【摘要】 目的 评价全身磁共振扩散加权背景抑制成像(magnetic resonance diffusion-weighted imaging with background body signal suppression,MR-DWIBS)在肺癌诊断及分期中的价值。方法 21例肺癌行全身MR-DWIBS检查,其中6例为术后患者。原发灶皆经病理组织学确诊,转移瘤的诊断综合多种影像学检查及临床随访而定。对每1例的MR-DWIBS、常规MR和CT图像行帧对帧对比分析。结果 15例未行原发灶切除的肺癌MR-DWIBS及CT均100%显示原发灶,前者显示高信号原发灶与后者所见占位性病变位置及形态基本一致。MR-DWIBS可检出绝大部分远处转移灶,但对肺内小的转移灶、脑转移及成骨性转移显示不佳,需结合常规MR或CT诊断。结论 MR-DWIBS对肺癌的诊断及分期具有一定的临床价值,值得推广。更多还原

【Abstract】 Objective To evaluate the clinical value of whole-body magnetic resonance diffusion weighted imaging with background body signal suppression(MR-DWIBS) in diagnosis and staging of lung cancer.Methods 21 patients with lung cancer underwent whole body MR-DWIBS examinations,of which 6 patients underwent resection of lung cancers before.The primary lesions were all proved by pathology and the metastatic lesions were diagnosed by multiple imaging modalities combined with clinical follow-up.MR-DWIBS,conventional MR and CT images of the same patient were analyzed frame by frame.Results The sensitivity of MR-DWIBS and CT in 15 cases without operation reached 100%.The positions of high signal lesions on MR-DWIBS were all concordant to CT.MR-DWIBS could disclose most of distant metastases,but those in lung and brain and osteogenestic lesions were displayed poorly,the diagnosis needed in combination with conventional MR and CT images.Conclusion MR-DWIBS is of important clinical value in diagnosis and staging of lung cancer.更多还原