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首页> 外文期刊>Journal of Clinical Ultrasound: JCU >Characterization of focal liver lesions using contrast-enhanced sonography with a low mechanical index mode and a sulfur hexafluoride-filled microbubble contrast agent.
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Characterization of focal liver lesions using contrast-enhanced sonography with a low mechanical index mode and a sulfur hexafluoride-filled microbubble contrast agent.

机译：使用具有低机械指数模式和六氟化硫填充的微泡造影剂的造影增强超声检查来表征局灶性肝病灶。

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PURPOSE: To characterize focal liver lesions (FLLs) using real-time contrast-enhancedsonography (CEUS) with a low mechanical index mode and a sulfur hexafluoride-filled microbubble contrast agent. METHODS: CEUS was performed in 190 patients with FLLs, including hepatocellular carcinoma (HCC) (n = 107), liver metastasis (n = 21), intrahepatic cholangiocarcinoma (ICC) (n = 7), liver hemangioma (n = 37), focal nodular hyperplasia (FNH) (n = 11), regenerative nodule (n = 6) and liver lipoma (n = 1). The cadence contrast pulse sequencing technique and the contrast agent SonoVue(R) were used for CEUS examination. The enhancement patterns during the arterial, portal, and late phases were evaluated. RESULTS: HCC showed hyperenhancement in 100 (93.5%) of 107 nodules during the arterial phase and hypoenhancement in 102 (95.3%) during the late phase. Liver metastases showed homogeneous enhancement in 8 of 21 (38.1%) nodules and a peripheral regular rim-like enhancement in 11 of 21 (52.4%) nodules during the arterial phase and marked hypoenhancement in 16 of 21 (76.2%) nodules during the late phase. ICC exhibited irregular rim-like enhancement in 4 of 7 (57.1%) nodules during the arterial phase and hypo-enhancement in 7 of 7 (100%) nodules during the late phase. Hemangioma showed peripheral nodular hyperenhancement, and progressive centripetal enhancement was seen in 35 of 37 (94.6%) lesions during the arterial phase. All 11 cases of FNH exhibited homogeneous hyperenhancement during the arterial phase and hyperenhancement (n = 1) or isoenhancement (n = 9) during the late phase. The sensitivity, specificity, and positive predictive value, respectively, were 88.8%, 89.2%, and 91.3% for HCC; 81%, 100%, and 100% for liver metastasis; 57.1%, 100%, and 100% for ICC; 94.6%, 100%, and 100% for liver hemangioma; and 90.9%, 97.8%, and 71.4% for FNH. CONCLUSIONS: Low-mechanical index CEUS permits real-time, complete assessment of vascularity in FLLs, which in turn facilitates their characterization.
机译：目的：使用低机械指数模式和六氟化硫填充的微泡造影剂的实时对比增强超声（CEUS）来表征局灶性肝病变（FLL）。方法：对190例FLL患者进行CEUS，包括肝细胞癌（HCC）（n = 107），肝转移（n = 21），肝内胆管癌（ICC）（n = 7），肝血管瘤（n = 37），局灶性结节性增生（FNH）（n = 11），再生结节（n = 6）和肝脂瘤（n = 1）。节奏造影剂脉冲测序技术和造影剂SonoVue（R）用于CEUS检查。评估了动脉，门脉和后期的增强模式。结果：HCC在动脉期显示107个结节中有100个（93.5％）过度增强，而在晚期则显示102个中有（95.3％）过度增强。在动脉期，肝转移显示21个结节中的8个（38.1％）均一性增强，21个结节中的11个（52.4％）周围有规则的边缘样边缘增强，晚期21个结节中的16个（76.2％）显着增强相。在动脉期，ICC在7个结节中有4个（57.1％）的结节显示出不规则的边缘样增强，而在后期则显示7个结节中有7个（100％）的结节增强不足。血管瘤显示出周围结节性过度增强，在动脉期，在37个病变中的35个（94.6％）中发现进行性向心增强。 FNH的所有11例在动脉期均表现出均一性的过度增强，而在晚期则均表现出均性的增强（n = 1）或同等增强（n = 9）。对HCC的敏感性，特异性和阳性预测值分别为88.8％，89.2％和91.3％。肝转移的比例分别为81％，100％和100％; ICC为57.1％，100％和100％;肝血管瘤为94.6％，100％和100％; FNH分别为90.9％，97.8％和71.4％。结论：低力学指数CEUS可以实时，完整地评估FLL中的血管，从而有助于其表征。

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