1
|
Nur Kuzan B, Yusuf Kuzan T. Evaluation of Facial Aging in Different Age and Gender Groups With Computed Tomography-Based Calvarium and Face Measurements. Dermatol Surg 2024; 50:636-642. [PMID: 38712856 DOI: 10.1097/dss.0000000000004179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
BACKGROUND The human face is a complex area formed by the combination of many different components and varies among individuals according to gender, age, and ethnicity. OBJECTIVE The aim of this study was to evaluate age-related changes in the facial and calvarial bones in a large sample of both genders. METHODS The retrospective study included nontraumatic brain computed tomography scans of 280 Turkish adults. Participants were divided into 7-decade groups with the age ranging from 20 to 89 years. Measurements of the face and calvaria were recorded, and calvarial volume was calculated. The relationship of these parameters with age and gender was examined. RESULTS Statistically significant differences were observed in all the facial and calvarial measurements, except the transverse diameter of the head, with increasing age in both genders. Regardless of age, no significant differences were found in facial and calvarial measurements between genders. In addition, there was a significant decrease in the calvarial volume in both genders after the seventh decade of life. CONCLUSION The structure of the face and calvarium continues to change and differentiate throughout life. Taking these changes into account during surgical and facial rejuvenation procedures can help predict outcomes and avoid the use of incorrect techniques.
Collapse
Affiliation(s)
- Beyza Nur Kuzan
- Department of Radiology, Kartal Dr. Lütfi Kırdar City Hospital, İstanbul, Turkey
| | - Taha Yusuf Kuzan
- Department of Radiology, Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital, İstanbul, Turkey
| |
Collapse
|
2
|
Wilke F, Matthews H, Herrick N, Dopkins N, Claes P, Walsh S. A novel approach to craniofacial analysis using automated 3D landmarking of the skull. Sci Rep 2024; 14:12381. [PMID: 38811771 PMCID: PMC11137148 DOI: 10.1038/s41598-024-63137-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 05/24/2024] [Indexed: 05/31/2024] Open
Abstract
Automatic dense 3D surface registration is a powerful technique for comprehensive 3D shape analysis that has found a successful application in human craniofacial morphology research, particularly within the mandibular and cranial vault regions. However, a notable gap exists when exploring the frontal aspect of the human skull, largely due to the intricate and unique nature of its cranial anatomy. To better examine this region, this study introduces a simplified single-surface craniofacial bone mask comprising of 6707 quasi-landmarks, which can aid in the classification and quantification of variation over human facial bone surfaces. Automatic craniofacial bone phenotyping was conducted on a dataset of 31 skull scans obtained through cone-beam computed tomography (CBCT) imaging. The MeshMonk framework facilitated the non-rigid alignment of the constructed craniofacial bone mask with each individual target mesh. To gauge the accuracy and reliability of this automated process, 20 anatomical facial landmarks were manually placed three times by three independent observers on the same set of images. Intra- and inter-observer error assessments were performed using root mean square (RMS) distances, revealing consistently low scores. Subsequently, the corresponding automatic landmarks were computed and juxtaposed with the manually placed landmarks. The average Euclidean distance between these two landmark sets was 1.5 mm, while centroid sizes exhibited noteworthy similarity. Intraclass coefficients (ICC) demonstrated a high level of concordance (> 0.988), with automatic landmarking showing significantly lower errors and variation. These results underscore the utility of this newly developed single-surface craniofacial bone mask, in conjunction with the MeshMonk framework, as a highly accurate and reliable method for automated phenotyping of the facial region of human skulls from CBCT and CT imagery. This craniofacial template bone mask expansion of the MeshMonk toolbox not only enhances our capacity to study craniofacial bone variation but also holds significant potential for shedding light on the genetic, developmental, and evolutionary underpinnings of the overall human craniofacial structure.
Collapse
Affiliation(s)
- Franziska Wilke
- Department of Biology, Indiana University Indianapolis, Indianapolis, IN, USA
| | - Harold Matthews
- Department of Human Genetics, KU Leuven, Leuven, Belgium
- Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
| | - Noah Herrick
- Department of Biology, Indiana University Indianapolis, Indianapolis, IN, USA
| | - Nichole Dopkins
- Department of Biology, Indiana University Indianapolis, Indianapolis, IN, USA
| | - Peter Claes
- Department of Human Genetics, KU Leuven, Leuven, Belgium
- Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
- Department of Electrical Engineering, ESAT/PSI, KU Leuven, Leuven, Belgium
| | - Susan Walsh
- Department of Biology, Indiana University Indianapolis, Indianapolis, IN, USA.
| |
Collapse
|
3
|
Escalante YY, Adams JN, Yassa MA, Janssen N. Age-related constraints on the spatial geometry of the brain. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.17.594753. [PMID: 38798452 PMCID: PMC11118588 DOI: 10.1101/2024.05.17.594753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Age-related structural brain changes may be better captured by assessing complex spatial geometric differences rather than isolated changes to individual regions. We applied a novel analytic method to quantify age-related changes to the spatial anatomy of the brain by measuring expansion and compression of global brain shape and the distance between cross-hemisphere homologous regions. To test how global brain shape and regional distances are affected by aging, we analyzed 2,603 structural MRIs (range: 30-97 years). Increasing age was associated with global shape expansion across inferior-anterior gradients, global compression across superior-posterior gradients, and regional expansion between frontotemporal homologues. Specific patterns of global and regional expansion and compression were further associated with clinical impairment and distinctly related to deficits in various cognitive domains. These findings suggest that changes to the complex spatial anatomy and geometry of the aging brain may be associated with reduced efficiency and cognitive dysfunction in older adults.
Collapse
|
4
|
Lorente AI, Maza-Peón S, Hidalgo-García C, López-de-Celis C, Rodríguez-Sanz J, Pérez-Bellmunt A, Maza-Frechín M. Skull fractures by glass bottles tested on cadaveric heads. Int J Legal Med 2024; 138:1165-1171. [PMID: 38112757 PMCID: PMC11003884 DOI: 10.1007/s00414-023-03133-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 11/11/2023] [Indexed: 12/21/2023]
Abstract
Head trauma is frequently related to the misuse of drinking vessels as weapons. Forensic reports usually evaluate these blunt injuries as having occurred in scenarios where the alcohol intake is high. Fatal consequences are seen in blows with glass bottles aiming at the head. To prove the outcome that a glass bottle thrown to the head could cause, three intact human cadaver heads were impacted with 1-liter glass bottles at 9.5 m/s using a drop-tower. The impact location covered the left temporal bone, sphenoid bone, and zygomatic arch. The contact between the head and the bottle was produced at an angle of 90° with (1) the valve of the bottle, (2) the bottom of the bottle, and (3) with the head rotated 20° in the frontal plane touching again with the bottom of the bottle. The three bottles remained intact after the impact, and the injury outcomes were determined by computed tomography (CT). The alterations were highly dependent on the impact orientation. The outcome varied from no injury to severe bone fractures. In the most injurious case (#3), fractures were identified in the cranial base, sphenoid bone, and zygomatic bone. These testing conditions were selected to replicate one specific legal case, as required by the plaintiff. Physical disputes with bar glassware can lead to complex combinations of blunt and sharp-force injuries. Controlled biomechanical studies can benefit forensic analyses of violence involving glassware by providing a better understanding of the underlying injury mechanisms.
Collapse
Affiliation(s)
- Ana I Lorente
- Instituto Universitario de Investigación en Ingeniería de Aragón (I3A), Universidad de Zaragoza, C/Mariano Esquillor s/n, 50018, Zaragoza, Spain.
