Reliability of Nasolabial Anthropometric Measures Using Three-Dimensional Stereophotogrammetry in Infants with Unrepaired Unilateral Cleft Lip

Tse, Raymond; Booth, Lindsay; Keys, Kari A.; Saltzman, Babette S.; Stuhaug, Erik; Kapadia, Hitesh; Heike, Carrie L.

doi:10.1097/prs.0000000000000014

Cited by 41 publications

(41 citation statements)

References 52 publications

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“…27 Anthropometric measurements were performed using 3dMD Vultus v.2.2.011 on threedimensional images that were captured at the immediate preoperative and postoperative clinic visits. The system of quantitative morphometry has been previously described 28 and is consistent with other reports. 29 We focused on measurements that have been found to be reliable on three-dimensional imaging.…”

Section: Discussionmentioning

confidence: 78%

“…29 We focused on measurements that have been found to be reliable on three-dimensional imaging. 28 These included medial lip height (sn-chpi), lateral lip height (sa-chpi), lateral lip length (ch-cphi), columellar angle, and nostril width. The columellar angle is measured from the submental view and is defined as the angle made by the columella relative to the sagittal plane of the face.…”

Section: Discussionmentioning

confidence: 99%

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Unilateral Cleft Lip Repair Using the Anatomical Subunit Approximation

Tse

Lien

2015

Plastic and Reconstructive Surgery

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Unilateral Cleft Lip Repair Using the Anatomical Subunit Approximation

Tse

Lien

2015

Plastic and Reconstructive Surgery

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“…From an ecology and evolutionary biology standpoint, perfect bilateral symmetry is defined as the optimal outcome of the development of bilateral traits in the absence of perturbations [1]. For human facial anthropometrics, perfect bilateral symmetry almost never exists, because random variations in asymmetry, within limits, have been recognized as normal and are called facial fluctuating asymmetry [2,3,4,5,6,7,8,9,10,11,12,13,14,15]. When facial asymmetry is clinically obvious (called facial asymmetric deformity, which is more commonly directional rather than fluctuating), surgical or nonsurgical treatment may be required [3,4,5].…”

Section: Introductionmentioning

confidence: 99%

Identifying Three-Dimensional Facial Fluctuating Asymmetry in Normal Pediatric Individuals: A Panel Assessment Outcome Study of Clinicians and Observers

Chou

Denadai

Chen

et al. 2019

JCM

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This study measured three-dimensional facial fluctuating asymmetry in 600 normal and healthy Taiwanese individuals (6 to 12 years old) and assessed the perceptions of increasing levels of facial fluctuating asymmetric severity by using a panel composed of 20 clinicians (surgical professionals), as well as 20 adult and 40 pre-adolescent observers. On average, this normal cohort presented a facial fluctuating asymmetry of 0.96 ± 0.52 mm, with 0.52 ± 0.05, 0.67 ± 0.09, 1.01 ± 0.10, and 1.71 ± 0.36 mm for levels I, II, III, and IV of severity, respectively. For all categories of raters, significant differences in the average symmetry–asymmetry scale values were observed, with level I < level II < level III = level IV (all p < 0.01, except for level III vs. IV comparisons with p > 0.05). For level I, pre-adolescent observers presented a significantly (p < 0.05) higher symmetry–asymmetry scale value than adult observers, with no significant (all p > 0.05) differences for other comparisons. For overall facial asymmetry and levels II, III, and IV, no significant (all p > 0.05) differences were observed. This study reveals that the normal pediatric face is asymmetric and the panel assessment of facial fluctuating asymmetry was influenced by the level of severity and the category of raters and contributes to the literature by revealing that pre-adolescent raters present a similar or higher perception of facial asymmetry than adult raters.

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“…The accuracy of the indirect anthropometric measurements made on these images has been evaluated [3], however this analysis still relies heavily on manual input. An automated computer-based system for facial analysis would greatly facilitate medical researchers.…”

Section: Introductionmentioning

confidence: 99%

Learning to Rank the Severity of Unrepaired Cleft Lip Nasal Deformity on 3D Mesh Data

Tse

Shapiro

2014

2014 22nd International Conference on Pattern Recognition

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Cleft lip is a birth defect that results in deformity of the upper lip and nose. Its severity is widely variable and the results of treatment are influenced by the initial deformity. Objective assessment of severity would help to guide prognosis and treatment. However, most assessments are subjective. The purpose of this study is to develop and test quantitative computer-based methods of measuring cleft lip severity. In this paper, a grid-patch based measurement of symmetry is introduced, with which a computer program learns to rank the severity of cleft lip on 3D meshes of human infant faces. Three computer-based methods to define the midfacial reference plane were compared to two manual methods. Four different symmetry features were calculated based upon these reference planes, and evaluated. The result shows that the rankings predicted by the proposed features were highly correlated with the ranking orders provided by experts that were used as the ground truth.

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Reliability of Nasolabial Anthropometric Measures Using Three-Dimensional Stereophotogrammetry in Infants with Unrepaired Unilateral Cleft Lip

Abstract: Diagnostic, II.

Cited by 41 publications

References 52 publications

Unilateral Cleft Lip Repair Using the Anatomical Subunit Approximation

Unilateral Cleft Lip Repair Using the Anatomical Subunit Approximation

Identifying Three-Dimensional Facial Fluctuating Asymmetry in Normal Pediatric Individuals: A Panel Assessment Outcome Study of Clinicians and Observers

Learning to Rank the Severity of Unrepaired Cleft Lip Nasal Deformity on 3D Mesh Data

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