CAJ | 학술논문

目的：采用受试者工作曲线(ROC)探讨超声造影对肝内小占位性病灶的诊断价值。方法收集30例肝内小占位性病灶患者，行超声造影，以病理诊断为金标准进行评价，采用ROC进行分析。结果肝癌组患者的时间-强度曲线的峰值强度、增强强度指数、上下升支斜率均明显高于良性肿块组患者(P<0.05)；ROC曲线AUC从小到大依次为上升支斜率、增强强度指数、下升支斜率、峰值强度，与参考线比较，差异均有统计学意义(P<0.05)。结论超声造影是一种可靠的诊断小肝癌的影像学检查，准确率较高，可为临床上小肝癌的正确诊断提供参考依据。
목적：채용수시자공작곡선(ROC)탐토초성조영대간내소점위성병조적진단개치。방법수집30례간내소점위성병조환자，행초성조영，이병리진단위금표준진행평개，채용ROC진행분석。결과간암조환자적시간-강도곡선적봉치강도、증강강도지수、상하승지사솔균명현고우량성종괴조환자(P<0.05)；ROC곡선AUC종소도대의차위상승지사솔、증강강도지수、하승지사솔、봉치강도，여삼고선비교，차이균유통계학의의(P<0.05)。결론초성조영시일충가고적진단소간암적영상학검사，준학솔교고，가위림상상소간암적정학진단제공삼고의거。
Objective To discuss the diagnosis effect of contrast-enhanced ultrasound for small hepatic le-sions based on receiver operating characteristic (ROC) curve. Methods Thirty patients of small hepatic lesions were collected for contrast-enhanced ultrasound. Using pathological diagnosis as the gold standard, the diagnosis effect of contrast-enhanced ultrasound was evaluated based on ROC. Results The peak intensity, enhanced intensity index, slope rate of ascending curve and descending curve of time-intensity curve in patients with liver cancer were signifi-cantly higher than those in patients with benign liver tumor (P<0.05). The slope rate of ascending curve, enhanced strength index, slope rate of descending curve, peak intensity had area under curve (AUC) of ROC curve from small to large, showing statistically significant differences with the reference line (P<0.05). Conclusion Contrast-en-hanced ultrasound is a reliable imaging examination method for diagnosing small hepatocellular carcinoma, with high accuracy. It can provide reference for the clinical diagnosis of small hepatocellular carcinoma.