- Center for Applied Biomechanics, University of Virginia, 4040 Lewis and Clark Drive, Charlottesville, VA, 22911, USA.
| | - Samuel Maza-Peón
- Instituto Universitario de Investigación en Ingeniería de Aragón (I3A), Universidad de Zaragoza, C/Mariano Esquillor s/n, 50018, Zaragoza, Spain
| | - César Hidalgo-García
- Researching Unit of Physiotherapy, University of Zaragoza, c/Domingo Miral s/n, 50009, Zaragoza, Spain
| | - Carlos López-de-Celis
- Universitat Internacional de Catalunya, Actium Functional Anatomy Group, Faculty of Medicine and Health Sciences, C/Josep Trueta, s/n, 08195, Sant Cugat del Valles (Barcelona), Spain
| | - Jacobo Rodríguez-Sanz
- Universitat Internacional de Catalunya, Actium Functional Anatomy Group, Faculty of Medicine and Health Sciences, C/Josep Trueta, s/n, 08195, Sant Cugat del Valles (Barcelona), Spain
| | - Albert Pérez-Bellmunt
- Universitat Internacional de Catalunya, Actium Functional Anatomy Group, Faculty of Medicine and Health Sciences, C/Josep Trueta, s/n, 08195, Sant Cugat del Valles (Barcelona), Spain
| | - Mario Maza-Frechín
- Instituto Universitario de Investigación en Ingeniería de Aragón (I3A), Universidad de Zaragoza, C/Mariano Esquillor s/n, 50018, Zaragoza, Spain
| |
Collapse
|
5
|
Iratwar S, Roy Chowdhury S, Pisulkar S, Das S, Agarwal A, Bagde A, Paikrao B, Quazi S, Basu B. Comprehensive functional outcome analysis and importance of bone remodelling on personalized cranioplasty treatment using Poly(methyl methacrylate) bone flaps. J Biomater Appl 2024; 38:975-988. [PMID: 38423069 DOI: 10.1177/08853282241235884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Cranioplasty involves the surgical reconstruction of cranial defects arising as a result of various factors, including decompressive craniectomy, cranial malformations, and brain injury due to road traffic accidents. Most of the modern decompressive craniectomies (DC) warrant a future cranioplasty surgery within 6-36 months. The conventional process of capturing the defect impression and polymethyl methacrylate (PMMA) flap fabrication results in a misfit or misalignment at the site of implantation. Equally, the intra-operative graft preparation is arduous and can result in a longer surgical time, which may compromise the functional and aesthetic outcomes. As part of a multicentric pilot clinical study, we recently conducted a cohort study on ten human subjects during 2019-2022, following the human ethics committee approvals from the participating institutes. In the current study, an important aspect of measuring the extent of bone remodelling during the time gap between decompressive craniectomy and cranioplasty was successfully evaluated. The sterilised PMMA bone flaps were implanted at the defect area during the cranioplasty surgery using titanium mini plates and screws. The mean surgery time was 90 ± 20 min, comparable to the other clinical studies on cranioplasty. No signs of intra-operative and post-operative complications, such as cerebrospinal fluid leakage, hematoma, or local and systemic infection, were clinically recorded. Importantly, aesthetic outcomes were excellent for all the patients, except in a few clinical cases, wherein the PMMA bone flap was to be carefully customized due to the remodelling of the native skull bone. The extent of physiological remodelling was evaluated by superimposing the pre-operative and post-operative CT scan data after converting the defect morphology into a 3D model. This study further establishes the safety and efficacy of a technologically better approach to fabricate patient-specific acrylic bone flaps with improved surgical outcomes. More importantly, the study outcome further demonstrates the strategy to address bone remodelling during the patient-specific implant design.
Collapse
Affiliation(s)
- Sandeep Iratwar
- Department of Neurosurgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, India
| | | | - Shweta Pisulkar
- Department of Prosthodontics, Crown & Bridge, Sharad Pawar Dental College, Datta Meghe Institute of Higher Education & Research, Wardha, India
| | - Soumitra Das
- Material Research Centre, Indian Institute of Science, Bangalore, India
| | - Akhilesh Agarwal
- Bio-Innovation cell, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, India
| | - Ashutosh Bagde
- Faculty of Engineering Technology, Biomedical Engineering/and Research Scientist, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, India
| | - Balaji Paikrao
- Department of Mechanical Engineering, Visvesvaraya National Institute of Technology, Nagpur, India
| | - Syed Quazi
- Department of Community Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Medical Sciences (Deemed to be University), Wardha, India
| | - Bikramjit Basu
- Material Research Centre, Indian Institute of Science, Bangalore, India
| |
Collapse
|
6
|
Wilke F, Matthews H, Herrick N, Dopkins N, Claes P, Walsh S. Automated 3D Landmarking of the Skull: A Novel Approach for Craniofacial Analysis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.09.579642. [PMID: 38405968 PMCID: PMC10888852 DOI: 10.1101/2024.02.09.579642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Automatic dense 3D surface registration is a powerful technique for comprehensive 3D shape analysis that has found a successful application in human craniofacial morphology research, particularly within the mandibular and cranial vault regions. However, a notable gap exists when exploring the frontal aspect of the human skull, largely due to the intricate and unique nature of its cranial anatomy. To better examine this region, this study introduces a simplified single-surface craniofacial bone mask comprising 9,999 quasi-landmarks, which can aid in the classification and quantification of variation over human facial bone surfaces. Automatic craniofacial bone phenotyping was conducted on a dataset of 31 skull scans obtained through cone-beam computed tomography (CBCT) imaging. The MeshMonk framework facilitated the non-rigid alignment of the constructed craniofacial bone mask with each individual target mesh. To gauge the accuracy and reliability of this automated process, 20 anatomical facial landmarks were manually placed three times by three independent observers on the same set of images. Intra- and inter-observer error assessments were performed using root mean square (RMS) distances, revealing consistently low scores. Subsequently, the corresponding automatic landmarks were computed and juxtaposed with the manually placed landmarks. The average Euclidean distance between these two landmark sets was 1.5mm, while centroid sizes exhibited noteworthy similarity. Intraclass coefficients (ICC) demonstrated a high level of concordance (>0.988), and automatic landmarking showing significantly lower errors and variation. These results underscore the utility of this newly developed single-surface craniofacial bone mask, in conjunction with the MeshMonk framework, as a highly accurate and reliable method for automated phenotyping of the facial region of human skulls from CBCT and CT imagery. This craniofacial template bone mask expansion of the MeshMonk toolbox not only enhances our capacity to study craniofacial bone variation but also holds significant potential for shedding light on the genetic, developmental, and evolutionary underpinnings of the overall human craniofacial structure.
Collapse
Affiliation(s)
- Franziska Wilke
- Department of Biology, Indiana University Indianapolis, Indianapolis, USA
| | - Harold Matthews
- Department of Human Genetics, KU Leuven, Leuven, Belgium
- Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
| | - Noah Herrick
- Department of Biology, Indiana University Indianapolis, Indianapolis, USA
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nichole Dopkins
- Department of Biology, Indiana University Indianapolis, Indianapolis, USA
| | - Peter Claes
- Department of Human Genetics, KU Leuven, Leuven, Belgium
- Medical Imaging Research Center, University Hospitals Leuven, Leuven, Belgium
| | - Susan Walsh
- Department of Biology, Indiana University Indianapolis, Indianapolis, USA
| |
Collapse
|
7
|
Kondou H, Morohashi R, Kimura S, Idota N, Matsunari R, Ichioka H, Bandou R, Kawamoto M, Ting D, Ikegaya H. Artificial intelligence-based forensic sex determination of East Asian cadavers from skull morphology. Sci Rep 2023; 13:21026. [PMID: 38030742 PMCID: PMC10686987 DOI: 10.1038/s41598-023-48363-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 11/25/2023] [Indexed: 12/01/2023] Open
Abstract
Identification of unknown cadavers is an important task for forensic scientists. Forensic scientists attempt to identify skeletal remains based on factors including age, sex, and dental treatment remains. Forensic scientists commonly consider skull or pelvic shape to evaluate the sex; however, these evaluations require sufficient experience and knowledge and lack objectivity and reproducibility. To ensure objectivity and reproducibility for sex evaluation, we applied a gated attention-based multiple-instance learning model to three-dimensional (3D) skull images reconstructed from postmortem head computed tomography scans. We preprocessed the images, trained with 864 training data, validated the model with 124 validation data, and evaluated the performance of our model in terms of accuracy with 246 test data. Furthermore, three forensic scientists evaluated the 3D skull images, and their performances were compared with those of the model. Our model showed an accuracy of 0.93, which was higher than that of the forensic scientists. Our model primarily focused on the entire skull owing to visualization but focused less on the areas often investigated by forensic scientists. In summary, our model may serve as a supportive tool to identify cadaver sex based on skull shape. Further studies are required to improve the model's performance.
