Impact of digital conversion of screen-film chest radiographs on the image quality of pneumoconiosis
10.20001/j.issn.2095-2619.20251216
- VernacularTitle:尘肺病屏胶胸片数字转化后对胸片质量影响分析
- Author:
Songtao DAI
1
;
Luyan GE
;
Ningning ZHANG
;
Jing BAI
;
Juan GAO
;
Huitai DONG
Author Information
1. Department of Medical Imaging, Shijiazhuang Maternity & Child Healthcare Hospital, Shijiazhuang, Hebei 050090, China
- Publication Type:Journal Article
- Keywords:
Pneumoconiosis;
Screen-film radiograph;
Digital transformation;
Quality of chest radiographs;
Optical density
- From:
China Occupational Medicine
2025;52(6):686-689
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the impact of digital conversion of screen-film chest radiographs on image quality in patients with pneumoconiosis. Methods Ten high-kilovoltage screen-film chest radiographs from pneumoconiosis patients were digitally converted using three devices, including a digital single-lens reflex camera, a smartphone, and a medical film scanner. The image quality and optical density values before and after image adjustment were compared across different image formats. Results Before adjustment, among the 30 JPEG images, 24 had diagnostic defect areas and 26 had unqualified optical density values. In RAW format, optical density values were not qualified in 18 out of 30 images. In DICOM format, optical density values were not qualified in nine of ten images. After adjustment, optical density values were not qualified in 13 JPEG images, 12 RAW images, and one DICOM image. Comparisons of chest radiograph quality grade distributions before and after adjustment showed significant differences for all three image formats (all P<0.05). Conclusion After being digitally converted by taking images in RAW format with digital photographic equipment and undergoing post-processing adjustment, the quality of screen-film chest radiographs for pneumoconiosis can meet the diagnostic requirements.
