A Review of Factors That Affect Artifact From Metallic Hardware on Multi-Row Detector Computed Tomography

Kataoka, Milliam L.; Hochman, Mary G.; Rodriguez, Edward K.; Lin, Pei‐Jan Paul; Kubo, Shigeto; Raptopolous, Vassilios

doi:10.1067/j.cpradiol.2009.05.002

Cited by 60 publications

(38 citation statements)

References 9 publications

(10 reference statements)

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“…Despite recent advances in imaging hardware and software filtering techniques [31, 32], the scatter effect in clinical CT can only be reduced, not neutralized. This finding applies to TrABL but also to other applications such as digital (2D or 3D) templating.…”

Section: Resultsmentioning

confidence: 99%

Quantitative Computerized Assessment of the Degree of Acetabular Bone Deficiency: Total radial Acetabular Bone Loss (TrABL)

Gelaude¹,

Clijmans²,

Delport

2011

Advances in Orthopedics

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A novel quantitative, computerized, and, therefore, highly objective method is presented to assess the degree of total radical acetabular bone loss. The method, which is abbreviated to “TrABL”, makes use of advanced 3D CT-based image processing and effective 3D anatomical reconstruction methodology. The output data consist of a ratio and a graph, which can both be used for direct comparison between specimens. A first dataset of twelve highly deficient hemipelves, mainly Paprosky types IIIB, is used as illustration. Although generalization of the findings will require further investigation on a larger population, it can be assumed that the presented method has the potential to facilitate the preoperative use of existing classifications and related decision schemes for treatment selection in complex revision cases.

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Section: Resultsmentioning

confidence: 99%

Quantitative Computerized Assessment of the Degree of Acetabular Bone Deficiency: Total radial Acetabular Bone Loss (TrABL)

Gelaude¹,

Clijmans²,

Delport

2011

Advances in Orthopedics

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“…20 Some attempts to reduce this inconvenience have been proposed, such as using higher kVp and/or mA, filtering algorithms, or changing the reconstruction thickness of the sections. 13,20,22 The present study focused on the reconstruction thickness variation, since this procedure does not involve re-exposure of the patient and can be performed by most dedicated CBCT reconstruction software, not requiring specific postprocessing tools. In order to specifically evaluate the impact of increasing the reconstruction thickness on the diagnosis of misfit, only two-dimensional images were evaluated instead of the whole CBCT volume.…”

Section: Discussionmentioning

confidence: 99%

“…12 In an attempt to reduce the appearance of artifacts in CBCT images, some strategies have been developed, most of them involving postprocessing of acquired data such as the use of smoothening filters or changing the reconstruction thickness of the images. 13 This would reduce metal artifacts and allow for higher diagnostic accuracy for such delicate tasks.…”

mentioning

confidence: 99%

Diagnostic accuracy of cone beam computed tomography sections with various thicknesses for detecting misfit between the tooth and restoration in metal-restored teeth

Liedke

Spin‐Neto

Vizzotto

et al. 2015

Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology

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“…Owing to advances in CT technology, evaluation of the fusion mass has improved further with multiplanar reconstruction, artefact reduction, and sections with a thickness of 0.5-1 mm (34,(37)(38)(39). Due to these characteristics, CT is currently the most widely accepted standard imaging method in noninvasive evaluation of spinal fusion (27,34).…”

Section: Discussionmentioning

confidence: 99%

The efficacy of in situ local autograft in adolescent idiopathic scoliosis surgery: a comparison of three different grafting methods

Işık¹,

Özdemir²,

Sakaogullari³

et al. 2017

Turk J Med Sci

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A prospective evaluation was made of 65 patients with AIS scheduled for posterior spinal fusion between 2009 and 2011. Randomization was performed by using allograft and local autograft for the first 21 patients, using only local graft for the next 22 patients, and using posterior iliac crest graft and local graft for the final 22 patients according to Background/aim: This study was performed to show the efficacy of in situ local autograft with a comparison of in situ local autograft, local autograft with allograft, and local autograft with posterior iliac crest autograft. Materials and methods:In this prospective randomized study, a total of 65 adolescent idiopathic scoliosis (AIS) patients were separated into 3 groups: Group 1 using local autograft and allograft, Group 2 using local autograft only, and Group 3 using local autograft and posterior iliac crest autograft. Posterior segmental instrumentation was also applied to all patients. The mean follow-up period was 28.5 months (range, 15-40 months). Pseudarthrosis was investigated with the multiplanar and three-dimensional images obtained using multislice computed tomography, thoracolumbar bone single-photon emission computed tomography, and three-phase regional and whole body bone scintigraphy.Results: Pseudarthrosis was not observed in any patient. Fusion was obtained in all patients at the end of the follow-up periods. Conclusion:Similar results were obtained in respect of fusion in all 3 groups. Without the use of additional grafts, sufficient fusion can be achieved with the use of local autograft alone for posterior spinal fusion in patients with AIS.

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A Review of Factors That Affect Artifact From Metallic Hardware on Multi-Row Detector Computed Tomography

Cited by 60 publications

References 9 publications

Quantitative Computerized Assessment of the Degree of Acetabular Bone Deficiency: Total radial Acetabular Bone Loss (TrABL)

Quantitative Computerized Assessment of the Degree of Acetabular Bone Deficiency: Total radial Acetabular Bone Loss (TrABL)

Diagnostic accuracy of cone beam computed tomography sections with various thicknesses for detecting misfit between the tooth and restoration in metal-restored teeth

The efficacy of in situ local autograft in adolescent idiopathic scoliosis surgery: a comparison of three different grafting methods

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