@article{2991260,
    title = "Comparison of spatial and contrast resolution for cone-beam computed tomography scanners",
    author = "Pauwels, R. and Beinsberger, J. and Stamatakis, H. and Tsiklakis, K. and Walker, A. and Bosmans, H. and Bogaerts, R. and Jacobs, R. and Horner, K.",
    journal = "Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology",
    year = "2012",
    volume = "114",
    number = "1",
    pages = "127-135",
    issn = "2212-4403",
    doi = "10.1016/j.oooo.2012.01.020",
    keywords = "article;  comparative study;  computed tomography scanner;  cone beam computed tomography;  equipment;  human;  image quality;  radiation dose;  reproducibility, Cone-Beam Computed Tomography;  Humans;  Phantoms, Imaging;  Radiation Dosage;  Reproducibility of Results;  Tomography Scanners, X-Ray Computed",
    abstract = "Objective: The purpose was to evaluate the perceived spatial and contrast resolution for a wide range of cone-beam computed tomography (CBCT) devices. Study Design: A customized polymethyl methacrylate (PMMA) phantom was developed. Inserts containing a line-pair and rod pattern were used. The phantom was scanned with 13 CBCT devices and 1 multislice CT (MSCT) device using a variety of scanning protocols. The images were presented to 4 observers for scoring. Results: The observer scores showed excellent agreement. A wide range was seen in image quality between CBCT exposure protocols. Compared with the average CBCT scores, the MSCT protocols scored lower for the line-pair insert but higher for the rod insert. Conclusions: CBCT devices are generally suitable for the visualization of high-contrast structures. Certain exposure protocols can be used for depicting low-contrast structures or fine details. The user should be able to select appropriate exposure protocols according to varying diagnostic requirements. © 2012 Elsevier Inc. All rights reserved."
}