数字化X线断层融合检查诊断肺部占位病变

Detection of Pulmonary Lesions with Chest Digital Tomosynthesis

目的探讨胸部数字化X线断层融合检查(DTS)对肺部占位病变的检出能力。资料与方法对57例有肺部占位病变的患者进行胸部DTS和数字化X线摄影(DR)检查,以多层螺旋CT结果为参照,分析胸部DTS和DR检查对肺部占位病变的敏感性,同时评估DTS对肺部占位病变特征的检出能力。结果 57例患者中,CT确认肺部占位性病灶83个,DR和DTS分别检出其中48个和79个病灶,敏感性分别为57.8%和95.2%。胸部DTS对肺内占位病变的边缘结构和内部特征显示优于DR。结论 DTS对肺部占位病变的检出能力接近CT,敏感性高于DR,可作为肺内占位病变高危人群筛检和随访的常规手段。

Purpose To evaluate the detection of pulmonary space-occupying lesion using chest digital tomosynthesis （DTS）. Materials and Methods Filly-seven patients with pulmonary space-occupying lesion underwent chest digital radiography （DR）. DTS and multidetector CT （MSCT） scan. The detection ability of MSCT served as standard for reference. The sensitivities of chest DR and DTS tbr detection in pulmonary space- occupying lesion were calculated. Results A total of 83 pulmonary space-occupying lesions were found in 57 patients, including 48 found with DR and 79 found with DTS. The sensitivity for detecting pulmonary space-occupying lesions with DR and DTS were 57.8% and 95.2%, respectively. Chest DTS was superior to DR in manifesting marginal structures and internal characteristics of pulmonary space-occupying lesions. Conclusion Chest DTS is useful in detecting pulmonary space-occupying lesion, and it is the most feasible conventional techniques to detect and follow-up pulnlonary space-occupying lesion.