摘要
目的评价CT平扫预测咯血患者非支气管动脉体循环侧支供血的价值。方法对56例咯血患者术前行螺旋CT平扫。将邻近病变肺实质的胸膜增厚大于3mm作为咯血患者存在侧支供血的标准。以血管造影结果为参照,与患者胸部CT扫描进行比较,对CT预测不同部位肺部病变存在侧支供血的敏感性、特异性及准确性进行评价。结果CT预测侧支供血总的敏感性、特异性及准确率分别为72.73%、95.00%及91.11%。其敏感性于上外侧及后外侧病变相对较高,而于前内侧、肺底及下内侧病变相对较低;特异性及准确性于以上各部位均较好。结论CT平扫在一定程度上能够预测咯血患者侧支供血,对选择性血管造影及栓塞治疗具有重要参考价值。
Objective To assess the prediction value of nonbronchial systemic arterial supply in hemoptysis patients with non-enhanced CT. Methods Fifty-six consecutive patients with hemoptysis underwent non-enhanced CT. Thickness of pleural adjacent to parenchymal lesion larger than 3 mm was regarded as index of nonbronchial systemic arterial supply. Conventional angiography was used as the standard of reference. CT findings were compared with those of conventional angiography. The sensitivity, specificity, and accuracy of CT for predicting nonbronchial systemic arterial supply were assessed. Results The sensitivity, specificity and accuracy of CT for predicting nonbronchial systemic arterial supply were 72.73 %, 95.00% and 91.11%, respectively. Sensitivity was higher when nonbronehial systemic arterial supply located in superolateral and posterolateral lung, and lower in anteromedial and inferior lung. Specificity and accuracy were high for predicting nonbronehial systemic arterial supply in every locations. Conclusion Non-enhanced CT can predict nonbronchial systemic arterial supply in patients with hemoptysis, which is helpful for selecting angiography and embolization.
出处
《中国介入影像与治疗学》
CSCD
2009年第4期363-366,共4页
Chinese Journal of Interventional Imaging and Therapy
关键词
咯血
体层摄影术
X线计算机
血管造影
侧支循环
Hemoptysis
Tomography, X ray computed
Angiography
Collateral circulation
