石头撞击的放射性迹象在预测自发石头穿过的预测中没有任何价值
Marcin Popiolek1, Mats Lidén2, Petros Georgouleas3
1Department of Urology, Faculty of Medicine and Health, Örebro University, 701 85, Örebro, Sweden. marcin.popiolek@regionorebrolan.se.
Urolithiasis
|August 6, 2024
概括
石头撞击的放射性迹象并不能改善石头尺寸以外的自发石头通道 (SSP) 的预测. 尿道壁厚度测量在观察者中显示出中度可靠性.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 自发石通道 (SSP) 预测取决于石块的大小和位置.
- 石头撞击的放射性迹象 (RSSI) 在预测SSP.中未得到充分利用.
- 评估尿道壁厚度 (UWT) 的观察者间一致性对于可靠的评估至关重要.
研究的目的:
- 为了确定RSSI是否除了石头大小之外,还可以预测SSP.
- 评估SSP的UWT和尿道直径的预测值.
- 评估UWT测量的观察者间可靠性.
主要方法:
- 对160名患有单个上部/中部尿路结石的患者在非增强型计算机断层扫描 (NCCT) 上进行了回顾性分析.
- 通过四个盲读器进行的RSSI (UWT,尿管直径,衰减) 的测量.
- 统计分析包括ROC曲线和UWT的观察者间协议.
主要成果:
- 在20周内,SSP发生在61%的患者身上;较小的石头与较高的SSP率有关.
- 仅石材长度就有0.90的AUC来预测SSP;添加UWT和直径就产生了0.91.90的AUC.
- 尿道衰减没有预测SSP,UWT显示了适度的观察者间变异性 (±2.0毫米LOA).
结论:
- RSSI并没有显著提高石头大小对自发石头通道的预测值.
- 尿道壁厚度测量显示出中度可靠性,但表现出显著的观察者间变化.
- 石头的大小仍然是自发石头通道的主要成像预测指标.
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