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首页> 外文期刊>Polish Journal of Radiology >Usefulness of contrast-enhanced phase-inversion harmonic power Doppler imaging in the diagnosis of hepatic hemangiomas
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Usefulness of contrast-enhanced phase-inversion harmonic power Doppler imaging in the diagnosis of hepatic hemangiomas

机译：造影剂增强型相位反转谐波功率多普勒成像在肝血管瘤诊断中的实用性

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Background:The purpose of this study was to assess the sensitivity of echo-enhanced phase-inversion power depicting the vascular enhancement of hemangiomas, thus confirming the exact diagnosis. Material/Methods: Twenty patients were examined. The presence of hemangioma was confirmed by surgical resection (n=2), two-phase (hepatic arterial and portal phases) contrast-enhanced spiral computed tomography (n=8), or sonographic follow-up, which showed no change in lesion size for at least 6 months (n=10). Prior to enhanced sonography, all patients had undergone both native B-mode and tissue harmonic imaging mode sonography, color Doppler, and power Doppler helical CT examinations. After injection of 2.5 g of Levovist intravenously, analysis of the arrival of contrast agent was performed by phase-inversion power Doppler sonography.Results:Evaluation of the 20 patients revealed 37 hemangiomas. Color and power Doppler sonography were non-specific for hemangioma in our examination. However, based on the phase-inversion power Doppler sonography findings, the 20 patients with the 37 hemangiomas were diagnosed. Typical features of hemangioma, such as peripheral globular and rim-like enhancement followed by a slow centripetal fill-in, were clearly visible. In 3 cases of small hemangiomas, computed tomography had failed to disclose the pathology, while phase-inversion sonographic images were completely suggestive of what was later confirmed at 6 months follow-up.Conclusions:Based on our results, we can recommend phase-inversion power Doppler sonography in the differential diagnosis of hemangioma by visualizing the characteristic rim-like enhancement pattern followed by a slow centripetal fill-in as an excellent diagnostic modality.
机译：背景：本研究的目的是评估描绘血管瘤血管增强的回声增强相位反转功率的敏感性，从而确认确切的诊断。材料/方法：检查二十名患者。通过手术切除（n = 2），两相（肝动脉和门静脉期）对比增强螺旋计算机断层扫描（n = 8）或超声检查证实了血管瘤的存在，但未发现病变大小持续至少6个月（n = 10）。在增强超声检查之前，所有患者均接受了自然B型和组织谐波成像模式的超声检查，彩色多普勒和功率多普勒螺旋CT检查。静脉注射2.5克Levovist后，通过倒相功率多普勒超声检查造影剂的到达。结果：对20例患者进行评估，发现37例血管瘤。在我们的检查中，彩色多普勒超声检查对血管瘤没有特异性。然而，根据倒相功率多普勒超声检查的结果，诊断出20例37例血管瘤患者。血管瘤的典型特征，如周围的球状和边缘样增强，然后缓慢向心填充，是显而易见的。在3例小血管瘤中，计算机断层扫描未能揭示其病理学，而相位反转超声图像完全暗示了随后6个月的随访证实。结论：根据我们的结果，我们建议进行相位反转可视化特征性边缘样增强模式，然后缓慢地向心填充作为一种出色的诊断方法，从而在血管瘤的鉴别诊断中使用强力多普勒超声检查。

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