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Construction of prediction model of intermediate risk factors for early cervical cancer based on preoperative MRI radiomics and clinical features
YI Qinqin  ZHOU Zhou  LUO Yan  ZHONG Shuyuan  LING Rennan 

Cite this article as: Yi QQ, Zhou Z, Luo Y, et al. Construction of prediction model of intermediate risk factors for early cervical cancer based on preoperative MRI radiomics and clinical features[J]. Chin J Magn Reson Imaging, 2022, 13(4): 124-127, 136. DOI:10.12015/issn.1674-8034.2022.04.024.


[Abstract] Objective To establish and validate a combined predictive model based on pretreatment dual-sequence MR (T2 weighted imaging and contrast-enhanced T1 weighted imaging) imaging features and clinical features to predict intermediate risk factors in patients with early cervical cancer (ⅠB and ⅡA) less than 4 cm.Materials and Methods A total of 170 patients eligible for inclusion with cervical cancer from our hospital between 2016 and 2021 were retrospectively collected, and were divided into intermediate-risk and non-intermediate-risk groups based on postoperative pathological results. The cases were randomly divided into training group (n=119) and validation group (n=51) according to the ratio of 7:3. Analysis Kinetics software was used to extract radiomics characteristics. Multivariate Logistic regression analysis was used to develop the clinical model, the radiomics signature (Rad-score) and the clinical-radiomics model (the combined model). Performance of the three models were assessed by using receiver operating characteristic curves, calibration curves and decision curve analysis (DCA).Results The combined pretreatment clinical-radiomics model could predict intermediate-risk cervical cancer (AUC=0.853, P<0.01). Sensitivity of the clinical-radiomics model was 85.5% and specificity was 78%. The combined model showed better performance than clinical model and no significant difference compared with radiomics model.Conclusions The intermediate risk factors in early cervical cancer (ⅠB and ⅡA) less than 4 cm can be predicted with the combined clinical-radiomics model based on dual-sequence MRI and clinical characteristics. Therefore, it could benefit individualized treatment decision-making.
[Keywords] radiomics;cervical cancer;risk factors;magnetic resonance imaging;predicting model

YI Qinqin   ZHOU Zhou   LUO Yan   ZHONG Shuyuan   LING Rennan*  

Department of Radiology, Shenzhen People's Hospital (the Second Clinical Medical College of Jinan University; the First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 508020, China

Ling RN, E-mail: 670744652@qq.com

Conflicts of interest   None.

Received  2021-12-21
Accepted  2022-03-25
DOI: 10.12015/issn.1674-8034.2022.04.024
Cite this article as: Yi QQ, Zhou Z, Luo Y, et al. Construction of prediction model of intermediate risk factors for early cervical cancer based on preoperative MRI radiomics and clinical features[J]. Chin J Magn Reson Imaging, 2022, 13(4): 124-127, 136.DOI:10.12015/issn.1674-8034.2022.04.024

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