• 목록

This study was conducted as part of a series of studies to introduce the Convolutional Neural Network(CNN) into the diagnostic
field of osteoporosis. The purpose of this study was to compare the results when testing Digital Radiography(DR) and Computed
Radiography(CR) panoramic radiographs by CNN that were trained by DR panoramic radiographs. The digital panoramic radiographs
of females who visited for the purpose of diagnosis and treatment at Chonnam National University Dental Hospital were taken. Two
Oral and Maxillofacial Radiologists were selected for the study to compare the panoramic radiographs with normal and osteoporosis
images. Among them, 1068 panoramic radiographs of females{Mean [± standard deviation] age: 49.19 ± 21.91 years} obtained by DR
method were used for training of CNN. 200 panoramic radiographs of females{Mean [± standard deviation] age: 63.95 ± 6.45 years}
obtained by DR method and 202 panoramic radiographs of females{Mean [± standard deviation] age: 62.00 ± 6.86 years} obtained by
CR method were used for testing of CNN. When the DR panoramic radiographs were tested, the Accuracy was 92.5%. When the CR
panoramic radiographs were tested, the Accuracy was 76.2%. It can be seen that the CNN trained by DR panoramic radiographs is
suitable to be tested with the same DR panoramic radiographs.

Key words : CNN, Osteoporosis, DR panoramic radiographs, CR panoramic radiographs