Collapse
Affiliation(s)
- Hiroki Kondou
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan.
| | - Rina Morohashi
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Satoko Kimura
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Nozomi Idota
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Ryota Matsunari
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Hiroaki Ichioka
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Risa Bandou
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Masataka Kawamoto
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Deng Ting
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Hiroshi Ikegaya
- Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-Dori Hirokoji-Agaru, Kamigyo-Ku, Kyoto, 602-8566, Japan
| |
Collapse
|
8
|
Del Bove A, Menéndez L, Manzi G, Moggi-Cecchi J, Lorenzo C, Profico A. Mapping sexual dimorphism signal in the human cranium. Sci Rep 2023; 13:16847. [PMID: 37803023 PMCID: PMC10558540 DOI: 10.1038/s41598-023-43007-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 09/18/2023] [Indexed: 10/08/2023] Open
Abstract
The study of sexual dimorphism in human crania has important applications in the fields of human evolution and human osteology. Current, the identification of sex from cranial morphology relies on manual visual inspection of identifiable anatomical features, which can lead to bias due to user's expertise. We developed a landmark-based approach to automatically map the sexual dimorphism signal on the human cranium. We used a sex-known sample of 228 individuals from different geographical locations to identify which cranial regions are most sexually dimorphic taking into account shape, form and size. Our results, which align with standard protocols, show that glabellar and supraciliary regions, the mastoid process and the nasal region are the most sexually dimorphic traits (with an accuracy of 73%). The accuracy increased to 77% if they were considered together. Surprisingly the occipital external protuberance resulted to be not sexually dimorphic but mainly related to variations in size. Our approach here applied could be expanded to map other variable signals on skeletal morphology.
Collapse
Affiliation(s)
- Antonietta Del Bove
- Department of History and History of Arts, University Rovira i Virgli, Avinguda de Catalunya 35, 43002, Tarragona, Spain.
- Catalan Institute of Human Paleoecology and Social Evolution (IPHES-CERCA), Zona Educacional 4, Campus Sescelades URV (Edifici W3), 43007, Tarragona, Spain.
| | - Lumila Menéndez
- Department of Anthropology of the Americas, University of Bonn, Oxfordstraße 15, 53111, Bonn, Germany
- Department of Evolutionary Biology, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria
| | - Giorgio Manzi
- Department of Environmental Biology, Sapienza University of Rome, 00185, Rome, Italy
| | - Jacopo Moggi-Cecchi
- Department of Biology, University of Florence, Via del Proconsolo, 12, 50122, Florence, Italy
| | - Carlos Lorenzo
- Department of History and History of Arts, University Rovira i Virgli, Avinguda de Catalunya 35, 43002, Tarragona, Spain
- Catalan Institute of Human Paleoecology and Social Evolution (IPHES-CERCA), Zona Educacional 4, Campus Sescelades URV (Edifici W3), 43007, Tarragona, Spain
| | - Antonio Profico
- Department of Biology, University of Pisa, Via Luca Ghini, 13, 56126, Pisa, Italy
| |
Collapse
|
9
|
Awad K, Ahuja N, Yacoub AS, Brotto L, Young S, Mikos A, Aswath P, Varanasi V. Revolutionizing bone regeneration: advanced biomaterials for healing compromised bone defects. FRONTIERS IN AGING 2023; 4:1217054. [PMID: 37520216 PMCID: PMC10376722 DOI: 10.3389/fragi.2023.1217054] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/06/2023] [Indexed: 08/01/2023]
Abstract
In this review, we explore the application of novel biomaterial-based therapies specifically targeted towards craniofacial bone defects. The repair and regeneration of critical sized bone defects in the craniofacial region requires the use of bioactive materials to stabilize and expedite the healing process. However, the existing clinical approaches face challenges in effectively treating complex craniofacial bone defects, including issues such as oxidative stress, inflammation, and soft tissue loss. Given that a significant portion of individuals affected by traumatic bone defects in the craniofacial area belong to the aging population, there is an urgent need for innovative biomaterials to address the declining rate of new bone formation associated with age-related changes in the skeletal system. This article emphasizes the importance of semiconductor industry-derived materials as a potential solution to combat oxidative stress and address the challenges associated with aging bone. Furthermore, we discuss various material and autologous treatment approaches, as well as in vitro and in vivo models used to investigate new therapeutic strategies in the context of craniofacial bone repair. By focusing on these aspects, we aim to shed light on the potential of advanced biomaterials to overcome the limitations of current treatments and pave the way for more effective and efficient therapeutic interventions for craniofacial bone defects.
Collapse
Affiliation(s)
- Kamal Awad
- Bone Muscle Research Center, College of Nursing and Health Innovations, University of Texas at Arlington, Arlington, TX, United States
- Department of Materials Science and Engineering, College of Engineering, The University of Texas at Arlington, Arlington, TX, United States
| | - Neelam Ahuja
- Bone Muscle Research Center, College of Nursing and Health Innovations, University of Texas at Arlington, Arlington, TX, United States
| | - Ahmed S. Yacoub
- Bone Muscle Research Center, College of Nursing and Health Innovations, University of Texas at Arlington, Arlington, TX, United States
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Leticia Brotto
- Bone Muscle Research Center, College of Nursing and Health Innovations, University of Texas at Arlington, Arlington, TX, United States
| | - Simon Young
- Katz Department of Oral and Maxillofacial Surgery, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Antonios Mikos
- Center for Engineering Complex Tissues, Center for Excellence in Tissue Engineering, J.W. Cox Laboratory for Biomedical Engineering, Rice University, Houston, TX, United States
| | - Pranesh Aswath
- Department of Materials Science and Engineering, College of Engineering, The University of Texas at Arlington, Arlington, TX, United States
| | - Venu Varanasi
- Bone Muscle Research Center, College of Nursing and Health Innovations, University of Texas at Arlington, Arlington, TX, United States
- Department of Materials Science and Engineering, College of Engineering, The University of Texas at Arlington, Arlington, TX, United States
| |
Collapse
|
10
|
Semple BD, Panagiotopoulou O. Cranial Bone Changes Induced by Mild Traumatic Brain Injuries: A Neglected Player in Concussion Outcomes? Neurotrauma Rep 2023; 4:396-403. [PMID: 37350792 PMCID: PMC10282977 DOI: 10.1089/neur.2023.0025] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023] Open
Abstract
Mild traumatic brain injuries (TBIs), particularly when repetitive in nature, are increasingly recognized to have a range of significant negative implications for brain health. Much of the ongoing research in the field is focused on the neurological consequences of these injuries and the relationship between TBIs and long-term neurodegenerative conditions such as chronic traumatic encephalopathy and Alzheimer's disease. However, our understanding of the complex relationship between applied mechanical force at impact, brain pathophysiology, and neurological function remains incomplete. Past research has shown that mild TBIs, even below the threshold that results in cranial fracture, induce changes in cranial bone structure and morphology. These structural and physiological changes likely have implications for the transmission of mechanical force into the underlying brain parenchyma. Here, we review this evidence in the context of the current understanding of bone mechanosensitivity and the consequences of TBIs or concussions. We postulate that heterogeneity of the calvarium, including differing bone thickness attributable to past impacts, age, or individual variability, may be a modulator of outcomes after subsequent TBIs. We advocate for greater consideration of cranial responses to TBI in both experimental and computer modeling of impact biomechanics, and raise the hypothesis that calvarial bone thickness represents a novel biomarker of brain injury vulnerability post-TBI.
