Application of positive lateral pelvic lymph nodes combined with T2 mapping in the pathological grade and clinical stage of rectal cancer
10.3969/j.issn.1002-1671.2025.10.018
- VernacularTitle:骨盆外侧淋巴结阳性结合T2 mapping在直肠癌病理分级及临床分期中的应用研究
- Author:
Qun YAN
1
;
Xiaomin GUI
;
Chun YANG
Author Information
1. 赣州市人民医院影像科,江西 赣州 341000
- Publication Type:Journal Article
- Keywords:
positive lateral pelvic lymph nodes;
rectal cancer;
T2 mapping;
pathological grade;
clinical stage
- From:
Journal of Practical Radiology
2025;41(10):1679-1683
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the application value of positive lateral pelvic lymph nodes combined with T2 mapping in the pathological grade and clinical stage of rectal cancer.Methods Eighty patients with rectal cancer diagnosed by pathology were selected as the study subjects.Among them,26 cases were well differentiated,21 cases were moderately differentiated,and 33 cases were poorly differentiated.According to the clinical stage,there were 17 cases of T1 stage,16 cases of T2 stage,20 cases of T3 stage and 27 cases of T4 stage.The differences in positive lateral pelvic lymph nodes and T2 value in different pathological grades and clinical stages of rectal cancer were compared.Pearson correlation analysis was used to evaluate the correlation between positive lateral pelvic lymph nodes and T2 value and pathological grade and clinical stage of rectal cancer.The receiver operating characteristic(ROC)curve was used to analyze the diagnostic efficacy of positive lateral pelvic lymph nodes and T2 value in the pathological grade of rectal cancer.Results There were significant differences in positive lateral pelvic lymph nodes and T2 value in different pathological grades and different clinical stages(P<0.05).The positive lateral pelvic lymph nodes was negatively correlated with T2 value(P<0.05).The T2 value was negatively correlated with pathological grade(P<0.05).The T2 value was also negatively correlated with clinical stage(P<0.05).The area under the curve(AUC)[95%confidence interval(CI)]of positive lateral pelvic lymph nodes combined with T2 value in the diagnosis of pathological grade and clinical stage were 0.800(0.635-0.957)and 0.779(0.583-0.981),respec-tively,demonstrated the highest diagnostic performance when used in combination.Conclusion The positive lateral pelvic lymph nodes combined with T2 mapping is helpful to evaluate the degree of differentiation and clinical stage of rectal cancer patients,which can provide valuable references for clinical treatment decisions and prognosis assessment of patients.
