Nghiên cứu chẩn đoán giai đoạn trước phẩu thuật của ung thư dạ dày trên chụp CLVT đa dãy

Preoperative starging of gastric cancer by multiple detector computed tomography

SUMMARY

Objective: The aim of this study was to evaluate the accuracy of multiple detector computed tomography (MDCT - BRIVO CT 385-GE Japan) in the preoperative staging of gastric cancer, prospectively comparing CT findings with pathological findings confirmed at biopsy during upper endoscopyand at surgery. A total of 74 consecutive patients with primary cancer recruited between December2015 to July 2016 were submitted to preoperative MDCT staging according to a standard protocol. All diagnostic procedures were performed by two dedicated radiologists who were unaware of the final pathological results. All patients were diagnosed with primary gastric cancer, confirmed at biopsy during upper endoscopy. CT results for T and N staging were in agreement with pathological findings,with overall accuracy of 83,8% (62/74) and 81,1% (60/74%, respectively. Higher specificity for T and N earlier stages (both 100%). Higher accuracy and sensibility for all T and N stages (78,9-94,6% for T and 80,9-96,6% for N). Our findings show a good performance of the diagnostic staging TNM performed with MDCT.

Keywords: Gastric Cancer, MDCT, Staging, Oncologic Imaging.