| Objective To investigate the diagnostic value of high-resolution magnetic resonance imaging(MRI) in the TN staging of rectal cancer and extramural vascular invasion. Methods A retrospective analysis was conducted on the clinical data of 74 patients with rectal cancer admitted to Fuyang City People's Hospital from January 2020 to December 2020. All patients underwent high-resolution MRI examination. Using pathological diagnosis of rectal cancer TN staging and extramural vascular invasion as the gold standard, the differences between high-resolution MRI diagnosis of rectal cancer T staging, N staging, and extramural vascular invasion and pathological diagnosis were compared. Kappa consistency test was used to analyze the consistency between high-resolution MRI and pathological detection in the diagnosis of rectal cancer TN staging and extramural vascular invasion. Results The accuracy of high-resolution MRI in diagnosing rectal cancer T staging, N staging, and extramural vascular invasion was lower than that of pathological diagnosis, and the differences were statistically significant(P<0.05). The Kappa valuefor the consistency of high-resolution MRI in diagnosing T2, T3, and T4 stages of rectal cancer was 0.612, 0.516, and 0.750, respectively. The Kappa value for the consistency of diagnosing N0, N1, and N2 stages of rectal cancer was 0.437, 0.544, and 0.448, respectively. The Kappa value for detecting extramural vascular invasion was 0.634. Conclusion High-resolution MRI for diagnosing rectal cancer TN staging and extramural vascular invasion demonstrates acceptable diagnostic efficacy, with moderate consistency compared to pathological diagnosis. |