Collapse
Affiliation(s)
- Bridgette D. Semple
- Department of Neuroscience, Monash University, Prahran, Victoria, Australia
- Department of Neurology, Alfred Health, Prahran, Victoria, Australia
- Department of Medicine (Royal Melbourne Hospital), University of Melbourne, Parkville, Victoria, Australia
| | - Olga Panagiotopoulou
- Monash Biomedicine Discovery Institute, Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
| |
Collapse
|
11
|
Özen KE, Yeşil HK, Malas MA. Morphometric and morphological evaluation of temporozygomatic suture anatomy in dry adult human skulls. Anat Sci Int 2023; 98:249-259. [PMID: 36374372 DOI: 10.1007/s12565-022-00694-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/02/2022] [Indexed: 11/16/2022]
Abstract
This study aims to evaluate the position, morphometric, and morphological features of the temporozygomatic suture (TZS) located on the zygomatic arch (ZA) in dry adult human skulls. Thirty-two crania were evaluated. Measurements for the TZS were carried out using the ImageJ software. Morphometric measurements were carried out bilaterally in 23 crania and unilaterally in 9 crania (right: 4, left: 5). A total of 55 TZSs were analyzed. Localization of the TZS was determined according to the reference landmarks on the ZA. Morphologic features of the TZS evaluated in terms of "joint shape type" and "suture margin pattern". Descriptive statistics of the morphometric and morphologic variables were calculated. A statistically significant difference between the right and left sides was observed for the localization of the TZS (p < 0.05). TZS is located more anteriorly on the left side than the right side. Based on the "joint shape type", four types of TZS were observed: Type 1 (angular) (34.55%), Type 2 (curvy) (34.55%), Type 3 (oblique) (14.55%), Type 4 (horizontal) (16.36%). Based on the "suture margin pattern", five types of TZS were observed: Type A (linear) (12.73%), Type B (denticulate) (34.55%), Type C (serrated) (23.64%), Type D (mixt) (21.82%), Type E (fused) (7.27%). No significant association between the type and lateralization was found for both morphologic classifications. To the best of our knowledge, this is the first published report regarding the localization and morphologic classification of the TZS in adult human crania. Considering the TZS with its morphometric and morphological features may contribute to clinical or forensic medical evaluations.
Collapse
Affiliation(s)
- Kemal Emre Özen
- Department of Anatomy, Faculty of Medicine, İzmir Kâtip Çelebi University, Balatçık Mah., Havaalanı Şosesi Cad., No: 33/2, 35620, Çiğli/İzmir, Turkey.
| | - Hatice Kübra Yeşil
- Department of Anatomy, Faculty of Medicine, İzmir Kâtip Çelebi University, Balatçık Mah., Havaalanı Şosesi Cad., No: 33/2, 35620, Çiğli/İzmir, Turkey
| | - Mehmet Ali Malas
- Department of Anatomy, Faculty of Medicine, İzmir Kâtip Çelebi University, Balatçık Mah., Havaalanı Şosesi Cad., No: 33/2, 35620, Çiğli/İzmir, Turkey
| |
Collapse
|
12
|
Approximating subject-specific brain injury models via scaling based on head-brain morphological relationships. Biomech Model Mechanobiol 2023; 22:159-175. [PMID: 36201071 DOI: 10.1007/s10237-022-01638-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 09/07/2022] [Indexed: 11/02/2022]
Abstract
Most human head/brain models represent a generic adult male head/brain. They may suffer in accuracy when investigating traumatic brain injury (TBI) on a subject-specific basis. Subject-specific models can be developed from neuroimages; however, neuroimages are not typically available in practice. In this study, we establish simple and elegant regression models between brain outer surface morphology and head dimensions measured from neuroimages along with age and sex information (N = 191; 141 males and 50 females with age ranging 14-25 years). The regression models are then used to approximate subject-specific brain models by scaling a generic counterpart, without using neuroimages. Model geometrical accuracy is assessed using adjusted [Formula: see text] and absolute percentage error (e.g., 0.720 and 3.09 ± 2.38%, respectively, for brain volume when incorporating tragion-to-top). For a subset of 11 subjects (from smallest to largest in brain volume), impact-induced brain strains are compared with those from "morphed models" derived from neuroimage-based mesh warping. We find that regional peak strains from the scaled subject-specific models are comparable to those of the morphed counterparts but could be considerably different from those of the generic model (e.g., linear regression slope of 1.01-1.03 for gray and white matter regions versus 1.16-1.19, or up to ~ 20% overestimation for the smallest brain studied). These results highlight the importance of incorporating brain morphological variations in impact simulation and demonstrate the feasibility of approximating subject-specific brain models without neuroimages using age, sex, and easily measurable head dimensions. The scaled models may improve subject specificity for future TBI investigations.
Collapse
|
13
|
Zhang J, Treyer V, Sun J, Zhang C, Gietl A, Hock C, Razansky D, Nitsch RM, Ni R. Automatic analysis of skull thickness, scalp-to-cortex distance and association with age and sex in cognitively normal elderly. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.19.524484. [PMID: 36711717 PMCID: PMC9882276 DOI: 10.1101/2023.01.19.524484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Personalized neurostimulation has been a potential treatment for many brain diseases, which requires insights into brain/skull geometry. Here, we developed an open source efficient pipeline BrainCalculator for automatically computing the skull thickness map, scalp-to-cortex distance (SCD), and brain volume based on T 1 -weighted magnetic resonance imaging (MRI) data. We examined the influence of age and sex cross-sectionally in 407 cognitively normal older adults (71.9±8.0 years, 60.2% female) from the ADNI. We demonstrated the compatibility of our pipeline with commonly used preprocessing packages and found that BrainSuite Skullfinder was better suited for such automatic analysis compared to FSL Brain Extraction Tool 2 and SPM12- based unified segmentation using ground truth. We found that the sphenoid bone and temporal bone were thinnest among the skull regions in both females and males. There was no increase in regional minimum skull thickness with age except in the female sphenoid bone. No sex difference in minimum skull thickness or SCD was observed. Positive correlations between age and SCD were observed, faster in females (0.307%/y) than males (0.216%/y) in temporal SCD. A negative correlation was observed between age and whole brain volume computed based on brain surface (females -1.031%/y, males -0.998%/y). In conclusion, we developed an automatic pipeline for MR-based skull thickness map, SCD, and brain volume analysis and demonstrated the sex-dependent association between minimum regional skull thickness, SCD and brain volume with age. This pipeline might be useful for personalized neurostimulation planning.
