Impact of metal artefacts on subjective perception of image quality of 13 CBCT devices

Wanderley, Victor Aquino; Leite, André Ferreira; Vasconcelos, Karla de Faria; Pauwels, Ruben; Müller-García, Francisca; Becker, Kathrin; Oliveira, Matheus Lima; Jacobs, Reinhilde

doi:10.1007/s00784-022-04409-w

Cited by 9 publications

(4 citation statements)

References 40 publications

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“…The main strengths of the study were the application of an anthropomorphic phantom covered with Mix-D for simulating x-ray attenuation as observed in clinical scans and assessment of natural teeth with preexisting challenging endodontic tasks instead of relying on artificially simulated situations 11 . Furthermore, the registration of tested images onto a reference image guaranteed the evaluation at the same anatomical level 2 , 25 . At the same instance, certain inherent limitations also existed, such as absence of motion artefacts.…”

Section: Discussionmentioning

confidence: 99%

Feasibility of photon-counting computed tomography as a novel imaging modality for challenging endodontic diagnostic tasks

Fontenele

Pícoli

Pinto

et al. 2023

Sci Rep

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Photon-counting computed tomography (PCCT) is an innovative technological advancement in relation to x-ray detectors which offers ultra-high-resolution images. The current study aimed to evaluate the visualization ability of PCCT compared to cone-beam computed tomographic (CBCT) devices for challenging endodontic diagnostic tasks. A reference image of an anthropomorphic phantom was acquired using an industrial micro-CT device. Thereafter, the phantom was scanned with three imaging devices, which included PCCT scanner (NAEOTOM Alpha) and two CBCT devices (3D Accuitomo 170 and NewTom VGi evo) having standard and high-resolution acquisition protocols. The diagnostic tasks involved visualizing fine endodontic structures (apical delta, narrow canal, and isthmus) and root cracks. Three experienced examiners assessed the images and were blinded to the PCCT and CBCT devices. Each image was rated according to a three-grade scale (appropriate, acceptable, or inappropriate) for the diagnostic tasks. In relation to fine endodontic structures grouped together, PCCT showed similar diagnostic performance compared to the reference image (p > 0.05). As for the CBCT devices, an excellent performance was only observed with the 3D Accuitomo 170 device at a high-resolution acquisition mode (p > 0.05). The visualization of root cracks was also better with 3D Accuitomo 170 compared to other devices (p < 0.05). Overall, PCCT and 3D Accuitomo 170 at a high-resolution setting showed similar performance for visualizing fine endodontic structures. In addition, the high-resolution CBCT protocol was superior for visualizing root cracks compared to both PCCT and other standard- and high-resolution CBCT protocols.

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Section: Discussionmentioning

confidence: 99%

Feasibility of photon-counting computed tomography as a novel imaging modality for challenging endodontic diagnostic tasks

Fontenele

Pícoli

Pinto

et al. 2023

Sci Rep

Self Cite

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“…In cases where re-examination would be necessary due to the patient's movement, all risks associated with radiation dose for the patient must be evaluated beforehand. The image quality also depends on the materials of various dental artifacts, which can influence image quality and diagnosis accuracy [32]. All practitioners utilizing CBCT must undergo accredited training.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, CBCT scans are typically simpler for patients to understand than those for PA X-rays because they offer a clear, three-dimensional view of their oral structure. This aids patients in gaining a better understanding of their diagnosis and potential treatment choices [32]. The American Academy of Oral and Maxillofacial Radiology (AAOMR) and the AAE have developed guidelines with evidence-based recommendations for CBCT use in endodontic case management [42].…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis of Examination Methods for Periapical Lesion Diagnostics: Assessing Cone-Beam Computer Tomography, Ultrasound, and Periapical Radiography

Karkle,

Slaidina,

Zolovs

et al. 2024

Diagnostics

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Introduction: Periapical lesions of teeth are typically evaluated using periapical X-rays (PA) or cone-beam computer tomography (CBCT); however, ultrasound imaging (US) can also be used to detect bone defects. A comparative analysis is necessary to establish the diagnostic accuracy of US for the detection of periapical lesions in comparison with PA and CBCT. Objectives: This study aimed to evaluate and compare the measurement precision of US against PA and CBCT in detecting periapical lesions. Methods: This study included 43 maxillary and mandibular teeth with periapical lesions. All teeth were examined clinically, radiographically, and ultrasonographically. Observers evaluated and measured the periapical lesions on CBCT, PA, and US images. Results: The comparison of lesion size showed that it differs significantly between the different methods of examination. A statistically significant difference was found between CBCT and US (mean difference = 0.99 mm, 95% CI [0.43–1.55]), as well as between CBCT and PA (mean difference = 0.61 mm, 95% CI [0.17–1.05]). No difference was found between the US and PA methods (p = 0.193). Conclusion: US cannot replace PA radiography in detecting pathologies but it can accurately measure and characterize periapical lesions with minimal radiation exposure. CBCT is the most precise and radiation-intensive method so it should only be used for complex cases.

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“…All the methods were designed and approved according to the regulations of the Belgian national council for bioethics research committee (protocol number NH019 2019-09-03) and the Helsinki Declaration. A dried human skull and mandible with full dentition was used in the present study 14,16 .…”

Section: Methodsmentioning

confidence: 99%

Image quality for visualization of cracks and fine endodontic structures using 10 CBCT devices with various scanning protocols and artefact conditions

Pinto

Vasconcelos

Leite

et al. 2023

Sci Rep

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The aim of this study was to evaluate CBCT exposure protocols and CBCT devices in terms of image quality for the detection of cracks and fine endodontic structures using 3 conditions of metallic artifacts. An anthropomorphic phantom containing teeth with cracks, isthmus, narrow canal, and apical delta was scanned using ten CBCT devices. A reference industrial CT image was used to detect and measure all structures. Three conditions were created: (1) metal-free, (2) ‘endo’ and (3) ‘implant’ with metallic objects placed next to the teeth of interest. For each condition, three protocols were selected: medium field of view (FOV) standard resolution, small FOV standard and high resolution. The results showed that only small FOV high-resolution metal-free images from two devices (A and H) were appropriate to visualize cracks. For fine structure identification, the best result was observed for small FOV high resolution. However, the visualization significantly worsened in the presence of metallic artefacts. The ability of CBCT images for visualizing cracks is restricted to certain CBCT devices. Once metallic artefacts are present, crack detection becomes unlikely. Overall, small FOV high-resolution protocols may allow detection of fine endodontic structures as long as there are no high-dense objects in the region of interest.

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Impact of metal artefacts on subjective perception of image quality of 13 CBCT devices

Cited by 9 publications

References 40 publications

Feasibility of photon-counting computed tomography as a novel imaging modality for challenging endodontic diagnostic tasks

Feasibility of photon-counting computed tomography as a novel imaging modality for challenging endodontic diagnostic tasks

Comparative Analysis of Examination Methods for Periapical Lesion Diagnostics: Assessing Cone-Beam Computer Tomography, Ultrasound, and Periapical Radiography

Image quality for visualization of cracks and fine endodontic structures using 10 CBCT devices with various scanning protocols and artefact conditions

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