Intracranial Volume Quantification from 3D Photography

Tu, Liyun; Porras, Antonio R.; Ensel, Scott; Tsering, Deki; Paniagua, Beatriz; Enquobahrie, Andinet; Oh, Albert K.; Keating, Robert; Rogers, Gary F.; Linguraru, Marius George

doi:10.1007/978-3-319-67543-5_11

Cited by 9 publications

(7 citation statements)

References 14 publications

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“…We did observe some mild phenotypic changes along the scaphocephaly spectrum, but this was only noted using very sophisticated proprietary imaging software we have previously described. [14][15][16][17][18][19] Thus, this group of patients falls into the subset of "normocephalic" sagittal craniosynostosis as described by Morritt et al and Ruane and colleagues. 4,12 Although an incidental suture fusion in this age group is abnormal, it is unclear whether it has any clinical importance.…”

Section: Discussionmentioning

confidence: 99%

“…Unfortunately, the normal head shape in these patients makes clinical detection nearly impossible, and widespread radiographic imaging is impractical because of the cost and the recent concerns about the oncogenic effects of ionizing radiation. Fortunately, the computed tomography-derived shape analysis protocols that we used to identify the subtle shape changes in this cohort are now formatted for use with three-dimensional photogrammetry, 18,19 and this modality may offer a practical radiation-free manner of detecting affected children. Currently, the equipment for three-dimensional photogrammetry equipment is quite large and expensive, but there are efforts underway to apply the technology using a smaller device, such as a cell phone.…”

Section: Aq2mentioning

confidence: 99%

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Premature Fusion of the Sagittal Suture as an Incidental Radiographic Finding in Young Children

Manrique¹,

Mantilla-Rivas²,

Perez³

et al. 2021

Plastic &Amp; Reconstructive Surgery

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Background: Craniosynostosis typically develops prenatally and creates characteristic changes in craniofacial form. Nevertheless, postnatal forms of craniosynostosis have been described. The purpose of this study was to determine the prevalence of incidentally identified, but temporally premature, cranial suture fusion in normocephalic children. Methods: Computed tomographic scans obtained from children aged 1 to 5 years evaluated in the authors' emergency department between 2005 and 2016 were reviewed for evidence of craniosynostosis. Patients with prior ventriculoperitoneal shunt, brain or cranial abnormality, or known syndromes were excluded. The presence of craniosynostosis and cranial index was assessed by a panel of three craniofacial surgeons and one pediatric neurosurgeon. Demographic information, fusion type, reason for the computed tomographic scan, and medical history were recorded as covariates. Cranial shape and intracranial volume were calculated using a previously validated automated system. Results: Three hundred thirty-one patients met the inclusion criteria. The mean age was 2.4 ± 1.3 years. Eleven patients (3.3 percent) were found to have a complete (n = 9) or partial (n = 2) fusion of the sagittal suture. All patients had a normal cranial index (0.80; range, 0.72 to 0.87) and a grossly normal head shape. Only two fusions (18.2 percent) were documented by the radiologist. Cranial shape analysis performed in five of the 11 patients showed subtle phenotypic changes along the scaphocephaly spectrum in four patients, with a normal shape in the remaining case. Conclusions: Sagittal fusion is present in 3.3 percent of otherwise phenotypically normal children aged 1 to 5 years. The clinical significance of this result is unclear, but routine screening of affected patients is paramount. (Plast.

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Section: Discussionmentioning

confidence: 99%

Section: Aq2mentioning

confidence: 99%

Premature Fusion of the Sagittal Suture as an Incidental Radiographic Finding in Young Children

Manrique¹,

Mantilla-Rivas²,

Perez³

et al. 2021

Plastic &Amp; Reconstructive Surgery

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“…Among the different options available, printing in 3D the personalized optimal solution calculated for each patient would provide an intuitive and simple way to show the surgeon how to reposition optimally each bone piece. Finally, a prospective clinical validation will be necessary to translate this framework to clinical practice, in which we propose the acquisition of radiation-free 3D photography [30] to compare the surgical outcome of the proposed optimal plan and current subjective approaches. This prospective work will include the comparison of other parameters such as time of surgery, bleeding, duration of hospitalization, and complication rate.…”