Collapse
Affiliation(s)
- Junhao Zhang
- Institute for Regenerative Medicine, University of Zurich, 8952 Zurich, Switzerland
- Institute for Biomedical Engineering, ETH Zurich & University of Zurich, 8093 Zurich, Switzerland
| | - Valerie Treyer
- Institute for Regenerative Medicine, University of Zurich, 8952 Zurich, Switzerland
- Department of Nuclear Medicine, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - Junfeng Sun
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Chencheng Zhang
- Department of Neurosurgery, Center for Functional Neurosurgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Anton Gietl
- Institute for Regenerative Medicine, University of Zurich, 8952 Zurich, Switzerland
| | - Christoph Hock
- Institute for Regenerative Medicine, University of Zurich, 8952 Zurich, Switzerland
- Neurimmune, Schlieren, Switzerland
| | - Daniel Razansky
- Institute for Biomedical Engineering, ETH Zurich & University of Zurich, 8093 Zurich, Switzerland
| | - Roger M Nitsch
- Institute for Regenerative Medicine, University of Zurich, 8952 Zurich, Switzerland
- Neurimmune, Schlieren, Switzerland
| | - Ruiqing Ni
- Institute for Regenerative Medicine, University of Zurich, 8952 Zurich, Switzerland
- Institute for Biomedical Engineering, ETH Zurich & University of Zurich, 8093 Zurich, Switzerland
- Zentrum für Neurowissenschaften Zurich, Zurich, Switzerland
| |
Collapse
|
14
|
Atkova EL, Yartsev VD, Ekaterinchev MA, Shkolyarenko NY. [Biometric characteristics of the lacrimal passages in healthy individuals and in patients with nasolacrimal duct obstruction]. Vestn Oftalmol 2023; 139:20-26. [PMID: 37942593 DOI: 10.17116/oftalma202313905120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Despite an obvious interest in the processes occurring in the lacrimal passages in their obstruction, there is few articles analyzing their biometric parameters. PURPOSE The study investigates the biometric characteristics of the lacrimal passages in healthy individuals and in patients with nasolacrimal duct obstruction. MATERIAL AND METHODS The study included 81 cases of partial nasolacrimal duct obstruction and 38 cases without tear drainage insufficiency. All patients underwent computed tomography with dacryocystography. Analysis of the biometric parameters involved calculation of the length, volume, and average sectional area of the nasolacrimal duct and the nasolacrimal bony canal. The ratio R4/16l was calculated (where R is the radius of the nasolacrimal duct; l is the length of the nasolacrimal duct). The normality of values was assessed using the Shapiro-Wilk test. Intergroup differences were assessed using the Mann-Whitney test and t-statistics for independent samples. Correlation analysis was performed according to the Spearman method. ROC analysis was carried out. Differences were considered significant at p≤0.05. RESULTS There were significant differences in the volume (p=0.004) and the average sectional area of the nasolacrimal duct (p=0.014), as well as in the length of the nasolacrimal canal (p=0.034). Relationships were established between the age of patients without tear drainage insufficiency and the length of the nasolacrimal canal (p=0.042); the length of the nasolacrimal canal and the volume of the nasolacrimal duct (p=0.034), as well as the volume of the nasolacrimal duct and the nasolacrimal canal in partial nasolacrimal duct obstruction (p=0.017). The AUC of the R4/16l ratio in the ROC analysis was 0.653 (p=0.007). CONCLUSION In addition to the obvious differences, it was found that the length of the nasolacrimal bony canal significantly differed in the subjects of both study groups. We considered the tear ducts as a hydrodynamic system obeying Poiseuille's law, so we calculated the ratio R4/16l. The value of this ratio varied (p=0.016), and the ROC analysis showed high sensitivity and specificity of the criterion. This makes it possible to use this ratio as a diagnostic criterion for partial nasolacrimal duct obstruction.
Collapse
Affiliation(s)
- E L Atkova
- Krasnov Research Institute of Eye Diseases, Moscow, Russia
| | - V D Yartsev
- Krasnov Research Institute of Eye Diseases, Moscow, Russia
| | | | | |
Collapse
|
15
|
Rowbotham SK, Mole CG, Tieppo D, Blaszkowska M, Cordner SM, Blau S. Average thickness of the bones of the human neurocranium: development of reference measurements to assist with blunt force trauma interpretations. Int J Legal Med 2023; 137:195-213. [PMID: 35486199 DOI: 10.1007/s00414-022-02824-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 03/31/2022] [Indexed: 01/10/2023]
Abstract
The accurate interpretation of a blunt force head injury relies on an understanding of the case circumstances (extrinsic variables) and anatomical details of the individual (intrinsic variables). Whilst it is often possible to account for many of these variables, the intrinsic variable of neurocranial thickness is difficult to account for as data for what constitutes 'normal' thickness is limited. The aim of this study was to investigate the effects of age, sex and ancestry on neurocranial thickness, and develop reference ranges for average neurocranial thickness in the context of those biological variables. Thickness (mm) was measured at 20 points across the frontal, left and right parietals, left and right temporals and occipital bones. Measurements were taken from post-mortem computed tomography scans of 604 individuals. Inferential statistics assessed how age, sex and ancestry affected thickness and descriptive statistics established thickness means. Mean thickness ranged from 2.11 mm (temporal squama) to 19.19 mm (petrous portion). Significant differences were noted in thickness of the frontal and temporal bones when age was considered, all bones when sex was considered and the, right parietal, left and right temporal and occipital bones when ancestry was considered. Furthermore, significant interactions in thickness were seen between age and sex in the frontal bone, ancestry and age in the temporal bone, ancestry and sex in the temporal bone, and age, sex and ancestry in the occipital bone. Given the assorted influence of the biological variables, reference measurement ranges for average thickness incorporated these variables. Such reference measurements allow forensic practitioners to identify when a neurocranial bone is of normal, or abnormal, thickness.
Collapse
Affiliation(s)
- Samantha K Rowbotham
- Victorian Institute of Forensic Medicine, 65 Kavanagh St, Southbank, VIC, 3006, Australia. .,Department of Forensic Medicine, School of Public Health and Preventative Medicine, Monash University, 65 Kavanagh St, Southbank, VIC, 3006, Australia.
| | - Calvin G Mole
- Division of Forensic Medicine and Toxicology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory, Cape Town, 7925, South Africa
| | - Diana Tieppo
- Department of Forensic Medicine, School of Public Health and Preventative Medicine, Monash University, 65 Kavanagh St, Southbank, VIC, 3006, Australia
| | - Magda Blaszkowska
- Centre for Forensic Anthropology, Faculty of Arts, Business, Law and Education, University of Western Australia, 35 Stirling Hwy, Crawley, WA, 6009, Australia
| | - Stephen M Cordner
- Victorian Institute of Forensic Medicine, 65 Kavanagh St, Southbank, VIC, 3006, Australia.,Department of Forensic Medicine, School of Public Health and Preventative Medicine, Monash University, 65 Kavanagh St, Southbank, VIC, 3006, Australia
| | - Soren Blau
- Victorian Institute of Forensic Medicine, 65 Kavanagh St, Southbank, VIC, 3006, Australia.,Department of Forensic Medicine, School of Public Health and Preventative Medicine, Monash University, 65 Kavanagh St, Southbank, VIC, 3006, Australia
| |
Collapse
|
16
|
Abstract
BACKGROUND Previous studies have attempted to explain age-related changes to the orbit in isolation, often producing conflicting results. The authors used highly accurate imaging software to analyze computed tomographic scans to characterize changes related to age objectively. METHODS In this case-control study, patients seen in an ear, nose, and throat clinic were screened for study entry. Male and female participants were divided into two age groups (20 to 30 years and 60 to 75 years). Primary outcomes included measurement of bony orbital dimensions, volume of soft tissues (muscle and fat volume), and anterior globe position. Three-dimensional reconstructions were created of each orbit allowing these measurements. The generalized estimating equation was used so that both orbits from each patient could be included without any bias. RESULTS The final sample included 240 orbits from 120 patients. There were 30 patients in each age group. Among female participants, the bony orbital volume ( p < 0.05), fat volume ( p < 0.01), and central width ( p < 0.001) of the bony orbit increased with age. The anterior globe position was significantly greater in older female participants ( p < 0.01). For male participants, the fat volume ( p < 0.0001) and central height ( p < 0.03) increased with age; the lateral rim moved posteriorly with age ( p < 0.007). The anterior globe position was not different between the age groups in male participants ( p = 0.56). CONCLUSION The female bony orbit expands with age and is associated with a more anterior position of the globe; the male bony orbital volume remains the same and the lateral rim moves posteriorly.
