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目的:评价螺旋CT诊断肝血管瘤的影像学价值。方法:回顾分析经临床明确诊断的41例肝血管瘤病例的螺旋CT征象。结果:肝血管瘤于平扫为境界清楚,密度均匀的圆形或卵圆形低密度影,部分较大病灶中央可见星形或不规则更低密度区。增强扫描为特征性动脉期边缘结节样或中心强化(密度与同层腹主动脉接近),强化区进行性向中央扩展,延迟扫描病灶呈等密度填充,较大病灶中央可见始终不填充区同平扫。其较以往普通CT可发现动脉期的典型征象并不受呼吸影响,且不宜遗漏病灶,诊断准确率很高。结论:应用螺旋CT诊断肝血管瘤是最佳、最有效、可确诊的方法。
Objective: To evaluate the diagnostic value of spiral CT in the diagnosis of hepatic hemangiomas. Methods: The spiral CT findings of 41 cases of hepatic hemangiomas diagnosed clinically were retrospectively analyzed. Results: Hepatic hemangiomas in the scan for the clear, uniform density of round or oval low density, part of the larger lesions can be seen in the center of the star or irregular lower density. Enhanced scan is characteristic of the edge of the artery nodules or center-like enhancement (with the same layer of abdominal aortic approximation), the progressive enhancement of central to central expansion, delayed scan lesions was filled with equal density, larger lesions are not always visible with the central area Flat sweep. Compared with the conventional CT, it can be found that the typical signs of arterial phase are not affected by respiration, and should not miss the lesion, the diagnostic accuracy rate is high. Conclusion: It is the best, most effective and definitive method to diagnose hepatic hemangiomas with spiral CT.