Abstract #0045

Ohno Y, Nogami M, Koyama H, Takenaka D, Sugimura K, Fujii M, Hatabu H

To compare diagnostic capabilities of N-stage in non-small cell lung cancer (NSCLC) patients between STIR turbo SE imaging (STIR MRI) and FDG-PET/CT, 115 consecutive patients were analyzed. Feasible threshold value of each method was determined on per node basis, and tested on per patient basis. When feasible threshold values were adapted, sensitivity and accuracy of quantitatively assessed STIR MRI were significantly higher than those of quantitatively and qualitatively assessed PET/CT. Sensitivity of qualitatively assessed STIR MRI was also significantly higher than that of qualitatively assessed PET/CT. In conclusion, STIR MRI is useful for diagnosis of N-stage in NSCLC patients.