Artefacts in images related to patient movement decrease image quality, potentially necessitating re-scanning, which leads to an extra radiation dose for the patient. Thus, avoiding patient motion reduces patient exposure to radiation. The aim of this study was to analyse image motion artefacts (MAs) and how they are affected by patient anxiety during cone beam computed tomography (CBCT) examination.
A total of 100 patients undergoing CBCT examination were investigated. The State Trait Anxiety Inventory (STAI-S and STAI-T) form was used to measure patient anxiety. Patient’s age, gender, dental anxiety score, diagnostic reason for CBCT examination, field of view (FOV), acquisition time, anatomical area, and presence of motion artefacts on images were recorded. Comparisons of the parameters were evaluated using Pearson’s correlation, the chi-square test, the Mann-Whitney U test, the Kruskal-Wallis test and t-tests. The significance level was set at 0.05.
The mean values of the scores for the total population were 37.2 for the STAI-S and 41.6 for the STAI-T. Women exhibited higher anxiety levels than men. The patients’ anxiety scores were significantly correlated with dental fear. The prevalence of patients showing motion artefacts was 6%. The mean age of patients with motion artefacts on their images (56.83) was higher than that of patients without (39.14). There was no relationship between motion artefact presence and patient gender, anxiety score, diagnostic reason for CBCT examination, FOV, acquisition time, or anatomical area. Patients showing motion artefacts on their images had higher STAI scores than those with no motion artefacts (non-significant).
The population in this study experienced anxiety before CBCT scanning. Excessive anxiety did not clearly affect whether image motion artefacts were generated during CBCT examination, although a non-significant increase in STAI scores was noticed in patients with motion artefacts on their images.
Fuentes D, Gorenstein C, Hu LW. Dental anxiety and trait anxiety: an investigation of their relationship. Br Dent J. 2009;10:253.
Spielberger CD, Gorsuch RL, Lushene RE. State-trait anxiety inventory, manual for the state-trait anxiety inventory. Palo Alto: Consulting Psychologist Press; 1970.
Spielberger CD. State–trait anxiety inventory (Form Y). Redwood City: Mind Garden, Inc; 1983.
Tarazona B, Tarazona-Álvarez P, Peñarrocha-Oltra D, Rojo-Moreno J, Peñarrocha-Diago M. Anxiety before extraction of impacted lower third molars. Med Oral Patol Oral Cir Bucal. 2015;20:246–50. CrossRef
Selim MA. Effect of pre-instruction on anxiety levels of patients undergoing magnetic resonance imaging examination. East Mediterr Health J. 2001;7:519–25. PubMed
Teo CS, Foong W, Lui HH, Vignehsa H, Elliott J, Milgrom P. Prevalence of dental fear in young adult Singaporeans. Int Dent J. 1990;40:37–42. PubMed
Thomson WM, Stewart JF, Carter KD, Spencer AJ. Dental anxiety among Australians. Int Dent J. 1996;46:320–4. PubMed
Brand HS, Gortzak RA, Abraham-Inpijn L. Anxiety and heart rate correlation prior to dental check-up. Int Dent J. 1995;45:347–51. PubMed
Abdelkarim A, Noujeim M, Sarkis T, Lee R, Mah P, Nummikoski P. Effect of movement on high-resolution cone-beam computed tomography images. Oral Surg Oral Med Oral Pathol Oral Radio Endod. 2007;103:48. CrossRef
Lee R, Azevedo B, Shintaku W, Noujeim M, Nummikoski P. Patient movement in three different CBCT units. Oral Surg Oral Med Oral Pathol Oral Radio Endod. 2008;105:55. CrossRef
- Effect of patient anxiety on image motion artefacts in CBCT
Elif Yıldızer Keriş
- BioMed Central
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