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Article

Evaluation of the accuracy of heart dose prediction by machine learning for selecting patients not requiring deep inspiration breath‑hold radiotherapy after breast cancer surgery

  • Authors:
    • Ryo Kamizaki
    • Masahiro Kuroda
    • Wlla E. Al‑Hammad
    • Nouha Tekiki
    • Hinata Ishizaka
    • Kazuhiro Kuroda
    • Kohei Sugimoto
    • Masataka Oita
    • Yoshinori Tanabe
    • Majd Barham
    • Irfan Sugianto
    • Yuki Nakamitsu
    • Masaki Hirano
    • Yuki Muto
    • Hiroki Ihara
    • Soichi Sugiyama
  • View Affiliations / Copyright

    Affiliations: Department of Radiological Technology, Graduate School of Health Sciences, Okayama University, Okayama 700‑8558, Japan, Department of Oral and Maxillofacial Radiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700‑8558, Japan, Graduate School of Interdisciplinary Sciences and Engineering in Health Systems, Okayama University, Okayama 770‑8558, Japan, Department of Dentistry and Dental Surgery, College of Medicine and Health Sciences, An‑Najah National University, Nablus 44839, Palestine, Department of Oral Radiology, Faculty of Dentistry, Hasanuddin University, Sulawesi 90245, Indonesia, Department of Radiology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700‑8558, Japan, Department of Proton Beam Therapy, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700‑8558, Japan
  • Article Number: 536
    |
    Published online on: October 2, 2023
       https://doi.org/10.3892/etm.2023.12235
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Abstract

Increased heart dose during postoperative radiotherapy (RT) for left‑sided breast cancer (BC) can cause cardiac injury, which can decrease patient survival. The deep inspiration breath‑hold technique (DIBH) is becoming increasingly common for reducing the mean heart dose (MHD) in patients with left‑sided BC. However, treatment planning and DIBH for RT are laborious, time‑consuming and costly for patients and RT staff. In addition, the proportion of patients with left BC with low MHD is considerably higher among Asian women, mainly due to their smaller breast volume compared with that in Western countries. The present study aimed to determine the optimal machine learning (ML) model for predicting the MHD after RT to pre‑select patients with low MHD who will not require DIBH prior to RT planning. In total, 562 patients with BC who received postoperative RT were randomly divided into the trainval (n=449) and external (n=113) test datasets for ML using Python (version 3.8). Imbalanced data were corrected using synthetic minority oversampling with Gaussian noise. Specifically, right‑left, tumor site, chest wall thickness, irradiation method, body mass index and separation were the six explanatory variables used for ML, with four supervised ML algorithms used. Using the optimal value of hyperparameter tuning with root mean squared error (RMSE) as an indicator for the internal test data, the model yielding the best F2 score evaluation was selected for final validation using the external test data. The predictive ability of MHD for true MHD after RT was the highest among all algorithms for the deep neural network, with a RMSE of 77.4, F2 score of 0.80 and area under the curve‑receiver operating characteristic of 0.88, for a cut‑off value of 300 cGy. The present study suggested that ML can be used to pre‑select female Asian patients with low MHD who do not require DIBH for the postoperative RT of BC.
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Copy and paste a formatted citation
Spandidos Publications style
Kamizaki R, Kuroda M, Al‑Hammad WE, Tekiki N, Ishizaka H, Kuroda K, Sugimoto K, Oita M, Tanabe Y, Barham M, Barham M, et al: Evaluation of the accuracy of heart dose prediction by machine learning for selecting patients not requiring deep inspiration breath‑hold radiotherapy after breast cancer surgery. Exp Ther Med 26: 536, 2023.
APA
Kamizaki, R., Kuroda, M., Al‑Hammad, W.E., Tekiki, N., Ishizaka, H., Kuroda, K. ... Sugiyama, S. (2023). Evaluation of the accuracy of heart dose prediction by machine learning for selecting patients not requiring deep inspiration breath‑hold radiotherapy after breast cancer surgery. Experimental and Therapeutic Medicine, 26, 536. https://doi.org/10.3892/etm.2023.12235
MLA
Kamizaki, R., Kuroda, M., Al‑Hammad, W. E., Tekiki, N., Ishizaka, H., Kuroda, K., Sugimoto, K., Oita, M., Tanabe, Y., Barham, M., Sugianto, I., Nakamitsu, Y., Hirano, M., Muto, Y., Ihara, H., Sugiyama, S."Evaluation of the accuracy of heart dose prediction by machine learning for selecting patients not requiring deep inspiration breath‑hold radiotherapy after breast cancer surgery". Experimental and Therapeutic Medicine 26.5 (2023): 536.
Chicago
Kamizaki, R., Kuroda, M., Al‑Hammad, W. E., Tekiki, N., Ishizaka, H., Kuroda, K., Sugimoto, K., Oita, M., Tanabe, Y., Barham, M., Sugianto, I., Nakamitsu, Y., Hirano, M., Muto, Y., Ihara, H., Sugiyama, S."Evaluation of the accuracy of heart dose prediction by machine learning for selecting patients not requiring deep inspiration breath‑hold radiotherapy after breast cancer surgery". Experimental and Therapeutic Medicine 26, no. 5 (2023): 536. https://doi.org/10.3892/etm.2023.12235
Copy and paste a formatted citation
x
Spandidos Publications style
Kamizaki R, Kuroda M, Al‑Hammad WE, Tekiki N, Ishizaka H, Kuroda K, Sugimoto K, Oita M, Tanabe Y, Barham M, Barham M, et al: Evaluation of the accuracy of heart dose prediction by machine learning for selecting patients not requiring deep inspiration breath‑hold radiotherapy after breast cancer surgery. Exp Ther Med 26: 536, 2023.
APA
Kamizaki, R., Kuroda, M., Al‑Hammad, W.E., Tekiki, N., Ishizaka, H., Kuroda, K. ... Sugiyama, S. (2023). Evaluation of the accuracy of heart dose prediction by machine learning for selecting patients not requiring deep inspiration breath‑hold radiotherapy after breast cancer surgery. Experimental and Therapeutic Medicine, 26, 536. https://doi.org/10.3892/etm.2023.12235
MLA
Kamizaki, R., Kuroda, M., Al‑Hammad, W. E., Tekiki, N., Ishizaka, H., Kuroda, K., Sugimoto, K., Oita, M., Tanabe, Y., Barham, M., Sugianto, I., Nakamitsu, Y., Hirano, M., Muto, Y., Ihara, H., Sugiyama, S."Evaluation of the accuracy of heart dose prediction by machine learning for selecting patients not requiring deep inspiration breath‑hold radiotherapy after breast cancer surgery". Experimental and Therapeutic Medicine 26.5 (2023): 536.
Chicago
Kamizaki, R., Kuroda, M., Al‑Hammad, W. E., Tekiki, N., Ishizaka, H., Kuroda, K., Sugimoto, K., Oita, M., Tanabe, Y., Barham, M., Sugianto, I., Nakamitsu, Y., Hirano, M., Muto, Y., Ihara, H., Sugiyama, S."Evaluation of the accuracy of heart dose prediction by machine learning for selecting patients not requiring deep inspiration breath‑hold radiotherapy after breast cancer surgery". Experimental and Therapeutic Medicine 26, no. 5 (2023): 536. https://doi.org/10.3892/etm.2023.12235
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