Ren Gang, Cai Rong, Chen Ke-Min
Department of Diagnostic Radiology, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.
Zhonghua Zhong Liu Za Zhi. 2007 Nov;29(11):852-5.
To evaluate multidetector computed tomography (MDCT) as a pre-operative staging tool for detecting lymph node metastasis in patients with early gastric cancer (EGC).
In 77 consecutive patients with EGC, lymph node metastasis was assessed pre-operatively with MDCT at a slice thickness of 2.5 - 5.0 mm (n=24) or 7.5 - 10.0 mm (n =53).
Overall accuracy of detecting NO to N3 lymph node was 74.0% for MDCT and 54.5% for operative assessment. The sensitivity, specificity, positive predictive value and negative predictive value in detecting lymph node metastasis was 75. 0%, 65.0%, 30.0% and 92.9% with 2.5 - 5.0 mm MDCT image, which was 62.5%, 82.2%, 38.5% and 92.5% by 7.5 - 10.0 mm MDCT image, whereas it was only 45.5%, 63.6%, 17.2% and 87.2% by operative assessment.
Pre-operative assessment by multidetector CT may have a high accuracy in detecting lymph node metastasis for patients with early gastric cancer.
评估多排螺旋计算机断层扫描（MDCT）作为早期胃癌（EGC）患者术前检测淋巴结转移的分期工具。
连续纳入77例EGC患者，术前采用层厚为2.5 - 5.0 mm（n = 24）或7.5 - 10.0 mm（n = 53）的MDCT评估淋巴结转移情况。
MDCT检测NO至N3淋巴结的总体准确率为74.0%，手术评估为54.5%。2.5 - 5.0 mm MDCT图像检测淋巴结转移的敏感性、特异性、阳性预测值和阴性预测值分别为75.0%、65.0%、30.0%和92.9%，7.5 - 10.0 mm MDCT图像分别为62.5%、82.2%、38.5%和92.5%，而手术评估分别仅为45.5%、63.6%、17.2%和87.2%。
多排螺旋CT术前评估对早期胃癌患者检测淋巴结转移可能具有较高的准确性。
