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KMID : 0357520230460060535
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Journal of Radiological Science and Technology
2023 Volume.46 No. 6 p.535 ~ p.542
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A Study on the Application of Deep Learning Model by Using ACR Phantom in CT Quality Control
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Choi Eun-Been
Kim Si-On
Choi Seung-Won
Kim Jae-Hee
Kim Young-Kyun
Han Dong-Kyun
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Abstract
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This study aimed to implement a deep learning model that can perform quantitative quality control through ACTS software used for quantitative evaluation of ACR phantom in CT quality control and evaluate its usefulness. By changing the scanning conditions, images of three modules of the ACR phantom's slice thickness (ST), low contrast resolution (LC), and high contrast resolution (HC) were obtained and classified as ACTS software. The deep learning model used ResNet18, implementing three models in which ST, HC, and LC were learned with epoch 50 and an integrated model in which three modules were learned with Epoch 10, 30, and 50 at once. The performance of each model was evaluated through Accuracy and Loss. When comparing and evaluating the accuracy and loss function values of the deep learning models by ST, LC, and HC modules, the Accuracy and Loss of the HC model were the best with 100% and 0.0081, and in the integrated model according to the Epoch value, Accuracy and Loss with epoch 50 were the best with 96.29% and 0.1856. This paper showed that quantitative quality control is possible through a deep learning model, and it can be used as a basis and evidence for applying deep learning to the CT quality control.
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KEYWORD
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Deep learning, ResNet18, Computed tomography, ACR phantom, Quality control
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