摘要
目的探讨CEUS对细菌性肝脓肿的诊断价值。方法分析34例肝脓肿的常规超声及CEUS图像,由2名超声科医师对病变的性质进行诊断。结果①常规超声:多数病灶形态规则、边界清楚、内部为混合回声、内部血流贫乏。②CEUS:以不均匀、"网格样"及周边环状或结节样增强多见,61.76%(21/34)病灶动脉相与周围肝组织同时增强。等增强为最常见增强方式。41.18%(14/34)病灶在门脉相及延迟相出现消退,58.82%(20/34)未出现消退。CEUS更准确地评估了病灶内坏死区的面积。③读取造影图像后,医师诊断信心度和诊断结果一致性得到提高。结论细菌性肝脓肿常规超声表现多样,大部分CEUS符合肝脏良性病变特点,少部分与恶性肿瘤相似。CEUS能准确评估病灶内坏死灶范围,提高医师对病变性质诊断的信心度及一致性。
Objective To explore the characteristics of bacterial liver abscess and the diagnostic value of CEUS for it.Methods Characteristics of conventional ultrasound and CEUS images of 34patients with bacterial liver abscess were analyzed.After reviewing the images,benign and malignant lesions were analyzed by two doctors separately.Results ①The majority of lesions shaped oval or round,had distinct borderline,mixed echotexture and poor blood supply in conventional ultrasound.②Heterogenous,honeycomb like and peripheral nodular or circularity enhancement were the most commonly patterns in CEUS.About 61.76%（21 / 34） lesions synchronously enhanced with the surrounding liver parenchyma in arterial phase,iso-enhancement was the most commonly pattern.Intensity of enhancement decreased in 41.18%（14 / 34） lesions in portal venous and late phase,but not in 58.82%（20 / 34） lesions.Area of necrosis was more accurately identified at CEUS.③Level of diagnosis confidence and consistency increased after analyzing images of CEUS.Conclusion The appearance of bacterial liver abscess is verified in conventional ultrasound.The majority of lesions are consistent with the characteristics of liver benign lesions at CEUS,while the minority imitate liver malignancy.CEUS can assess the area of necrosis in the lesion accurately,therefore improve diagnosis confidence and consistency.
出处
《中国医学影像技术》
CSCD
北大核心
2012年第2期318-321,共4页
Chinese Journal of Medical Imaging Technology
关键词
超声检查
肝脓肿
信心度
Ultrasonography
Liver abscess
Confidence