Section: Discussionmentioning

confidence: 99%

Locally Affine Diffeomorphic Surface Registration and Its Application to Surgical Planning of Fronto-Orbital Advancement

Porras

Paniagua

Ensel

et al. 2018

IEEE Trans. Med. Imaging

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Metopic craniosynostosis is a condition caused by the premature fusion of the metopic cranial suture. If untreated, it can result into brain growth restriction, increased intra-cranial pressure, visual impairment, and cognitive delay. Fronto-orbital advancement is the widely accepted surgical approach to correct cranial shape abnormalities in patients with metopic craniosynostosis, but the outcome of the surgery remains very dependent on the expertise of the surgeon because of the lack of objective and personalized cranial shape metrics to target during the intervention. We propose in this paper a locally affine diffeomorphic surface registration framework to create an optimal interventional plan personalized to each patient. Our method calculates the optimal surgical plan by minimizing cranial shape abnormalities, which are quantified using objective metrics based on a normative model of cranial shapes built from 198 healthy cases. It is guided by clinical osteotomy templates for fronto-orbital advancement, and it automatically calculates how much and in which direction each bone piece needs to be translated, rotated, and/or bent. Our locally affine framework models separately the transformation of each bone piece while ensuring the consistency of the global transformation. We used our method to calculate the optimal surgical plan for 23 patients, obtaining a significant reduction of malformations (p < 0.001) between 40.38% and 50.85% in the simulated outcome of the surgery using different osteotomy templates. In addition, malformation values were within healthy ranges (p > 0.01).

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“…This correction is based on reported correction factors in the literature and confirmed by strong linear correlation (R 2 = 0.96) between ICV from computed tomography and 3D photogrammetry observed in a subset of patients who had a computed tomography scan acquired on the same day as their 3D photogrammetry image (n = 25). 9,[31][32][33] The reference plane in our pipeline is defined by the plane going through the nasion and both tragi. The centroid of these three landmarks serves as the initial anchor point and guides the registration process.…”

Section: D Photocephalometrics and Mean Cranial Shapesmentioning

confidence: 99%

Sagittal Craniosynostosis: Comparing Surgical Techniques Using 3D Photogrammetry

Abdel-Alim

Kurniawan

Mathijssen

et al. 2023

Plastic &Amp; Reconstructive Surgery

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Background: The aim of this study was to compare three surgical interventions for correction of sagittal synostosis—frontobiparietal remodeling (FBR), extended strip craniotomy (ESC), and spring-assisted correction (SAC)—based on three-dimensional (3D) photogrammetry and operation characteristics. Methods: Patients who were born between 1991 and 2019 and diagnosed with nonsyndromic sagittal synostosis who underwent FBR, ESC, or SAC and had at least one postoperative 3D photogrammetry image taken during one of six follow-up appointments until age 6 were considered for this study. Operative characteristics, postoperative complications, reinterventions, and presence of intracranial hypertension were collected. To assess cranial growth, orthogonal cranial slices and 3D photocephalometric measurements were extracted automatically and evaluated from 3D photogrammetry images. Results: A total of 322 postoperative 3D images from 218 patients were included. After correcting for age and sex, no significant differences were observed in 3D photocephalometric measurements. Mean cranial shapes suggested that postoperative growth and shape gradually normalized with higher occipitofrontal head circumference and intracranial volume values compared with normal values, regardless of type of surgery. Flattening of the vertex seems to persist after surgical correction. The authors’ cranial 3D mesh processing tool has been made publicly available as a part of this study. Conclusions: The findings suggest that until age 6, there are no significant differences among the FBR, ESC, and SAC in their ability to correct sagittal synostosis with regard to 3D photocephalometric measurements. Therefore, efforts should be made to ensure early diagnosis so that minimally invasive surgery is a viable treatment option. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.

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Intracranial Volume Quantification from 3D Photography

Cited by 9 publications

References 14 publications

Premature Fusion of the Sagittal Suture as an Incidental Radiographic Finding in Young Children

Premature Fusion of the Sagittal Suture as an Incidental Radiographic Finding in Young Children

Locally Affine Diffeomorphic Surface Registration and Its Application to Surgical Planning of Fronto-Orbital Advancement

Sagittal Craniosynostosis: Comparing Surgical Techniques Using 3D Photogrammetry

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