CT-Based Radiomics Score Can Accurately Predict Esophageal Variceal Rebleeding in Cirrhotic Patients
Purpose: This study aimed to develop a radiomics score (Rad-score) extracted from liver and spleen CT images in cirrhotic patients to predict the probability of esophageal variceal rebleeding.Methods: In total, 173 cirrhotic patients were enrolled in this retrospective study. A total of 2,264 radiom...
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Frontiers Media S.A.
2021
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oai:doaj.org-article:7204b16fcf83424a98f04bd10f9d9c832021-11-04T06:14:06ZCT-Based Radiomics Score Can Accurately Predict Esophageal Variceal Rebleeding in Cirrhotic Patients2296-858X10.3389/fmed.2021.745931https://doaj.org/article/7204b16fcf83424a98f04bd10f9d9c832021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmed.2021.745931/fullhttps://doaj.org/toc/2296-858XPurpose: This study aimed to develop a radiomics score (Rad-score) extracted from liver and spleen CT images in cirrhotic patients to predict the probability of esophageal variceal rebleeding.Methods: In total, 173 cirrhotic patients were enrolled in this retrospective study. A total of 2,264 radiomics features of the liver and spleen were extracted from CT images. Least absolute shrinkage and selection operator (LASSO) Cox regression was used to select features and generate the Rad-score. Then, the Rad-score was evaluated by the concordance index (C-index), calibration curves, and decision curve analysis (DCA). Kaplan–Meier analysis was used to assess the risk stratification ability of the Rad-score.Results: Rad-scoreLiver, Rad-scoreSpleen, and Rad-scoreLiver−Spleen were independent risk factors for EV rebleeding. The Rad-scoreLiver−Spleen, which consisted of ten features, showed good discriminative performance, with C-indexes of 0.853 [95% confidence interval (CI), 0.776–0.904] and 0.822 (95% CI, 0.749–0.875) in the training and validation cohorts, respectively. The calibration curve showed that the predicted probability of rebleeding was very close to the actual probability. DCA verified the usefulness of the Rad-scoreLiver−Spleen in clinical practice. The Rad-scoreLiver−Spleen showed good performance in stratifying patients into high-, intermediate- and low-risk groups in both the training and validation cohorts. The C-index of the Rad-scoreLiver−Spleen in the hepatitis B virus (HBV) cohort was higher than that in the non-HBV cohort.Conclusion: The radiomics score extracted from liver and spleen CT images can predict the risk of esophageal variceal rebleeding and stratify cirrhotic patients accordingly.Dongxiao MengDongxiao MengYingnan WeiXiao FengBing KangBing KangXiming WangXiming WangJianni QiXinya ZhaoXinya ZhaoQiang ZhuQiang ZhuFrontiers Media S.A.articleportal hypertensionnon-invasivecomputed tomographyradiomicsesophageal variceal rebleedingMedicine (General)R5-920ENFrontiers in Medicine, Vol 8 (2021) |
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portal hypertension non-invasive computed tomography radiomics esophageal variceal rebleeding Medicine (General) R5-920 |
| spellingShingle |
portal hypertension non-invasive computed tomography radiomics esophageal variceal rebleeding Medicine (General) R5-920 Dongxiao Meng Dongxiao Meng Yingnan Wei Xiao Feng Bing Kang Bing Kang Ximing Wang Ximing Wang Jianni Qi Xinya Zhao Xinya Zhao Qiang Zhu Qiang Zhu CT-Based Radiomics Score Can Accurately Predict Esophageal Variceal Rebleeding in Cirrhotic Patients |
| description |
Purpose: This study aimed to develop a radiomics score (Rad-score) extracted from liver and spleen CT images in cirrhotic patients to predict the probability of esophageal variceal rebleeding.Methods: In total, 173 cirrhotic patients were enrolled in this retrospective study. A total of 2,264 radiomics features of the liver and spleen were extracted from CT images. Least absolute shrinkage and selection operator (LASSO) Cox regression was used to select features and generate the Rad-score. Then, the Rad-score was evaluated by the concordance index (C-index), calibration curves, and decision curve analysis (DCA). Kaplan–Meier analysis was used to assess the risk stratification ability of the Rad-score.Results: Rad-scoreLiver, Rad-scoreSpleen, and Rad-scoreLiver−Spleen were independent risk factors for EV rebleeding. The Rad-scoreLiver−Spleen, which consisted of ten features, showed good discriminative performance, with C-indexes of 0.853 [95% confidence interval (CI), 0.776–0.904] and 0.822 (95% CI, 0.749–0.875) in the training and validation cohorts, respectively. The calibration curve showed that the predicted probability of rebleeding was very close to the actual probability. DCA verified the usefulness of the Rad-scoreLiver−Spleen in clinical practice. The Rad-scoreLiver−Spleen showed good performance in stratifying patients into high-, intermediate- and low-risk groups in both the training and validation cohorts. The C-index of the Rad-scoreLiver−Spleen in the hepatitis B virus (HBV) cohort was higher than that in the non-HBV cohort.Conclusion: The radiomics score extracted from liver and spleen CT images can predict the risk of esophageal variceal rebleeding and stratify cirrhotic patients accordingly. |
| format |
article |
| author |
Dongxiao Meng Dongxiao Meng Yingnan Wei Xiao Feng Bing Kang Bing Kang Ximing Wang Ximing Wang Jianni Qi Xinya Zhao Xinya Zhao Qiang Zhu Qiang Zhu |
| author_facet |
Dongxiao Meng Dongxiao Meng Yingnan Wei Xiao Feng Bing Kang Bing Kang Ximing Wang Ximing Wang Jianni Qi Xinya Zhao Xinya Zhao Qiang Zhu Qiang Zhu |
| author_sort |
Dongxiao Meng |
| title |
CT-Based Radiomics Score Can Accurately Predict Esophageal Variceal Rebleeding in Cirrhotic Patients |
| title_short |
CT-Based Radiomics Score Can Accurately Predict Esophageal Variceal Rebleeding in Cirrhotic Patients |
| title_full |
CT-Based Radiomics Score Can Accurately Predict Esophageal Variceal Rebleeding in Cirrhotic Patients |
| title_fullStr |
CT-Based Radiomics Score Can Accurately Predict Esophageal Variceal Rebleeding in Cirrhotic Patients |
| title_full_unstemmed |
CT-Based Radiomics Score Can Accurately Predict Esophageal Variceal Rebleeding in Cirrhotic Patients |
| title_sort |
ct-based radiomics score can accurately predict esophageal variceal rebleeding in cirrhotic patients |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/7204b16fcf83424a98f04bd10f9d9c83 |
| work_keys_str_mv |
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