背景:非小細胞肺癌的分期對於治療方法的選擇是非常重要的，而從隔淋巴轉移的有無則會影響分期。

方法:本研究共收集23位非小細胞肺癌患者。所有的患者都接受胸部CT與鎝-99m-tetrofosmin胸部SPECT作為術前分期之依據。縱隔淋巴轉移由術後病理切片來確定診斷，藉此比較胸部CT與鎝-99m-tetrofosmin胸部SPECT的準確率。

結果:鎝-99m- tetrofosmin胸部SPECT在診斷縱隔淋巴轉 移的準確率達91.3%，而胸部CT則為69.69忘。

結論:鎝-99m而trofosmin胸部SPECT在診斷非小細胞肺癌的縱隔淋巴轉移方面，較胸部CT準確。

Background: The staging of non-small cell lung cancer (IISCLC) to detect mediastinal lymph node (MLN) metastases is very important for determining the therapeutic strategy.

Methods: Twenty-three patients with proven IISCLC were enrolled in this study. All of the patients underwent chest computed tomography (CT) and 99mTc-tetrofosmin chest single photon emission computed tomography (SPECT) preoperative staging. MLN metastases were determined on the basis of postoperative pathologic findings to compare the diagnostic accuracy of chest CT with that of 99mTc-tetrofosmin chest SPECT.

Results: 99mTc-tetrofosmin chest SPECT showed a diagnostic accuracy rate of 91.3%in detecting MLN metastases. Chest CT had an accuracy rate of 69.6%

Conclusion: 99mTc-tetrofosmin chest SPECT was more accurate than chest CT in detecting MLII metastases in |ISCLC patients