Radiology:双源CT血管成像在检出肺动脉栓塞的价值

2019-04-04 shaosai MedSci原创

本研究旨在验证是否双源(DE)CT碘图有助于增加传统CT血管成像图像在诊断肺动脉栓塞(PE)的价值。

本研究旨在验证是否双源(DE)CT碘图有助于增加传统CT血管成像图像在诊断肺动脉栓塞(PE)的价值。

本研究纳入了1144例怀疑PE并行双源CT血管成像检查的患者。在1144次检查中包括1035例患者。记录传统CT中PE的位置、水平和类型(闭塞或非闭塞)。观察碘剂图中提示PE的充盈缺损征象。最后,观察CT血管成像碘剂图图像来检出额外的PE病变。利用Clopper-Pearson法计算百分比置信区间。

结果为,共有147/1144(12.8%)CT血管成像检查中,首次共检出372处PE。在评价DE CT碘图后,额外有27处PE在26/1144次检查中(2.3%; 95% CI: 1.5%, 3.3%)。在额外的27处PE中,6(22.2%)处为段水平的,21 (77.8%)为亚段,24 (88.9%)为闭塞性的,3(11.1%)为非闭塞性的。在分析了DE CT碘图后,11/1144CT血管成像检查更新为PE诊断

本研究表明,双源CT碘图对检出闭塞性段及亚段肺动脉栓子具有些许额外价值。

原始出处:

Weidman EK, Plodkowski AJ, Halpenny DF,et al.Dual-Energy CT Angiography for Detection of Pulmonary Emboli: Incremental Benefit of Iodine Maps.Radiology.DOI:10.1148/radiol.2018180594

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