Brightness and contrast adjustments influence the radiographic detection of soft tissue calcification
| Autor: | Deborah Queiroz Freitas, Mariane Michels, Matheus Lima Oliveira, Larissa Pereira Lagos de Melo, Luciana Asprino, Larissa Moreira-Souza |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Panoramic radiograph Pathologic calcification 03 medical and health sciences 0302 clinical medicine Phlebolith Calcinosis Tonsillolith Radiography Panoramic Medicine Humans General Dentistry Aged business.industry Soft tissue 030206 dentistry Pharyngeal Diseases Radiography Dental Digital Middle Aged medicine.disease Stylohyoid ligament Cartilage Otorhinolaryngology 030220 oncology & carcinogenesis Female business Nuclear medicine Neck Calcification |
| Zdroj: | Oral diseasesREFERENCES. 25(7) |
| ISSN: | 1601-0825 |
| Popis: | Objective To assess the influence of subjective enhancement of brightness and contrast of digital panoramic radiographs on the detection of soft tissue calcifications. Materials and methods In this observational study, 500 digital panoramic radiographs were evaluated by two examiners in consensus, who scored the images for the presence of calcifications for each right and left side of the image. After 30 days, all images were revaluated under subjective manipulation of digital brightness and contrast. Calcifications were classified based on the diagnostic hypothesis: sialolith, tonsillolith, calcified atheroma, phlebolith, rhinolith, maxillary sinus antrolith, synovial chondromatosis, lymph node calcification, stylohyoid ligament, triticeous cartilage, or/and upper horn of thyroid cartilage calcification. For intra-examiner agreement, 20% of the sample was reevaluated. The Kappa test and McNemar test were used (α = 0.05). Results In original images, calcifications were observed in 44.2% of the patients, and in enhanced images, this number was 70.8%. Many calcifications were detected only in enhanced images, mainly in the diagnostic hypotheses of calcified atheroma and stylohyoid ligament. Intra-examiner agreement was excellent for the detection of soft tissue calcifications (0.82) and for the classification (0.81). Conclusion Subjective enhancement of brightness and contrast alters the detection of soft tissue calcifications in digital panoramic radiograph. |
| Databáze: | OpenAIRE |
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