Collapse
|
17
|
Wei A, Wang J, Liu J, Jones MLH, Hu J. A parametric head geometry model accounting for variation among adolescent and young adult populations. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 220:106805. [PMID: 35439654 DOI: 10.1016/j.cmpb.2022.106805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/24/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND AND OBJECTIVE Modeling the size and shape of human skull and scalp is essential for head injury assessment, design of helmets and head-borne equipment, and many other safety applications. Finite element (FE) head models are important tools to assess injury risks and design personal protective equipment. However, current FE head models are mainly developed based on the midsize male, failing to account for the significant morphological variation that exists in the skull and brain. The objective of this study was to develop a statistical head geometry model that accounts for size and shape variations among the adolescent and young adult population. METHODS To represent subject-specific geometry using a homologous mesh, threshold-based segmentation of head CT scans of 101 subjects between 14 and 25 years of age was performed, followed by landmarking, mesh morphing, and projection. Skull and scalp statistical geometry models were then developed as functions of age, sex, stature, BMI, head length, head breadth, and tragion-to-top of head using generalized Procrustes analysis (GPA), principal component analysis (PCA) and multivariate regression analysis. RESULTS The statistical geometry models account for a high percentage of morphological variations in scalp geometry (R2=0.63), outer skull geometry (R2=0.66), inner skull geometry (R2=0.55), and skull thickness (error < 1 mm) CONCLUSIONS: Skull and scalp statistical geometry models accounts for size and shape variations among the adolescent and young adult population were developed as functions of subject covariates. These models may serve as the geometric basis to develop individualized head FE models for injury assessment and design of head-borne equipment.
Collapse
Affiliation(s)
- Albert Wei
- University of Michigan Transportation Research Institute, Ann Arbor, MI, United States; Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Julie Wang
- University of Michigan Transportation Research Institute, Ann Arbor, MI, United States; Department of Computer Science Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Jiacheng Liu
- University of Michigan Transportation Research Institute, Ann Arbor, MI, United States; Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Monica L H Jones
- University of Michigan Transportation Research Institute, Ann Arbor, MI, United States
| | - Jingwen Hu
- University of Michigan Transportation Research Institute, Ann Arbor, MI, United States; Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, United States.
| |
Collapse
|
18
|
Abstract
OBJECTIVE Piriform aperture, paranasal sinuses, and the cranium dimensions were compared with each other and we investigated the alterations depending on the age and gender in these structures. Before the endoscopic sinus surgery, anatomic variations in sinusoidal region and the occurring differences should be considered. The detection of these variations plays important roles in the prevention of complications which may happen in surgery or in obtaining a successful surgical result. MATERIALS AND METHODS Piriform aperture maximum width, frontal sinuses, sphenoidal sinuses, maxillary sinuses, and cranium widths and height length was measured from the regions that we were determined. Three hundred ninety three cases' computed tomography images were compared. The individuals without any head trauma, pathology, and surgical history in sinusoidal region were analyzed retrospectively. The detected measurements were studied among the paranasal sinuses, piriform aperture, and calvaria dimensions. RESULTS It was observed that the dimensions of paranasal sinuses were decreased and the dimension of piriform aperture was increased depending on age. In all individuals, a relationship in positive direction in a manner that piriform aperture width increases as the size of the cranium width increases. Morphologic alterations take place in the dimensions of paranasal sinuses as a result of bone deformations occurring in the bone structure depending age and gender in adult individuals.
Collapse
|
19
|
Lin Z, Kim E, Ahmed M, Han G, Simmons C, Redhead Y, Bartlett J, Pena Altamira LE, Callaghan I, White MA, Singh N, Sawiak S, Spires-Jones T, Vernon AC, Coleman MP, Green J, Henstridge C, Davies JS, Cash D, Sreedharan J. MRI-guided histology of TDP-43 knock-in mice implicates parvalbumin interneuron loss, impaired neurogenesis and aberrant neurodevelopment in amyotrophic lateral sclerosis-frontotemporal dementia. Brain Commun 2021; 3:fcab114. [PMID: 34136812 PMCID: PMC8204366 DOI: 10.1093/braincomms/fcab114] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/13/2021] [Accepted: 04/17/2021] [Indexed: 01/01/2023] Open
Abstract
Amyotrophic lateral sclerosis and frontotemporal dementia are overlapping diseases in which MRI reveals brain structural changes in advance of symptom onset. Recapitulating these changes in preclinical models would help to improve our understanding of the molecular causes underlying regionally selective brain atrophy in early disease. We therefore investigated the translational potential of the TDP-43Q331K knock-in mouse model of amyotrophic lateral sclerosis-frontotemporal dementia using MRI. We performed in vivo MRI of TDP-43Q331K knock-in mice. Regions of significant volume change were chosen for post-mortem brain tissue analyses. Ex vivo computed tomography was performed to investigate skull shape. Parvalbumin neuron density was quantified in post-mortem amyotrophic lateral sclerosis frontal cortex. Adult mutants demonstrated parenchymal volume reductions affecting the frontal lobe and entorhinal cortex in a manner reminiscent of amyotrophic lateral sclerosis-frontotemporal dementia. Subcortical, cerebellar and brain stem regions were also affected in line with observations in pre-symptomatic carriers of mutations in C9orf72, the commonest genetic cause of both amyotrophic lateral sclerosis and frontotemporal dementia. Volume loss was also observed in the dentate gyrus of the hippocampus, along with ventricular enlargement. Immunohistochemistry revealed reduced parvalbumin interneurons as a potential cellular correlate of MRI changes in mutant mice. By contrast, microglia was in a disease activated state even in the absence of brain volume loss. A reduction in immature neurons was found in the dentate gyrus, indicative of impaired adult neurogenesis, while a paucity of parvalbumin interneurons in P14 mutant mice suggests that TDP-43Q331K disrupts neurodevelopment. Computerized tomography imaging showed altered skull morphology in mutants, further suggesting a role for TDP-43Q331K in development. Finally, analysis of human post-mortem brains confirmed a paucity of parvalbumin interneurons in the prefrontal cortex in sporadic amyotrophic lateral sclerosis and amyotrophic lateral sclerosis linked to C9orf72 mutations. Regional brain MRI changes seen in human amyotrophic lateral sclerosis-frontotemporal dementia are recapitulated in TDP-43Q331K knock-in mice. By marrying in vivo imaging with targeted histology, we can unravel cellular and molecular processes underlying selective brain vulnerability in human disease. As well as helping to understand the earliest causes of disease, our MRI and histological markers will be valuable in assessing the efficacy of putative therapeutics in TDP-43Q331K knock-in mice.
