[Evaluation of Radiograph Accuracy in Skull X-ray Images Using Deep Learning].
Nihon Hoshasen Gijutsu Gakkai Zasshi
; 78(1): 23-32, 2022.
Article
in Ja
| MEDLINE
| ID: mdl-35046219
ABSTRACT
PURPOSE:
Accurate positioning is essential for radiography, and it is especially important to maintain image reproducibility in follow-up observations. The decision on re-taking radiographs is entrusting to the individual radiological technologist. The evaluation is a visual and qualitative evaluation and there are individual variations in the acceptance criteria. In this study, we propose a method of image evaluation using a deep convolutional neural network (DCNN) for skull X-ray images.METHOD:
The radiographs were obtained from 5 skull phantoms and were classified by simple network and VGG16. The discrimination ability of DCNN was verified by recognizing the X-ray projection angle and the retake of the radiograph. DCNN architectures were used with the different input image sizes and were evaluated by 5-fold cross-validation and leave-one-out cross-validation.RESULT:
Using the 5-fold cross-validation, the classification accuracy was 99.75% for the simple network and 80.00% for the VGG16 in small input image sizes, and when the input image size was general image size, simple network and VGG16 showed 79.58% and 80.00%, respectively.CONCLUSION:
The experimental results showed that the combination between the small input image size, and the shallow DCNN architecture was suitable for the four-category classification in X-ray projection angles. The classification accuracy was up to 99.75%. The proposed method has the potential to automatically recognize the slight projection angles and the re-taking images to the acceptance criteria. It is considered that our proposed method can contribute to feedback for re-taking images and to reduce radiation dose due to individual subjectivity.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Deep Learning
Type of study:
Diagnostic_studies
/
Prognostic_studies
/
Qualitative_research
Language:
Ja
Journal:
Nihon Hoshasen Gijutsu Gakkai Zasshi
Year:
2022
Document type:
Article