Study of endoscopic ultrasonography in the diagnosis and endoscopic therapy of colorectal cancer
YU Zhi-jin
PENG Xiao-feng
CHEN Hui-xin
Abstract：Objective To evaluate the value of endoscopic ultrasonography(EUS) in the diagnosis and en-doscopic therapy of colorectal cancer.Methods A total of 23 cases were treated by different endoscopic theraputic techniques according to the results of EUS.The specimens were routinely diagnosed by pathology.The sensitivity, specificity, positive predictive value of EUS were evaluated according to pathological diagnosis as the gold standard. Results The total accuracy of T-staging by EUS on colorectal cancer was 80.6%, among them, the accuracy of T1-staging by EUS on colorectal cancer was 100.0%, accuracy of T2-staging by EUS on colorectal cancer was 68.8%, and accuracy of T3-staging by EUS on colorectal cancer was 90.0%, respectively.The accuracy of N-staging by EUS on colorectal cancer was 77.4%.The sensitivity and specificity of N-staging by EUS on colorectal cancer were 58.3%and 89.5%, respectively.The positive predictive value, negative predictive value and Youden index of N-staging by EUS on colorectal cancer were 77.8%, 77.3%, and 0.478, respectively.Conclusion These results sug-gest that EUS have higher accuracy judgment on staging of colorectal cancer T1, T3, and N-staging by EUS checks provide guidance for selection of the treatment of colorectal cancer.
Keywords：Colorectal cancerDiagnosisEndoscopic ultrasonography
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 408-410 )