Effect of patient anxiety on image motion artefacts in CBCT

Keriş, Elif Yıldızer

doi:10.1186/s12903-017-0367-4

Cited by 17 publications

(10 citation statements)

References 47 publications

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“…It is critical for healthcare providers to weigh the potential benefit of diagnostic information against the risk of the imaging procedure [ 20 ]. Additionally, we should take into account that our study was just an in vitro study, the image motion artefacts could be completely avoided [ 21 ], and this also increased the detection of LACs.…”

Section: Discussionmentioning

confidence: 99%

Could cone-beam computed tomography demonstrate the lateral accessory canals?

et al. 2017

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BackgroundRecently, using cone-beam computed tomography (CBCT) to assess root canal morphology has become popular; however, few studies have examined its efficiency to assess the entire root canals, including the tiny lateral and accessory canals (LACs). This study aimed to assess the ability of CBCT to evaluate the root canal of mandibular incisors at three different scanning settings, compared with the canal staining and tooth clearing (CS) technique as the gold standard.MethodsCBCT images of 70 extracted mandibular incisors were taken using NewTom VG CBCT at high-resolution scan mode (HZ), zoom scan mode (ZS), and full scan mode (FS), with different scanning settings. A radiologist, a postgraduate student, and an endodontist assessed the root canal morphology in a blinded manner. The number of root canals (NC), canal configuration according to Vertucci’s classification (VC), and LACs were evaluated twice by each evaluator using the CBCT images, in comparison with CS. Comparisons of the differences were used the chi-square test, and the intra-evaluator and inter-evaluator agreement were used the Kappa statistics; the significance level was set at 0.05.ResultsThe voxel dimension of HZ, ZS and FS modes were 0.125 mm, 0.20 mm and 0.25 mm respectively, and the HZ mode had significant increased scanning doses. For NC, the diagnostic accuracy was >90% in all three modes, with no significant difference among the evaluators and modes. VC and LAC could only be evaluated in HZ mode. For VC, the accuracies were 97.1%, 94.3%, and 92.9% respectively, with no significant differences among the three evaluators. For LAC, the accuracies were 80.0%, 13.3%, and 33.3% respectively, and there were significant differences among the three evaluators. Intra-evaluator agreement was excellent, with the kappa values indicating “perfect” to “substantial” agreement. Inter-evaluator agreement was excellent for NC and VC; however, Kappa values could not be analyzed due to LACs detected were so variable.ConclusionsAs far as possible, the HZ mode should be chosen to demonstrate the root canal system, and partial LACs could be detected using this mode; however, the potential benefit of the diagnostic information must be weighed against the increased radiation dose.

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Section: Discussionmentioning

confidence: 99%

Could cone-beam computed tomography demonstrate the lateral accessory canals?

et al. 2017

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“…This may cause a significant decrease of image quality. 1,33 A systematic review by Spin-Neto 25 reports that in 20% of cases a movement by patients during CBCT examination was registered and that studies concerning image artifact recognition stated a prevalence of 41.5% patient movement. 25 Numerous reasons for movement artifacts are discussed.…”

Section: Habibi Et Almentioning

confidence: 99%

Re-exposure in cone beam CT of the dentomaxillofacial region: a retrospective study

Habibi

2019

Dentomaxillofacial Radiology

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Objectives: Cone beam CT (CBCT) often uses a smaller field of view compared to conventional CT scans. This might lead to a wrong field of view with the need for secondary exposure ("retakes"). The purpose of this retrospective study was to assess the frequency of re-exposures in CBCT and to identify whether the parameters age, gender, and field of view have an influence on the re-exposure of the patient. Additionally, the causes of re-exposures were determined and categorized. Methods: In a retrospective cohort study CBCT images of 4986 patients from the patient database from the

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“…However, patients sometimes cannot cooperate with the operation process, keeping still when they receive radiological assessment, for example, magnetic resonance imaging (MRI) [ 5 , 6 ]. This may be due to the unfamiliar environment, the fear of potential risks, and unawareness of procedure details [ 7 , 8 ]. All these would make patients undergo excess motions.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…It is believed that preprocedure training helps relieve patients from the anxiety condition and improve the results of diagnostic and therapeutic approaches [ 9 , 10 , 8 ]. Patients are usually provided with training to know procedure details by literal, verbal and graphic manners [ 8 ]. Researchers have indicated that video is more comprehensive and acceptable [ 11 , 12 ] for examinees to understand the theory and operation details of a certain approach.…”

Section: Introductionmentioning

confidence: 99%

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Video-based education improves the image quality of diagnostic percutaneous cerebral angiography among elderly patients

Wang

Yuan

et al. 2020

Translational Neuroscience

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ObjectiveDigital subtraction angiography (DSA) is considered the gold standard for cerebral vasculature observation and is increasingly applied among the elderly population. The aim of this study is to determine whether the use of a video-based education system can improve the image quality of percutaneous cerebral angiography.MethodThis study is a single-blinded prospective cohort trial. One hundred and sixty patients (≥65 years old) were enrolled in this study. Eighty patients were provided with video-based education as intervention. Eighty age-matched controls only received regular education. The DSA image quality was assessed between control and intervention groups. It was rated by two readers on a 5-point scale, independently.ResultsNo differences were found between control and intervention groups in baseline characteristics (P > 0.05). The mean overall image quality was significantly higher in patients receiving video-based education than in controls (P < 0.05), and the same trends were found in the respective assessment of each artery (left and right carotid/vertebral artery; P < 0.05). Moreover, the operation time and radiation doses were quite comparable between the two groups (P > 0.05).ConclusionsThis study indicated that video-based education helps elderly patients to acquire improved DSA image quality. It encourages the application of this approach in practice.

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Effect of patient anxiety on image motion artefacts in CBCT

Cited by 17 publications

References 47 publications

Could cone-beam computed tomography demonstrate the lateral accessory canals?

Could cone-beam computed tomography demonstrate the lateral accessory canals?

Re-exposure in cone beam CT of the dentomaxillofacial region: a retrospective study

Video-based education improves the image quality of diagnostic percutaneous cerebral angiography among elderly patients

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