Comparative assessment of subjective image quality of cross-sectional cone-beam computed tomography scans
| Autor: | Hakan Kurt, Sema Murat, Eray Kolsuz, Candan Semra Paksoy, Kıvanç Kamburoğlu, Selcen Yüksel |
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| Rok vydání: | 2011 |
| Předmět: |
Observer Variation
Analysis of Variance Cone beam computed tomography Anatomy Cross-Sectional business.industry Image quality Root canal Reproducibility of Results Dentistry Mandibular canal Image processing Mandible Cone-Beam Computed Tomography Signal-To-Noise Ratio Mental foramen Imaging Three-Dimensional medicine.anatomical_structure Lamina dura Cadaver Humans Medicine Tomography business Nuclear medicine General Dentistry |
| Zdroj: | Journal of Oral Science. 53:501-508 |
| ISSN: | 1880-4926 1343-4934 |
| Popis: | Since the introduction of cone-beam computed tomography (CBCT), several novel systems with different technical specifications and settings have become commercially available. Therefore, it is essential to evaluate CBCT systems for differences in the subjective quality of images obtained for various dental procedures. We evaluated the subjective image quality of cross-sectional scans obtained from various CBCT systems. Images of three cadaver mandibles were obtained from four different CBCT units: 1) Veraviewepocs 3D 40 × 40 mm field of view (FOV) (voxel size: 0.125 × 0.125 × 0.125 mm), 2) Iluma, low- resolution (voxel size: 0.3 × 0.3 × 0.3 mm), 3) Kodak, 50 × 3.7 cm FOV (voxel size: 0.076 × 0.076 × 0.076 mm), and 4) Vatech 12 × 8.5cm FOV (voxel size: 0.160 × 0.160 × 0.160 mm). We assessed subjective image quality and the visibility of 10 specific features, namely, caries, amalgam restoration, final implant drill, root canal filling, metal crown, mandibular canal, mental foramen, tooth (periodontal ligament space and lamina dura), trabecular pattern, and soft tissue. Images were viewed and scored by five calibrated observers, and image quality was ranked from best to worst. The Veraviewepocs 3D had the highest quality images for most of the assessed features, whereas the Iluma low-resolution scans were rated as the lowest quality images. (J Oral Sci 53, 501-508, 2011) |
| Databáze: | OpenAIRE |
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