2編の多数の論文を集めたMRI(DWI)の解析では、MRI(DWI)が肺の良悪性病変の鑑別に有用と報告されています(図7)。Li B, et al. A systematic review and meta-analysis of the accuracy of diffusion-weighted MRI in the detection of malignant pulmonary nodules and masses. Acad Radiol 2014; 21: 21-9.
Shen G, et al. Apparent diffusion coefficient values of diffusion-weighted imaging for distinguishing focal pulmonary lesions and characterizing the subtype of lung cancer: a meta-analysis. Eur Radiol 2016; 26: 556-66.
また、MRIとPET-CTとの診断能を比較した2論文では、MRI(DWI)の診断能はPET-CTと同等ないしそれ以上と報告されています。(図8)に著者らのデータを示しています。Usuda K, et al. Diagnostic performance of diffusion weighted imaging of malignant and benign pulmonary nodules and masses: comparison with positron emission tomography. Asian Pac J Cancer Prev. 15 (11):4629-4635, 2014 (図8)
Mori T, et al. Diffusion-weighted magnetic resonance imaging for diagnosing malignant pulmonary nodules/masses: comparison with positron emission tomography. J Thorac Oncol 2008; 3: 358-64.