Evaluation of Bone Volume after Secondary Bone Grafting in Unilateral Alveolar Cleft Using Computer-Aided Engineering

Nagashima, Hitoshi; Sakamoto, Yoshiaki; Ogata, Hisao; Miyamoto, Junpei; Yazawa, Masaki; Kishi, Kazuo

doi:10.1597/13-045

Cited by 36 publications

(29 citation statements)

References 18 publications

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“…Of the nine clinical studies analyzed, three reported inclusion of patients under the age of 9 and three included patients aged >12 years . Five of the studies in the sample included patients aged 9–12 years .…”

Section: Resultsmentioning

confidence: 99%

“…Two studies included patients with bilateral clefts , whereas six included patients with unilateral clefts .…”

Section: Resultsmentioning

confidence: 99%

“…Multislice CT was employed in four studies . Oberoi et al , Shirota et al , and Linderup et al used cone‐beam CT. Only one study used Dental ® CT .…”

Section: Resultsmentioning

confidence: 99%

“…Honma et al , Feichtinger et al , Feichtinger et al , Wu et al , Oberoi et al , Linderup et al , and Nagashima et al performed scans before and after graft surgery to measure the bone defect and assess the outcome of surgery, as well as the percentage of bone filling. Shirota et al performed volumetric assessment only in the preoperative period, to estimate the amount of bone graft needed.…”

Section: Resultsmentioning

confidence: 99%

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Volumetric assessment of alveolar clefts: a literature review

Weber

Menezes

Azeredo

et al. 2017

J Oral Pathology Medicine

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Section: Resultsmentioning

confidence: 99%

“…Two studies included patients with bilateral clefts , whereas six included patients with unilateral clefts .…”

Section: Resultsmentioning

confidence: 99%

“…Multislice CT was employed in four studies . Oberoi et al , Shirota et al , and Linderup et al used cone‐beam CT. Only one study used Dental ® CT .…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Volumetric assessment of alveolar clefts: a literature review

Weber

Menezes

Azeredo

et al. 2017

J Oral Pathology Medicine

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show abstract

“…13,14 Computer-aided surgical designs improve the accuracy and effectiveness of surgeries. It is not possible to surgically correct all deformities present in oblique facial clefts.…”

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confidence: 99%

Computer-Assisted Design of Sequential Surgical Procedure for Oblique Facial Clefts With Mandibular Outer Cortex Autografts

Jin

Liu

Gui

et al. 2015

Journal of Craniofacial Surgery

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This procedure was an effective treatment for oblique facial clefts, resulting in high satisfaction, remarkable improvements in facial symmetry, little skin scarring, acceptable bone graft resorption, and dramatic recovery of mandibular donor sites. Computer-assisted surgical simulation effectively describes characteristic skeletal deformities and provides a useful guide to surgical reconstruction.

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Adaptable cascaded registration for personalized maxilla completion and cleft defect volume estimation

Zhang,

Pei,

Guo

et al. 2024

Medical Physics

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BackgroundCone‐beam computed tomography (CBCT) images provide high‐resolution insights into the underlying craniofacial anomaly in patients with cleft lip and palate (CLP), requiring non‐negligible annotation costs to measure the cleft defect for the guidance of the clinical secondary alveolar bone graft procedures. Considering the cumbersome volumetric image acquisition, there is a lack of paired CLP CBCTs and normal CBCTs for learning‐based anatomical structure restoration models. Nowadays, the registration‐based method relieves the annotation burden, though one‐shot registration and the regular mask are limited to handling fine‐grained shape variations and harmony between restored bony tissues and the defected maxilla.PurposeThis study aimed to design and evaluate a novel method for deformable partial registration of the CLP CBCTs and normal CBCTs, enabling personalized maxilla completion and cleft defect volume prediction from CLP CBCTs.MethodsWe proposed an adaptable deep registration framework for personalized maxilla completion and cleft defect volume prediction from CLP CBCTs. The key ingredient was a cascaded partial registration to exploit the maxillary morphology prior and attribute transfer. Cascaded registration with coarse‐to‐fine registration fields handled morphological variations of cleft defects and fine‐grained maxillary restoration. We designed an adaptable cleft defect mask and volumetric Boolean operators for reliable voxel filling of the defected maxilla. A total of 36 clinically obtained CLP CBCTs were used to train and validate the proposed model, among which 22 CLP CBCTs were used to generate a training dataset with 440 synthetic CBCTs by B‐spline deformation‐based data augmentation and the remaining for testing. The proposed model was evaluated on maxilla completion and cleft defect volume prediction from clinically obtained unilateral and bilateral CLP CBCTs.ResultsExtensive experiments demonstrated the effectiveness of the adaptable cleft defect mask and the cascaded partial registration on maxilla completion and cleft defect volume prediction. The proposed method achieved state‐of‐the‐art performances with the Dice similarity coefficient of 0.90 0.02 on the restored maxilla and 0.84 0.04 on the estimated cleft defect, respectively. The average Hausdorff distance between the estimated cleft defect and the manually annotated ground truth was 0.30 0.08 mm. The relative volume error of the cleft defect was 0.08. The proposed model allowed for the prediction of cleft defect maps that were in line with the ground truth in the challenging unilateral and bilateral CLP CBCTs.ConclusionsThe results suggest that the proposed adaptable deep registration model enables patient‐specific maxilla completion and automatic annotation of cleft defects, relieving tedious voxel‐wise annotation and image acquisition burdens.

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Evaluation of Bone Volume after Secondary Bone Grafting in Unilateral Alveolar Cleft Using Computer-Aided Engineering

Cited by 36 publications

References 18 publications

Volumetric assessment of alveolar clefts: a literature review

Volumetric assessment of alveolar clefts: a literature review

Computer-Assisted Design of Sequential Surgical Procedure for Oblique Facial Clefts With Mandibular Outer Cortex Autografts

Adaptable cascaded registration for personalized maxilla completion and cleft defect volume estimation

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