8 In 2012, the European Commission suggested that the Catphan phantoms, which are commonly used for QA in multidetector tomography (fan beam CT), could be used for CBCT as well. A phantom is a device containing materials that are able to mimic the density of the tissues in the human body. 5 The American Academy of Oral and Maxillofacial Radiology 6 also made recommendations on the topic, stating that a QA programme should include, among other things, a documentation of the evaluated image quality parameters.Īn adequate phantom is an essential part of an image QA programme. The preliminary results were presented in 2009, and the final outcome was adopted and described by the European Commission in 2012. To overcome this deficiency, the Safety and Efficacy of a New Emerging Dental X-Ray (SEDENTEXCT) project in 2008 pursued to define a QA process for CBCT imaging. ![]() ![]() 5, 6 Although the European guidelines on radiation protection in dental radiology 7 include strategies for image QA, they do not cover CBCT imaging. ![]() 1– 4 Owing to the relative novelty of this diagnostic method, there is an ongoing effort to define quality assurance (QA) processes for CBCT. ![]() CBCT is a potentially low-dose CT technique for the visualization of mineralized tissues in the head and neck region.
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