Diffusion-based Radiotherapy Dose Prediction Guided by Inter-slice Aware Structure Encoding
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866911949170671616 |
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| author | Feng, Zhenghao Wen, Lu Xiao, Jianghong Xu, Yuanyuan Wu, Xi Zhou, Jiliu Peng, Xingchen Wang, Yan |
| author_facet | Feng, Zhenghao Wen, Lu Xiao, Jianghong Xu, Yuanyuan Wu, Xi Zhou, Jiliu Peng, Xingchen Wang, Yan |
| contents | Deep learning (DL) has successfully automated dose distribution prediction in radiotherapy planning, enhancing both efficiency and quality. However, existing methods suffer from the over-smoothing problem for their commonly used L1 or L2 loss with posterior average calculations. To alleviate this limitation, we propose a diffusion model-based method (DiffDose) for predicting the radiotherapy dose distribution of cancer patients. Specifically, the DiffDose model contains a forward process and a reverse process. In the forward process, DiffDose transforms dose distribution maps into pure Gaussian noise by gradually adding small noise and a noise predictor is simultaneously trained to estimate the noise added at each timestep. In the reverse process, it removes the noise from the pure Gaussian noise in multiple steps with the well-trained noise predictor and finally outputs the predicted dose distribution maps... |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_02991 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Diffusion-based Radiotherapy Dose Prediction Guided by Inter-slice Aware Structure Encoding Feng, Zhenghao Wen, Lu Xiao, Jianghong Xu, Yuanyuan Wu, Xi Zhou, Jiliu Peng, Xingchen Wang, Yan Computer Vision and Pattern Recognition Deep learning (DL) has successfully automated dose distribution prediction in radiotherapy planning, enhancing both efficiency and quality. However, existing methods suffer from the over-smoothing problem for their commonly used L1 or L2 loss with posterior average calculations. To alleviate this limitation, we propose a diffusion model-based method (DiffDose) for predicting the radiotherapy dose distribution of cancer patients. Specifically, the DiffDose model contains a forward process and a reverse process. In the forward process, DiffDose transforms dose distribution maps into pure Gaussian noise by gradually adding small noise and a noise predictor is simultaneously trained to estimate the noise added at each timestep. In the reverse process, it removes the noise from the pure Gaussian noise in multiple steps with the well-trained noise predictor and finally outputs the predicted dose distribution maps... |
| title | Diffusion-based Radiotherapy Dose Prediction Guided by Inter-slice Aware Structure Encoding |
| topic | Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2311.02991 |