摘要
目的分析肝脏局灶性病变应用CT能谱成像进行诊断的效果。方法回顾性分析70例肝脏局灶性病变患者资料,观察CT能谱成像结果。结果患者病灶-肝脏对比噪声比(CNR)变化有规律,但也有例外。动脉期病灶和正常肝组织碘浓度比值的敏感性与特异性均为100%。动脉期病灶与正常肝组织浓度比值(LNR)为(1.05±0.13),门静脉期为(1.01±0.14);动脉期标准化碘浓度(NIC)为(0.93±0.51)g/L,门静脉期为(0.52±0.15)g/L;动脉期碘浓度(ICD)为(0.46±0.07)g/L,门静脉期为(0.35±0.08)g/L。结论 CT能谱成像用于诊断肝脏局灶性病变,准确性较好,具有推广应用价值。
Objective To analyze effect by CT spectral imaging in diagnosis of focal liver lesion. Methods Clinical data of 70 focal liver lesion patients were retrospectively analyzed, and CT spectral imaging outcomes were observed. Results Lesion-liver contrast noise ratio（CNR） was regular in changing, while there also was exception. Sensibility and specificity were all 100% by arterial lesions to normal liver tissue iodine concentration ratio. Arterial lesions to liver tissue concentration ratio（LNR） was（1.05±0.13）, and portal venous ratio was（1.01±0.14）. Arterial normalized iodine concentration（NIC） was（0.93±0.51） g/L and portal venous concentration was（0.52±0.15） g/L. Arterial iodine concentration（ICD） was（0.46±0.07） g/L and portal venous concentration was（0.35±0.08） g/L. Conclusion CT spectral imaging contains good accuracy in diagnosis of focal liver lesion, and it contains promotion and application value.
出处
《中国实用医药》
2016年第26期17-18,共2页
China Practical Medicine
