| 李华,于晓玲,刘利平,王旸.肝脏孤立性坏死结节超声造影表现[J].中国医学影像技术,2006,22(11):1697~1699 |
| 肝脏孤立性坏死结节超声造影表现 |
| Characteristics of solitary necrotic nodule of liver on contrast enhanced ultrasonography |
| 投稿时间：2006-08-10 修订日期：2006-09-16 |
| DOI： |
| 中文关键词: 超声检查 造影剂 孤立性坏死结节 肝脏 |
| 英文关键词:Ultrasonography Contrast agents Solitary necrotic nodule Liver |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨肝脏孤立性坏死结节的超声造影表现特征。方法 对8例肝脏孤立性坏死结节进行常规超声及超声造影检查,全部病例均经病理证实。记录常规超声检查中病灶大小、形态、边界、回声、彩色血流显像等及超声造影检查中病灶的增强表现。采用Sequoia 512超声仪及对比脉冲序列(CPS)造影技术。造影剂选用SonoVue,经肘正中静脉团注。结果 8例常规灰阶超声均呈不均质偏低回声结节,形态为葫芦状或融合的分叶状,边界尚清楚,彩色多普勒成像(CDFI)显示内部无血流信号。超声造影特征:8例病灶在造影动脉期、门静脉期及延迟期呈内部无增强表现,5例有动脉期、门脉期周边轻中度环状增强。结论 孤立性坏死结节超声造影具有共同的特征性表现,即病变内部三期无增强,周边可伴有或不伴动、门脉期环状增强。超声造影是诊断肝孤立性坏死结节的有价值的检查方法。 |
| 英文摘要: |
| Objective To investigate the characteristics of solitary necrotic nodule of liver in contrast enhanced ultrasonography. Methods Conventional ultrasonography (US) and contrast enhanced ultrasonography (CEUS) examination were performed in 8 patients with pathologically proven solitary necrotic nodule (SNN) of liver. The size, shape, boundary, echogenicity, and color Doppler flow imaging (CDFI) of nodule by conventional US, and the perfusion and echogenicity of nodule by CEUS with SonoVue and contrast pulse sequence (CPS) technique, were recorded. Results On conventional US, 8 cases were heterogeneously hypoechoic lesions with clear boundary and no blood flow signal. On CEUS, in the arterial, portal and late phases, all 8 cases showed no contrast enhancement within the lesion. Five cases showed mild-moderate circular enhancement surrounding lesion in arterial-portal phase. Conclusion On CEUS, SNNs show general characteristics that there should be no contrast enhancement within the lesion and /or mild-moderate circular enhancement surrounding lesion in arterial-portal phase. CEUS is a valuable examination to diagnose SNN. |
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