Comparison of 3D reconstruction of mandible for pre-operative planning using commercial and open-source software

Abdullah, Johari Yap; Omar, Marzuki; Hadi, Helmi; Husein, Adam; Rajion, Zainul Ahmad

doi:10.1063/1.4968856

Cited by 19 publications

(12 citation statements)

References 36 publications

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“…They have penetrated the medical market and have proven to be more robust and cost-effective than their commercial counterparts (Ratib et al , 2011). The software may provide manual, semi-automatic or automatic segmentation capability, but they tend to be either very broad or very specific in the scope of functionality that they provide (Abdullah et al , 2016). For example, three-dimensional Slicer (Scanlan et al , 2018) and MIPAV (https://mipav.cit.nih.gov/) software provide large-scale packages/functionalities; however, due to the large number of features that they provide, they carry a steep learning curve.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, Abdullah et al (2016) compared the three-dimensional reconstruction of mandible segmented using MIMICS and open-source medical imaging interaction toolkit (MITK) software on five CT images. Results of the geometric differences showed average errors of two three-dimensional models were less than 1 per cent using HD and no significant differences in the measurement of the landmarks.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of STL skull models produced using open-source software versus commercial software

Abdullah

Hadi

et al. 2019

RPJ

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Purpose This paper aims to compare the automatic segmentation of medical data and conversion to stereolithography (STL) skull models using open-source software versus commercial software. Design/methodology/approach Both open-source and commercial software used automatic segmentation and post-processing of the data without user intervention, thus avoiding human error. Detailed steps were provided for comparisons and easier to be repeated by other researchers. The results of segmentation, which were converted to STL format were compared using geometric analysis. Findings STL skull models produced using open-source software are comparable with the one produced using commercial software. A comparison of STL skull model produced using InVesalius with STL skull model produced using MIMICS resulted in an average dice similarity coefficient (DSC) of 97.6 ± 0.04 per cent and Hausdorff distance (HD) of 0.01 ± 0.005 mm. Inter-rater study for repeatability on MIMICS software yielded an average DSC of 100 per cent and HD of 0. Social implications The application of open-source software will benefit the small research institutions or hospitals to produce and virtualise three-dimensional model of the skulls for teaching or clinical purposes without having to purchase expensive commercial software. It is also easily reproduceable by other researchers. Originality/value This study is one of the first comparative evaluations of an open-source software with propriety commercial software in producing accurate STL skull models. Inaccurate STL models can lead to inaccurate pre-operative planning or unfit implant.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of STL skull models produced using open-source software versus commercial software

Abdullah

Hadi

et al. 2019

RPJ

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“…Threshold-based algorithms or morphological operations are commonly used first for the separation of bony structures from soft tissues. [6][7][8] Then manual work is needed to separate the mandible from the cranial base and the maxilla because the algorithms cannot distinguish between different facial bones with similar intensity values. We refer to this combination of computerized operations and manual editing as 'interactive' segmentation.…”

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confidence: 99%

Marker-based watershed transform method for fully automatic mandibular segmentation from CBCT images

Fan

Beare

Matthews

et al. 2019

Dentomaxillofacial Radiology

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Objectives: To propose a reliable and practical method for automatically segmenting the mandible from CBCT images. Methods: The marker-based watershed transform is a region-growing approach that dilates or "floods" predefined markers onto a height map whose ridges denote object boundaries. We applied this method to segment the mandible from the rest of the CBCT image. The height map was generated to enhance the sharp decreases of intensity at the mandible/tissue border and suppress noise by computing the intensity gradient image of the CBCT itself. Two sets of markers, "mandible" and "background" were automatically placed inside and outside the mandible, respectively in a novel image using image registration. The watershed transform flooded the gradient image by dilating the markers simultaneously until colliding at watershed lines, estimating the mandible boundary. CBCT images of 20 adolescent subjects were chosen as test cases. Segmentation accuracy of the proposed method was evaluated by measuring overlap (Dice similarity coefficient) and boundary agreement against a well-accepted interactive segmentation method described in the literature. Results: The Dice similarity coefficient was 0.97 ± 0.01 (mean ± SD), indicating almost complete overlap between the automatically and the interactively segmented mandibles. Boundary deviations were predominantly under 1 mm for most of the mandibular surfaces. The errors were mostly from bones around partially erupted wisdom teeth, the condyles and the dental enamels, which had minimal impact on the overall morphology of the mandible. conclusions: The marker-based watershed transform method produces segmentation accuracy comparable to the well-accepted interactive segmentation approach.

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“…Currently, the processing of CT and MRI data is routinely performed with commercial software. Materialise Mimics (Leuven, Belgium) can be considered the state-of-the-art software in this field and is the most used by professionals worldwide [11]. However, usage of open-source software as an alternative to a commercial one is incrementally taking place because they guarantee satisfactory performance [11], are versatile and can be readily extended and redistributed.…”

Section: State Of the Art 21 Reconstruction Of An Anatomical District: Methods And Toolsmentioning

confidence: 99%

“…Materialise Mimics (Leuven, Belgium) can be considered the state-of-the-art software in this field and is the most used by professionals worldwide [11]. However, usage of open-source software as an alternative to a commercial one is incrementally taking place because they guarantee satisfactory performance [11], are versatile and can be readily extended and redistributed. As main disadvantages, they often lack user-friendliness and are limited to research purposes.…”

Section: State Of the Art 21 Reconstruction Of An Anatomical District: Methods And Toolsmentioning

confidence: 99%

Operative Workflow from CT to 3D Printing of the Heart: Opportunities and Challenges

2021

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Medical images do not provide a natural visualization of 3D anatomical structures, while 3D digital models are able to solve this problem. Interesting applications based on these models can be found in the cardiovascular field. The generation of a good-quality anatomical model of the heart is one of the most complex tasks in this context. Its 3D representation has the potential to provide detailed spatial information concerning the heart’s structure, also offering the opportunity for further investigations if combined with additive manufacturing. When investigated, the adaption of printed models turned out to be beneficial in complex surgical procedure planning, for training, education and medical communication. In this paper, we will illustrate the difficulties that may be encountered in the workflow from a stack of Computed Tomography (CT) to the hand-held printed heart model. An important goal will consist in the realization of a heart model that can take into account real wall thickness variability. Stereolithography printing technology will be exploited with a commercial rigid resin. A flexible material will be tested too, but results will not be so satisfactory. As a preliminary validation of this kind of approach, print accuracy will be evaluated by directly comparing 3D scanner acquisitions to the original Standard Tessellation Language (STL) files.

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Comparison of 3D reconstruction of mandible for pre-operative planning using commercial and open-source software

Cited by 19 publications

References 36 publications

Comparison of STL skull models produced using open-source software versus commercial software

Comparison of STL skull models produced using open-source software versus commercial software

Marker-based watershed transform method for fully automatic mandibular segmentation from CBCT images

Operative Workflow from CT to 3D Printing of the Heart: Opportunities and Challenges

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