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目的探讨超声造影检查对肝脏血管瘤的诊断价值。方法临床确诊22例肝脏血管瘤患者经肘静脉丸式注入超声造影剂SonoVue2.4ml,在反向脉冲序列成像的低机械指数下实时观察肝脏血管瘤的灌注过程及回声变化规律。结果20例肝脏血管瘤患者在造影早期(动脉相或门脉相)发生周边环状强化或斑点状强化,并且缓慢向心性充填式增强,实质相肿瘤完全或大部分强化呈强回声,强度高于周围的肝实质;1例患者表现为动脉相快速整体增强,门脉相与实质相持续增强,其回声高于周边的肝组织;1例患者仅表现周边增强,中心始终不增强。结论超声造影检查肝脏血管瘤时有特征性表现,是诊断肝脏血管瘤的又一种新方法,诊断率明显高于常规超声检查。
Objective To investigate the diagnostic value of contrast-enhanced ultrasound in hepatic hemangiomas. Methods Twenty-two patients with hepatic hemangiomas diagnosed by intracranial injection of SonoVue2.4ml intracavitating injection of angiography were used to observe the perfusion and echo changes of hepatic hemangiomas in real time under the low mechanical index of reverse pulse sequence imaging. Results Twenty patients with hepatic hemangioma underwent peripheral annular enhancement or patchy enhancement in the early stage of angiography (angiography), and slowly increased their filling to the heart. The tumors of complete or partial enhancement of the parenchyma in most cases showed strong echogenicity and high intensity In the surrounding liver parenchyma, 1 patient manifested rapid overall enhancement of arterial phase, portal phase and parenchyma with continuous enhancement, and its echo was higher than the surrounding liver tissue; only one patient showed peripheral enhancement, the center is always not enhanced. Conclusion Contrast-enhanced ultrasound (CEUS) is a new method for the diagnosis of hepatic hemangiomas with diagnostic features that are significantly higher than those of conventional ultrasonography.