脉冲反转成像增强超声：一种用于鉴别胰腺囊性肿瘤的新成像模式。
Echo-enhanced ultrasound with pulse inversion imaging: A new imaging modality for the differentiation of cystic pancreatic tumours.
作者信息
Rickes Steffen, Mönkemüller Klaus, Malfertheiner Peter
机构信息
Department of Gastroenterology, Hepatology and Infectious Diseases, Leipziger Str. 44, 39120 Magdeburg, Germany. steffen.
出版信息
World J Gastroenterol. 2006 Apr 14;12(14):2205-8. doi: 10.3748/wjg.v12.i14.2205.
AIM
To describe and discuss echo-enhanced sonography in the differential diagnosis of cystic pancreatic lesions.
METHODS
The pulse inversion technique (with intravenous injection of 2.4 mL SonoVue) or the power-Doppler mode under the conditions of the 2nd harmonic imaging (with intravenous injection of 4 g Levovist) was used for echo-enhanced sonography.
RESULTS
Cystadenomas frequently showed many vessels along fibrotic strands. On the other hand, cystadenocarcinomas were poorly and chaotically vascularized. "Young pseudocysts" were frequently found to have a highly vascularised wall. However, the wall of the "old pseudocysts" was poorly vascularized. Data from prospective studies demonstrated that based on these imaging criteria the sensitivities and specificities of echo-enhanced sonography in the differentiation of cystic pancreatic masses were >90%.
CONCLUSION
Cystic pancreatic masses have a different vascularization pattern at echo-enhanced sonography. These characteristics are useful for their differential diagnosis, but histology is still the gold standard.
目的
描述并探讨超声造影在胰腺囊性病变鉴别诊断中的应用。
方法
采用脉冲反转技术（静脉注射2.4 mL声诺维）或在二次谐波成像条件下的能量多普勒模式（静脉注射4 g Levovist）进行超声造影。
结果
囊腺瘤常显示沿纤维化条索有许多血管。另一方面，囊腺癌血管分布稀疏且紊乱。“早期假性囊肿”常发现其壁有高度血管化。然而，“陈旧性假性囊肿”的壁血管化程度较差。前瞻性研究数据表明，基于这些成像标准，超声造影在鉴别胰腺囊性肿块中的敏感性和特异性均>90%。
结论
胰腺囊性肿块在超声造影时有不同的血管化模式。这些特征有助于其鉴别诊断，但组织学仍是金标准。
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