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目的评价螺旋CT血管造影诊断肺隔离症的价值。方法对6例经手术和病理证实、影像资料完整的肺隔离症病例进行回顾性分析。全部病例使用多层螺旋CT胸部平扫、增强扫描及病灶多平面重建(MPR)、曲面重建(CPR)、最大密度投影(MIP)。结果6例中,病变位于左下肺后基底段4例,右下肺后基底段2例。呈囊性病灶1例,实性病灶3例,囊实性病灶1例,多结节融合肿块影1例。增强CT扫描及多种重建后处理图像可显示病灶强化特点、异常供血动脉、引流静脉及其与病变结构的关系。结论螺旋CT三维重建血管成像能很好地显示肺隔离症的病变特征。
Objective To evaluate the value of spiral CT angiography in the diagnosis of pulmonary sequestration. Methods Six cases of pulmonary sequestration confirmed by operation and pathology and complete imaging data were retrospectively analyzed. All patients underwent multislice CT scan, MPR, CPR, and MIP. Results In the 6 cases, the lesion was located in the left lower posterior basement in 4 cases and in the right lower posterior lung in 2 cases. 1 case of cystic lesions, 3 cases of solid lesions, 1 case of cystic solid lesions, and 1 case of multi-nodule fusion mass. Enhanced CT scan and a variety of post-processing reconstruction images may show enhanced features of the lesion, abnormal feeding arteries, drainage veins and their relationship with the lesion structure. Conclusion Three-dimensional reconstruction of spiral CT angiography can well display the pathological features of pulmonary sequestration.