Effect of sitting, standing, and supine body positions on facial soft tissue: detailed 3D analysis

Özsoy, Umut; Şekerci, Rahime; Öğüt, Eren

doi:10.1016/j.ijom.2015.06.005

Cited by 40 publications

(22 citation statements)

References 26 publications

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“…The Eva device or the object to be scanned must be moved until each point of interest is captured. The intra‐ and inter‐observer reliability test results of the head and neck region analyses obtained for standing, sitting, and supine body positions were over 0.9 in healthy subjects 14 . Artec Eva's average error percentage was only 1.4% in a study based on residual volume calculations in amputees 15 …”

Section: Methodsmentioning

confidence: 95%

The Effects of Clinical and Home‐based Physiotherapy Programs in Secondary Head and Neck Lymphedema

et al. 2020

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Objectives/Hypothesis To determine the effects of complex decongestive physiotherapy (CDP) and home programs on external lymphedema, staging of lymphedema, fibrosis, and three‐dimensional (3D) surface scanning and volume evaluation in head and neck lymphedema. Study Design A prospective randomized controlled study. Methods Twenty‐one patients were randomly divided into three groups: CDP (n:7), home program (n:7), and control (n:7). Assessment methods were applied at baseline and 4 weeks later for all groups. MD. Anderson Cancer Center Head and Neck Lymphedema Protocol was implemented to evaluate head and neck external lymphedema, staging of lymphedema, and fibrosis. A 3D scanner and a software were used to determine and calculate the volume of the head and neck region via 3D surface scanning. Head and neck external lymphedema and fibrosis assessment criteria were performed to evaluate visible soft tissue edema and the degree of stiffness. Results The severity and volume of lymphedema decreased in the CDP program group (P < .05). Besides, external lymphedema and fibrosis at submental region were decreased in both CDP program and home program groups (P < .05). Conclusions While the benefits of home program are limited, a CDP program may be more effective in the management of lymphedema and fibrosis in patients diagnosed with head and neck cancer. The clinical trial registration number: NCT04286698, date: 02/25/2020, retrospectively registered. Level of Evidence 4 Laryngoscope, 131:E1550–E1557, 2021

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Section: Methodsmentioning

confidence: 95%

The Effects of Clinical and Home‐based Physiotherapy Programs in Secondary Head and Neck Lymphedema

et al. 2020

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“…However, deviation near the nose was not statistically significant. Moreover, Ozsoy et al examined 3D positional differences of the facial soft tissues; they found that the midsagittal landmarks (e.g., nasion, pronasale, and subnasale) were more stable than bilateral landmarks in the sitting, standing, and supine positions 26 . The nasal region is affected less by the subject's position and the error is not statistically significant.…”

Section: Discussionmentioning

confidence: 99%

Craniofacial anthropometric investigation of relationships between the nose and nasal aperture using 3D computed tomography of Korean subjects

Ryu

Park

Kim

et al. 2020

Sci Rep

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This study investigated the relationships of morphology and locations of the nose and nasal aperture by using major craniofacial landmarks on the human skull and face for craniofacial reconstruction/approximation of Koreans. In the frontal view, the positions of bony landmarks on the skull, including the nasal aperture, were correlated with the positions of nasal landmarks vertical to the transverse plane. In profile, the positions of bony landmarks on the skull were correlated with the positions of nasal landmarks horizontal to the coronal plane. Overall, 26 of the 76 measurements demonstrated significant correlations between the corresponding landmarks on the nose and nasal aperture. Simple regression equations were produced from the results. This study showed that the nose and nasal aperture are significantly related to each other in terms of their morphology and location in Koreans. The prediction guidelines, produced as regression formulas, can be applied to craniofacial reconstruction/approximation and bio-anthropological research of Korean skulls. The study results can also be used clinically in rhinoplasty and nasal reconstruction surgery.

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“…The study is based on the gravity test -the functional test when the patient undergoes the photogrammetry scanning (Artec Eva) in vertical (standing) and horizontal (lying) position, the change of gravity vector leads to passive deformation of the soft tissues (Guryanov, 2015, Ozsoy, 2015. Before the scanning, the marker points are placed on the skin surface to register their migration.…”

Section: Methodsmentioning

confidence: 99%

Approach to 3d Analysis of Gravity Ptosis

Guryanov

Monkin²,

Monkin³

et al. 2017

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:The assessment of ptosis degree for rejuvenation procedures, the choice of following operation technique and evaluation of surgery result are based on subjective visual examination and surgeon's experience. The photogrammetric scans of 25 female patients of age 20 to 55 in vertical and supine (horizontal) position of body with placing the regular marker points on the face were analyzed. For 5 patients, also the CT data was acquired and segmentation of soft tissue was performed. Four of these patients underwent SMAS-lifting, the photogrammetry scanning was repeat 6 months after the operation. Computer vision algorithms was used for markers detection on the 3D model texture, marker were projected from texture to triangular mesh. 3D mesh models were registered with user defined anatomy points and pair selection based on markers location was done. Pairs of points on vertical and horizontal 3D models were analyzed for surface tissue mobility examination. The migration vectors of each side of the face are uniformly directed upwards and laterally. The vectors are projected at the areas of so-called ligaments demonstrate no evidence in deviation from row sequences. The volume migration is strongly correlates with the age of examined patients, on the contrary the point migration moderately correlates with age in patients of 30 to 50 years old. The analysis of migration vectors before and after the SMAS-lifting revealed no significant changes in surface points' migration. The described method allows to assess the mechanical conditions of individual face and evaluate efficacy of surgery. This approach can be used for the classification of face ptosis grade.

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Effect of sitting, standing, and supine body positions on facial soft tissue: detailed 3D analysis

Cited by 40 publications

References 26 publications

The Effects of Clinical and Home‐based Physiotherapy Programs in Secondary Head and Neck Lymphedema

The Effects of Clinical and Home‐based Physiotherapy Programs in Secondary Head and Neck Lymphedema

Craniofacial anthropometric investigation of relationships between the nose and nasal aperture using 3D computed tomography of Korean subjects

Approach to 3d Analysis of Gravity Ptosis

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