Background: Artefacts in images related to patient movement decrease image quality, potentially necessitating\nre-scanning, which leads to an extra radiation dose for the patient. Thus, avoiding patient motion reduces patient\nexposure to radiation. The aim of this study was to analyse image motion artefacts (MAs) and how they are\naffected by patient anxiety during cone beam computed tomography (CBCT) examination.\nMethods: A total of 100 patients undergoing CBCT examination were investigated. The State Trait Anxiety Inventory\n(STAI-S and STAI-T) form was used to measure patient anxiety. Patient�s age, gender, dental anxiety score, diagnostic\nreason for CBCT examination, field of view (FOV), acquisition time, anatomical area, and presence of motion artefacts\non images were recorded. Comparisons of the parameters were evaluated using Pearson�s correlation, the chi-square\ntest, the Mann-Whitney U test, the Kruskal-Wallis test and t-tests. The significance level was set at 0.05.\nResults: The mean values of the scores for the total population were 37.2 for the STAI-S and 41.6 for the STAI-T.\nWomen exhibited higher anxiety levels than men. The patients� anxiety scores were significantly correlated with dental\nfear. The prevalence of patients showing motion artefacts was 6%. The mean age of patients with motion artefacts on\ntheir images (56.83) was higher than that of patients without (39.14). There was no relationship between motion\nartefact presence and patient gender, anxiety score, diagnostic reason for CBCT examination, FOV, acquisition time, or\nanatomical area. Patients showing motion artefacts on their images had higher STAI scores than those with no motion\nartefacts (non-significant).\nConclusions: The population in this study experienced anxiety before CBCT scanning. Excessive anxiety did not clearly\naffect whether image motion artefacts were generated during CBCT examination, although a non-significant increase\nin STAI scores was noticed in patients with motion artefacts on their images.
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