Comparative study of transrectal ultrasonography and magnetic resonance in preoperative estimation of circumferential resection margin of mid-low rectal cancer

VernacularTitle:经直肠腔内超声和磁共振对中低位直肠癌术前环周切缘评估的比较研究
Author: Huahui LIU ; Jianyuan HUANG ; Xuanzhang HUANG ; Xigui LI ; Li MO ; Meizhi HUANG ; Yingying YANG
Publication Type:Journal Article
Keywords: Endosonography; Rectal neoplasms; Circumferential resection margin; Magnetic resonance imaging
From: Chinese Journal of Ultrasonography 2016;25(5):413-416
CountryChina
Language:Chinese
Abstract: Objective To compare the value of transrectal ultrasonography(TRUS) and magnetic resonance(MR) in preoperative estimation of circumferential resection margin (CRM) of mid-low rectal cancer.Methods Both TRUS and MR were performed prior to surgery in 111 patients with mid-low rectal cancer.The CRM was evaluated and compared with the postoperative pathologic findings.Results The accuracy of TRUS and MR for CRM was 91.9％(102/111) and 85.6％(95/111),respectively,there was no statistical difference between them (P =0.137).Their specificities were 94.0％ (79/84)and 84.5％ (71/84),there was statistical difference between them(P =0.046).The consistency of the results between TRUS and pathology was better than that between MR and pathology(Kappa1 =0.783,Kappas =0.652).Conclusions TRUS is proved to have an important diagnostic value for CRM of mid-low rectal cancer.