Clinical image quality evaluation for panoramic radiography in Korean dental clinics
최보람, 최다혜, 허경회, 이원진, 허민석, 최순철, 배광학, 이삼선,
소속 상세정보
최보람 ( Choi Bo-Ram ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
최다혜 ( Choi Da-Hye ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
허경회 ( Huh Kyung-Hoe ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
이원진 ( Yi Won-Jin ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
허민석 ( Heo Min-Suk ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
최순철 ( Choi Soon-Chul ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
배광학 ( Bae Kwang-Hak ) - Seoul National University School of Dentistry Department of Preventive and Public Health Dentistry
이삼선 ( Lee Sam-Sun ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
KMID : 1024020120420030183
Abstract
Purpose: The purpose of this study was to investigate the level of clinical image quality of panoramic radiographs and to analyze the parameters that influence the overall image quality.
Materials and Methods: Korean dental clinics were asked to provide three randomly selected panoramic radiographs. An oral and maxillofacial radiology specialist evaluated those images using our self-developed Clinical Image Quality Evaluation Chart. Three evaluators classified the overall image quality of the panoramic radiographs and evaluated the causes of imaging errors.
Results: A total of 297 panoramic radiographs were collected from 99 dental hospitals and clinics. The mean of the scores according to the Clinical Image Quality Evaluation Chart was 79.9. In the classification of the overall image quality, 17 images were deemed ’optimal for obtaining diagnostic information,’ 153 were ’adequate for diagnosis,’ 109 were ’poor but diagnosable,’ and nine were ’unrecognizable and too poor for diagnosis’. The results of the analysis of the causes of the errors in all the images are as follows: 139 errors in the positioning, 135 in the processing, 50 from the radiographic unit, and 13 due to anatomic abnormality.
Conclusion: Panoramic radiographs taken at local dental clinics generally have a normal or higher-level image quality. Principal factors affecting image quality were positioning of the patient and image density, sharpness, and contrast. Therefore, when images are taken, the patient position should be adjusted with great care. Also, standardizing objective criteria of image density, sharpness, and contrast is required to evaluate image quality effectively.
키워드
Quality Control; Radiography; Panoramic; Image Quality Enhancement; Quality Assurance
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