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  • Title: [Value of dynamic subtraction technique of magnetic resonance imaging in preoperative TNM-staging assessment of gastric carcinoma].
    Author: Wu JG, Fang GE, Luo TH, Zhang F.
    Journal: Zhonghua Wei Chang Wai Ke Za Zhi; 2008 Nov; 11(6):533-6. PubMed ID: 19031128.
    Abstract:
    OBJECTIVE: To explore the value of dynamic subtraction technique of magnetic resonance imaging MRI in preoperative TNM-staging assessment of gastric carcinoma. METHODS: MRI was performed in 39 patients with gastric carcinoma diagnosed by postoperative pathology.The results of MRI were prospectively analyzed by one professor and compared with the corresponding pathological findings. RESULTS: In comparison with pathological results, the accuracy of MRI for T stage was 82.1%, for N stage was 71.8%, and for M stage was 84.6% respectively. The accuracy of MRI for TNM stage was 71.8%, which revealed concordance between the preoperative TNM-staging and postoperative pathological findings (Kappa= 0.671-0.763, P<0.05). CONCLUSION: MRI plays an important role in the assessment of invasion depth of gastric carcinoma, lymph node and distant organ metastases,which has unique priority in preoperative TNM-staging assessment of gastric carcinoma.
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