Application of contrast-enhanced CT radiomics in prediction of early recurrence of locally advanced oesophageal squamous cell carcinoma after trimodal therapy

被引:29
作者
Tang, Sun [1 ]
Ou, Jing [1 ]
Liu, Jun [2 ]
Wu, Yu-ping [1 ]
Wu, Chang-qiang [2 ]
Chen, Tian-wu [1 ]
Zhang, Xiao-ming [1 ]
Li, Rui [1 ]
Tang, Meng-jie [1 ]
Yang, Li-qin [1 ]
Tan, Bang-guo [1 ]
Lu, Fu-lin [1 ]
Hu, Jiani [3 ]
机构
[1] North Sichuan Med Coll, Affiliated Hosp, Sichuan Key Lab Med Imaging, Dept Radiol, 63 Wenhua Rd, Nanchong 637000, Sichuan, Peoples R China
[2] North Sichuan Med Coll, Sichuan Key Lab Med Imaging, Nanchong, Sichuan, Peoples R China
[3] Wayne State Univ, Dept Radiol, Detroit, MI USA
基金
中国国家自然科学基金;
关键词
Esophageal neoplasms; Carcinoma Squamous Cell; Tomography X-ray computed; Recurrence; Therapeutics; PREOPERATIVE CHEMORADIOTHERAPY; NEOADJUVANT CHEMORADIOTHERAPY; ESOPHAGOGASTRIC JUNCTION; PROGNOSTIC-FACTORS; CANCER; FEATURES; HETEROGENEITY; CHEMOTHERAPY; CISPLATIN; SURGERY;
D O I
10.1186/s40644-021-00407-5
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background: Early recurrence of oesophageal squamous cell carcinoma (SCC) is defined as recurrence after surgery within 1 year, and appears as local recurrence, distant recurrence, and lymph node positive and disseminated recurrence. Contrast-enhanced computed tomography (CECT) is recommended for diagnosis of primary tumor and initial staging of oesophageal SCC, but it cannot be used to predict early recurrence. It is reported that radiomics can help predict preoperative stages of oesophageal SCC, lymph node metastasis before operation, and 3-year overall survival of oesophageal SCC patients following chemoradiotherapy by extracting high-throughput quantitative features from CT images. This study aimed to develop models based on CT radiomics and clinical features of oesophageal SCC to predict early recurrence of locally advanced cancer. Methods: We collected electronic medical records and image data of 197 patients with confirmed locally advanced oesophageal SCC. These patients were randomly allocated to 137 patients in the training cohort and 60 in the test cohort. 352 radiomics features were extracted by delineating region-of-interest (ROI) around the lesion on CECT images and clinical signature was generated by medical records. The radiomics model, clinical model, the combined model of radiomics and clinical features were developed by radiomics features and/or clinical characteristics. Predicting performance of the three models was assessed with area under receiver operating characteristic curve (AUC), accuracy and F-1 score. Results: Eleven radiomics features and/or six clinical signatures were selected to build prediction models related to recurrence of locally advanced oesophageal SCC after trimodal therapy. The AUC of integration of radiomics and clinical models was better than that of radiomics or clinical model for the training cohort (0.821 versus 0.754 or 0.679, respectively) and for the validation cohort (0.809 versus 0.646 or 0.658, respectively). Integrated model of radiomics and clinical features showed good performance in predicting early recurrence of locally advanced oesophageal SCC for both the training and validation cohorts (accuracy = 0.730 and 0.733, and F-1score = 0.730 and 0.778, respectively). Conclusions: The integrated model of CECT radiomics and clinical features may be a potential imaging biomarker to predict early recurrence of locally advanced oesophageal SCC after trimodal therapy.
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页数:10
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