Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Study on the Application of Artificial Intelligence Model for CT Quality Control

CT 정도관리를 위한 인공지능 모델 적용에 관한 연구

  • Ho Seong Hwang (Department of Medical Artificial Intelligent, Graduate School, Eulji University) ;
  • Dong Hyun Kim (Machine Intelligence Convergence System, Eulji University) ;
  • Ho Chul Kim (Department of Medical Artificial Intelligent, Graduate School, Eulji University)
  • 황호성 (을지대학교 일반대학원 의료인공지능학과) ;
  • 김동현 (을지대학교 인공지능융합시스템연구실) ;
  • 김호철 (을지대학교 일반대학원 의료인공지능학과)
  • Received : 2023.05.27
  • Accepted : 2023.06.12
  • Published : 2023.06.30
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Abstract

CT is a medical device that acquires medical images based on Attenuation coefficient of human organs related to X-rays. In addition, using this theory, it can acquire sagittal and coronal planes and 3D images of the human body. Then, CT is essential device for universal diagnostic test. But Exposure of CT scan is so high that it is regulated and managed with special medical equipment. As the special medical equipment, CT must implement quality control. In detail of quality control, Spatial resolution of existing phantom imaging tests, Contrast resolution and clinical image evaluation are qualitative tests. These tests are not objective, so the reliability of the CT undermine trust. Therefore, by applying an artificial intelligence classification model, we wanted to confirm the possibility of quantitative evaluation of the qualitative evaluation part of the phantom test. We used intelligence classification models (VGG19, DenseNet201, EfficientNet B2, inception_resnet_v2, ResNet50V2, and Xception). And the fine-tuning process used for learning was additionally performed. As a result, in all classification models, the accuracy of spatial resolution was 0.9562 or higher, the precision was 0.9535, the recall was 1, the loss value was 0.1774, and the learning time was from a maximum of 14 minutes to a minimum of 8 minutes and 10 seconds. Through the experimental results, it was concluded that the artificial intelligence model can be applied to CT implements quality control in spatial resolution and contrast resolution.

Keywords

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