Low-dose Multidetector Computed Tomographic and Cone-beam Computed Tomographic Protocols for Volumetric Measurement of Simulated Periapical Lesions
| Autor: | Jéssica Lopes Trindade, Gustavo Nogara Dotto, Carlos Alexandre Souza Bier, Raquel Cristine Silva Barcelos, Camilla dos Santos Tibúrcio-Machado, Gabriela Salatino Liedke |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Variance test Cone beam computed tomography business.industry Intraclass correlation Low dose 030206 dentistry Gold standard (test) Cone-Beam Computed Tomography computer.software_genre Volumetric measurement Computed tomographic 03 medical and health sciences 030104 developmental biology 0302 clinical medicine Voxel Medicine Humans business Nuclear medicine General Dentistry computer Periapical Periodontitis Software |
| Zdroj: | Journal of endodontics. 47(7) |
| ISSN: | 1878-3554 |
| Popis: | Introduction The purpose of this study was to evaluate the accuracy of low-dose multidetector computed tomographic (LD-MDCT) imaging for the volumetric measurement of simulated periapical lesions. Methods Eighteen monoradicular teeth were introduced in bone blocks, and periapical lesions were simulated at the periapical region of each tooth. All teeth were imaged using 4 acquisition protocols: large (dentoalveolar) field of view (FOV) cone-beam computed tomographic (CBCT) imaging (120 kV, 5 mA, and 0.2-mm voxel), small (dental) FOV CBCT imaging (90 kV, 10 mA, and 0.2-mm voxel), standard multidetector computed tomographic imaging (120 kV, 50 mA, and 0.62-mm voxel), and LD-MDCT imaging (120 kV, 10 mA, and 0.62-mm voxel). Tomographic images were evaluated by a single trained and calibrated examiner (intraclass correlation coefficient = 0.991) using ITK-SNAP segmentation software (University of Pennsylvania, Philadelphia, PA). The gold standard was obtained by the impressions of the lesions with regular fluid addition silicone and individual weighing using a precision analytical scale. Data were evaluated by the repeated measures analysis of variance test; the significance level was defined as P Results No statistical differences (P > .05) were found among the groups regardless of the device, milliamperage, FOV, or voxel size. Conclusions LD-MDCT shows performance comparable with other standard reference methods for measuring the volume of periapical lesions and can be a useful and safe protocol in clinical situations in which CBCT imaging is not available, such as in cases of patients admitted to hospitals. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|