Evaluation of 64-slice CT in preoperative staging of rectal cancer

Objective:To evaluate the accuracy and diagnostic value of 64-slice CT in the preoperative staging of rectal cancer.Methods:Fifty-one patients with histological proven rectal cancer and undertaken preoperative 64-slice CT examination were enrolled.The characteristics of image,involving local invasion,lymph node metastasis and visceral metastasis,were analyzed and compared with the findings of pathological examination after surgery.Results:The accuracies of 64-slice CT at the T-stage,N-stage and M-stage of rectal cancer were 84.3%(43/51),84.3%(43/51),98.0%(50/51)respectively;the overall staging accuracy of 64-slice CT for all 46 patients was 74.5%(38/51).Conclusion:64-slice CT is a precise and reliable tool for preoperative staging in rectal cancer,which can provide useful information for clinicians in preoperative assessment and selecting suitable and effective operative procedure for patients.