Evaluation of a metal artifact reduction algorithm and an adaptive image noise optimization filter in the estimation of peri-implant fenestration defects using cone beam computed tomography: an in-vitro study

Bağiş, Nilsun; Kurt, Mehmet Hakan; Evli, Cengiz; Camgöz, Melike; Atakan, Cemal; Öztürk, Hilal Peker; Orhan, Kaan

doi:10.1007/s11282-021-00561-3

Cited by 8 publications

(6 citation statements)

References 42 publications

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“…Recently, several studies have used AR filters to see if they improve diagnostic efficiency [11,[29][30][31]. Similar to our results Bezzera et al [31] revealed that the AR did not improve the diagnostic accuracy.…”

Section: Discussionsupporting

confidence: 88%

Influence of voxel size and filter type on detecting vertical root fracture using cone‐beam computed tomography

et al. 2023

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Vertical root fractures (VRFs) can start at any level of the root and progress longitudinally to the coronal attachment. This study aimed to investigate the effects of different exposure parameters used when obtaining CBCT scans in detecting simulated VRFs. Hence, 80 intact human mandibular single‐rooted pre‐molar teeth without root fractures were included in the study. No statistically significant difference was found between the filters in terms of VRF detection in the group with the roots with only root canal filling (Groups 1 and 5); however, 100 voxels were found to be more successful in terms of VRF detection than other voxel sizes. Results of this study suggest that using lower voxel sizes leads to an accurate diagnosis of vertical root fracture, in addition, our results revealed that using AR filters did not improve the diagnostic accuracy in detecting VRFs.

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Section: Discussionsupporting

confidence: 88%

Influence of voxel size and filter type on detecting vertical root fracture using cone‐beam computed tomography

et al. 2023

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“…A previous study assessed the effect of combining MAR with an enhancement filter on the detection of peri-implant fenestration defects located near zirconium implants. 27 The authors found that this combination improved the accuracy of detecting peri-implant fenestrations. Nonetheless, additional filters and diagnostic tasks should be examined to clarify the benefits of combining those tools.…”

Section: Discussionmentioning

confidence: 98%

Vertical root fracture diagnosis in teeth with metallic posts: Impact of metal artifact reduction and sharpening filters

Ruiz,

Rosado,

Fontenele

et al. 2024

Imaging Sci Dent

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Purpose This study examined the influence of a metal artifact reduction (MAR) tool, sharpening filters, and their combination on the diagnosis of vertical root fracture (VRF) in teeth with metallic posts using cone-beam computed tomography (CBCT). Materials and Methods Twenty single-rooted human premolars - 9 with VRF and 11 without - were individually placed in a human mandible. A metallic post composed of a cobalt-chromium alloy was inserted into the root canal of each tooth. CBCT scans were then acquired under the following parameters: 8 mA, a 5×5 cm field of view, a voxel size of 0.085 mm, 90 kVp, and with MAR either enabled or disabled. Five oral and maxillofacial radiologists independently evaluated the CBCT exams under each MAR mode and across 3 sharpening filter conditions: no filter, Sharpen 1×, and Sharpen 2×. The diagnostic performance was quantified by the area under the receiver operating characteristic curve (AUC), sensitivity, and specificity. These metrics were compared using 2-way analysis of variance with a significance level of α=5%. Intra- and inter-examiner agreement were assessed using the weighted kappa test. Results Neither MAR nor the application of sharpening filters significantly impacted AUC or specificity ( P >0.05). However, sensitivity increased when MAR was combined with Sharpen 1× and Sharpen 2× ( P =0.015). The intra-examiner agreement ranged from fair to substantial (0.34-0.66), while the inter-examiner agreement ranged from fair to moderate (0.27-0.41). Conclusion MAR in conjunction with sharpening filters improved VRF detection; therefore, their combined use is recommended in cases of suspected VRF.

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“…[46] evaluated the effects of four MAR protocols (off, low, medium, and high) for the assessment of periodontal and peri-implant defects, and they found no difference in diagnostic accuracy with any MAR protocol. However, Bagis et al [47] recommended the use of the MAR tool for the detection of peri-implant fenestration defects.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of low-dose cone beam computed tomography and metal artifact reduction tool for assessment of peri-implant bone defects: an in vitro study

Gaweesh

Sadat

2022

Preprint

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Objectives: to evaluate the influence of low-dose cone beam computed tomography (LD-CBCT) and metal artifact reduction (MAR) tool on the assessment of peri-implant dehiscence and fenestration. Methodology: Thirty titanium implants were inserted into bovine rib blocks. Twenty had standardized bone defects (10 with dehiscence and 10 with fenestration), while the remaining 10 were used as control group with no defects. Radiographic examinations held with high‐definition CBCT(HD-CBCT) and LD-CBCT with and without application of MAR tool. Images were assessed by four examiners for the presence or absence of peri-implant defects. The area under the area under the receiver operating characteristic (ROC) curve (AUC), sensitivity, specificity, and accuracy were calculated for all radiographic protocols.Results: Results: In the absence of MAR tool, there was no difference in AUC and diagnostic values between LD-CBCT and HD-CBCT for detection of both defects. When the MAR tool was applied, the AUC values, sensitivity, and accuracy were higher in HD-CBCT than in LD-CBCT for the detection of both defects, especially for the dehiscence, while specificity remained the same.Conclusion: LD-CBCT can be used in the evaluation of peri-implant dehiscence and fenestration without any decrease in diagnostic accuracy. The application of MAR tool decrease the diagnostic ability of both defects, especially for the detection of dehiscence defects.Clinical relevance: low-dose protocols of CBCT devices can be performed to assess the peri-implant defects with a significant decrease in patient radiation dose. MAR algorithm is not recommended for use in the evaluation of peri-implant defects.

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Evaluation of a metal artifact reduction algorithm and an adaptive image noise optimization filter in the estimation of peri-implant fenestration defects using cone beam computed tomography: an in-vitro study

Cited by 8 publications

References 42 publications

Influence of voxel size and filter type on detecting vertical root fracture using cone‐beam computed tomography

Influence of voxel size and filter type on detecting vertical root fracture using cone‐beam computed tomography

Vertical root fracture diagnosis in teeth with metallic posts: Impact of metal artifact reduction and sharpening filters

Efficacy of low-dose cone beam computed tomography and metal artifact reduction tool for assessment of peri-implant bone defects: an in vitro study

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