中区分复杂的尾炎和不复杂的尾炎.
- 在急性尾炎中,DECT成像对指导治疗决策充满希望.
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