Collapse
Affiliation(s)
- Ziqiang Lin
- Department of Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King’s College London, London SE5 9RT, UK
- West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Eugene Kim
- BRAIN Centre (Biomarker Research And Imaging for Neuroscience), Department of Neuroimaging, IoPPN, King’s College London, London SE5 9NU, UK
| | - Mohi Ahmed
- Centre for Craniofacial and Regenerative Biology, Floor 27 Tower Wing, Guy’s Hospital, King’s College London, London SE1 9RT, UK
| | - Gang Han
- Molecular Neurobiology Group, Institute of Life Sciences, School of Medicine, Swansea University, Swansea SA2 8PP, UK
| | - Camilla Simmons
- BRAIN Centre (Biomarker Research And Imaging for Neuroscience), Department of Neuroimaging, IoPPN, King’s College London, London SE5 9NU, UK
| | - Yushi Redhead
- Centre for Craniofacial and Regenerative Biology, Floor 27 Tower Wing, Guy’s Hospital, King’s College London, London SE1 9RT, UK
| | - Jack Bartlett
- Molecular Neurobiology Group, Institute of Life Sciences, School of Medicine, Swansea University, Swansea SA2 8PP, UK
| | - Luis Emiliano Pena Altamira
- Department of Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King’s College London, London SE5 9RT, UK
| | - Isobel Callaghan
- Department of Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King’s College London, London SE5 9RT, UK
| | - Matthew A White
- Department of Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King’s College London, London SE5 9RT, UK
| | - Nisha Singh
- BRAIN Centre (Biomarker Research And Imaging for Neuroscience), Department of Neuroimaging, IoPPN, King’s College London, London SE5 9NU, UK
- School of Biomedical Engineering & Imaging Sciences, St Thomas' Hospital, King's College London, 4th floor Lambeth Wing, London SE1 7EH, UK
| | - Stephen Sawiak
- Department of Clinical Neurosciences, Cambridge University, Cambridge CB2 0QQ, UK
| | - Tara Spires-Jones
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
| | - Anthony C Vernon
- Department of Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King’s College London, London SE5 9RT, UK
| | | | - Jeremy Green
- Centre for Craniofacial and Regenerative Biology, Floor 27 Tower Wing, Guy’s Hospital, King’s College London, London SE1 9RT, UK
| | - Christopher Henstridge
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH8 9XD, UK
- Division of Systems Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
| | - Jeffrey S Davies
- Molecular Neurobiology Group, Institute of Life Sciences, School of Medicine, Swansea University, Swansea SA2 8PP, UK
| | - Diana Cash
- BRAIN Centre (Biomarker Research And Imaging for Neuroscience), Department of Neuroimaging, IoPPN, King’s College London, London SE5 9NU, UK
| | - Jemeen Sreedharan
- Department of Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King’s College London, London SE5 9RT, UK
| |
Collapse
|
20
|
Velemínská J, Fleischmannová N, Suchá B, Dupej J, Bejdová Š, Kotěrová A, Brůžek J. Age-related differences in cranial sexual dimorphism in contemporary Europe. Int J Legal Med 2021; 135:2033-2044. [PMID: 33649866 DOI: 10.1007/s00414-021-02547-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/17/2021] [Indexed: 11/26/2022]
Abstract
Biomechanical load and hormonal levels tended to change just like the soft and skeletal tissue of the elderly with age. Although aging in both sexes shared common traits, it was assumed that there would be a reduction of sexual dimorphism in aged individuals. The main goals of this study were (1) to evaluate age-related differences in cranial sexual dimorphism during senescence, (2) to determine age-related differences in female and male skulls separately, and (3) to compare skull senescence in Czech and French adult samples as discussed by Musilová et al. (Forensic Sci Int 269:70-77, 2016). The cranial surface was analyzed using coherent point drift-dense correspondence analysis. The study sample consisted of 245 CT scans of heads from recent Czech (83 males and 59 females) and French (52 males and 51 females) individuals. Virtual scans in the age range from 18 to 92 years were analyzed using geometric morphometrics. The cranial form was significantly greater in males in all age categories. After size normalization, sexual dimorphism of the frontal, occipital, and zygomatic regions tended to diminish in the elderly. Its development during aging was caused by morphological changes in both female and male skulls but secular changes must also be taken into account. The most notable aging changes were the widening of the neurocranium and the retrusion of the face, including the forehead, especially after the age of 60 in both sexes. Sexual dimorphism was similar between the Czech and French samples but its age-related differences were partially different because of the population specificity. Cranial senescence was found to degrade the accuracy of sex classification (92-94%) in the range of 2-3%.
Collapse
Affiliation(s)
- Jana Velemínská
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Viničná 7, 128 43, Prague, Czech Republic
| | - Nikola Fleischmannová
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Viničná 7, 128 43, Prague, Czech Republic
| | - Barbora Suchá
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Viničná 7, 128 43, Prague, Czech Republic
| | - Jan Dupej
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Viničná 7, 128 43, Prague, Czech Republic
- Department of Software and Computer Science Education, Faculty of Mathematics and Physics, Charles University, 118 00, Prague, Czech Republic
| | - Šárka Bejdová
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Viničná 7, 128 43, Prague, Czech Republic
| | - Anežka Kotěrová
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Viničná 7, 128 43, Prague, Czech Republic.
| | - Jaroslav Brůžek
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Viničná 7, 128 43, Prague, Czech Republic
| |
Collapse
|
21
|
Siciliano-Martina L, Light JE, Lawing AM. Cranial morphology of captive mammals: a meta-analysis. Front Zool 2021; 18:4. [PMID: 33485360 PMCID: PMC7825229 DOI: 10.1186/s12983-021-00386-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/14/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Captive facilities such as zoos are uniquely instrumental in conservation efforts. To fulfill their potential as bastions for conservation, zoos must preserve captive populations as appropriate proxies for their wild conspecifics; doing so will help to promote successful reintroduction efforts. Morphological changes within captive populations may be detrimental to the fitness of individual animals because these changes can influence functionality; thus, it is imperative to understand the breadth and depth of morphological changes occurring in captive populations. Here, we conduct a meta-analysis of scientific literature reporting comparisons of cranial measures between captive and wild populations of mammals. We investigate the pervasiveness of cranial differences and whether cranial morphological changes are associated with ecological covariates specific to individual species, such as trophic level, dietary breadth, and home range size. RESULTS Cranial measures of skull length, skull width, and the ratio of skull length-to-width differed significantly between many captive and wild populations of mammals reported in the literature. Roughly half of captive populations differed from wild populations in at least one cranial measure, although the degree of changes varied. Carnivorous species with a limited dietary breadth displayed the most consistent changes associated with skull widening. Species with a more generalized diet displayed less morphological changes in captivity. CONCLUSIONS Wild and captive populations of mammals differed in cranial morphology, but the nature and magnitude of their cranial differences varied considerably across taxa. Although changes in cranial morphology occur in captivity, specific changes cannot be generalized for all captive mammal populations. The nature of cranial changes in captivity may be specific to particular taxonomic groups; thus, it may be possible to establish expectations across smaller taxonomic units, or even disparate groups that utilize their cranial morphology in a similar way. Given that morphological changes occurring in captive environments like zoos have the potential to limit reintroduction success, our results call for a critical evaluation of current captive husbandry practices to prevent unnecessary morphological changes.
Collapse
Affiliation(s)
- Leila Siciliano-Martina
- Interdisciplinary Program in Ecology & Evolutionary Biology, Texas A&M University, College Station, TX, 77843, USA.
- Department of Biology, Texas State University, San Marcos, TX, 78666, USA.
| | - Jessica E Light
- Interdisciplinary Program in Ecology & Evolutionary Biology, Texas A&M University, College Station, TX, 77843, USA
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX, 77843, USA
| | - A Michelle Lawing
- Interdisciplinary Program in Ecology & Evolutionary Biology, Texas A&M University, College Station, TX, 77843, USA
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX, 77843, USA
| |
Collapse
|
22
|
de Souza Ferreira MR, Galvão APO, de Queiroz Lima PTMB, de Queiroz Lima AMB, Magalhães CP, Valença MM. The parietal foramen anatomy: studies using dry skulls, cadaver and in vivo MRI. Surg Radiol Anat 2021; 43:1159-1168. [PMID: 33399919 DOI: 10.1007/s00276-020-02650-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/05/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The aim of this study was to describe the anatomical features encountered in the parietal foramen in a series of 178 human bones and 123 head MRI examinations. A cadaveric specimen was also dissected to demonstrate the trajectory of a superficial scalp vein through the parietal foramen as far as the dura mater. A literature review was performed regarding prevalence of parietal foramen in different populations. METHODS Totally, 178 paired adult bones were used to investigate the presence, shape and number of the parietal foramina. In addition, 123 brain MRI examinations were also studied. RESULTS The parietal foramina were encountered in 75/89 (84.3%) skulls [32/38 (84.2%) in women vs. 43/51 (84.3%) in men, p > 0.05]. The parietal foramen was present bilaterally in 44.73% of females and 54.9% of males. Regarding unilaterality of the parietal foramen, a right or left laterality was observed in female 21% right versus 18% left; and 16% versus 14% (left) in males (p > 0.05). The accessory parietal foramen was present in the right parietal in 2.6% and in 7.9% on the left side of the females, while 5.9% and 3.9% of the males on the right or left sides, respectively. The parietal foramina located in the proximity of the sagittal suture (male 7.1 ± 2.5 mm vs. female, 7.4 ± 2.7 mm). There was a positive correlation between the right and left parietal foramina regarding the distance from the median line. The distance from a foramen to the contralateral one was 16 ± 4 mm in men and 18 ± 5 mm in women, respectively (p > 0.05). CONCLUSION No major differences were encountered between sexes regarding the anatomical features of parietal foramen.
Collapse
Affiliation(s)
- Maria Rosana de Souza Ferreira
- Departamento of Anatomy, Academic Center of Vitória of Santo Antão, Vitória, Pernambuco, Brazil. .,Neurosurgery Unit, Federal University of Pernambuco, Recife, Pernambuco, Brazil. .,Departamento of Anatomy and Neurosurgery Unit, Federal University of Pernambuco, Recife, Pernambuco, Brazil.
| | - André Pukey Oliveira Galvão
- Departamento of Anatomy, Academic Center of Vitória of Santo Antão, Vitória, Pernambuco, Brazil.,Vitória de Santo Antão, Facol University Center, Vitória, Pernambuco, Brazil
| | | | | | | | | |
Collapse
|
23
|
Sungura R, Mpolya E, Spitsbergen JM, Onyambu C, Sauli E, Vianney JM. Novel multi-linear quantitative brain volume formula for manual radiological evaluation of brain atrophy. Eur J Radiol Open 2020; 7:100281. [PMID: 33241090 PMCID: PMC7674282 DOI: 10.1016/j.ejro.2020.100281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 10/20/2020] [Indexed: 01/18/2023] Open
Abstract
Objectives The brain atrophy commonly occurs in elderly and in some childhood conditions making the techniques for quantifying brain volume needful. Since the automated quantitative methods of brain volume assessment have limited availability in developing countries, it was the purpose of this study to design and test an alternative formula that is applicable to all healthcare levels. Methods The multi-linear diagonal brain fraction formula (DBF) was designed from dimensions of brain relative to skull and ventricles. To test a developed formula, a total of 347 subjects aged between 0 and 18 years who had brain CT scans performed recruited and subjected to a systematic measurement of their brains in a diagonal brain fashion. Results Out of 347 patients evaluated, 62 subjects (17.8 %) were found to be cases of brain atrophy. The three radiological measurements which included sulcal width (SW), ventricular width (VW) and Evans Index (EI) were concurrently performed. SW and VW showed good age correlation. Similar tests were extended to diagonal brain fraction (DBF) and skull vertical horizontal ratio (VHR) in which DBF showed significant age correlation. Conclusions The DBF formula shows significant ability of differentiating changes of brain volume suggesting that it can be utilized as an alternative brain fraction quantification method bearing technical simplicity in assessing gross brain volume. Advances in knowledge The designed formula is unique in that it captures even the possible asymmetrical volume loss of brain through diagonal lines. The proposed scores being in term of ratios give four grades of brain atrophy.
Collapse
Key Words
- BIANCA, Brain Intensity Abnormality Classification Algorithm
- BPF, Brain parenchymal fraction
- Brain atrophy
- Brain volume
- CD, Compact disc
- CSF, Cerebral spina fluid
- CT, Computerized tomography
- DBF, Diagonal brain fraction
- DVD, Digital versatile disc
- EI, Evans index
- KNCHREC, Kibong’oto, Nelson Mandela and Cedha Research and Ethical Committee
- MRI, Magnetic resonance imaging
- MTA, medial temporal atrophy
- Neuroimaging
- Quantification
- SW, Sulcal width
- VBM, Volume based morphometry
- VHR, Vertical-horizontal ratio
- VW, Ventricular width
Collapse
Affiliation(s)
- R Sungura
- Department of Health and Biomedical Sciences, School of Life Science and Bioengineering, Nelson Mandela-African Institution of Science and Technology, Arusha, Tanzania
| | - E Mpolya
- Department of Health and Biomedical Sciences, School of Life Science and Bioengineering, Nelson Mandela-African Institution of Science and Technology, Arusha, Tanzania
| | - J M Spitsbergen
- Department of Biological Sciences, Western Michigan University, USA
| | - C Onyambu
- Department of Diagnostic and Radiation Medicine, School of Health Sciences, University of Nairobi, Kenya
| | - E Sauli
- Department of Health and Biomedical Sciences, School of Life Science and Bioengineering, Nelson Mandela-African Institution of Science and Technology, Arusha, Tanzania
| | - J-M Vianney
- Department of Health and Biomedical Sciences, School of Life Science and Bioengineering, Nelson Mandela-African Institution of Science and Technology, Arusha, Tanzania
| |
Collapse
|
24
|
CAMCI H. Relationship of Forehead Aesthetics with Frontal Sinus Size and Skeletal Malocclusions. CUMHURIYET DENTAL JOURNAL 2020. [DOI: 10.7126/cumudj.777128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
25
|
Sex determination in cremated human remains using the lateral angle of the pars petrosa ossis temporalis: is old age a limiting factor? Forensic Sci Med Pathol 2019; 15:392-398. [DOI: 10.1007/s12024-019-00131-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2019] [Indexed: 10/26/2022]
|
26
|
Krämer M, Herzau B, Reichenbach JR. Segmentation and visualization of the human cranial bone by T2* approximation using ultra-short echo time (UTE) magnetic resonance imaging. Z Med Phys 2019; 30:51-59. [PMID: 31277935 DOI: 10.1016/j.zemedi.2019.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/08/2019] [Accepted: 06/03/2019] [Indexed: 11/19/2022]
Abstract
Segmentation of the human cranial bone from MRI data is challenging, because compact bone is characterized by very short transverse relaxation times and typically produces no signal when using conventional magnetic resonance imaging (MRI) sequences. In this work, we propose a fully automated segmentation algorithm, which uses dual-echo, ultra-short echo-time (UTE) MRI data. The segmentation was initialized by interval thresholding of approximated T2* relaxation time maps in the range of 1ms<T2*<3ms. This parameter range was derived from a manual region-of-interest analysis of high resolution data of the cranial layers, resulting in average T2* relaxation times of 1.7±0.3ms in the lamina externa, 2.5±0.3ms in the diploe and 1.7±0.2ms in the lamina interna. Segmentations were performed based on data of 8 healthy volunteers that were acquired with different acquisition parameters and spatial resolutions to test the stability of the algorithm. Comparison with computed tomography data demonstrated close agreement with the segmented UTE MRI data. Visualization of the segmented cranial bone was performed by volumetric rendering and by using the approximated T2* values for color coding, clearly visualizing the cranial sutures as well as their intersections.
Collapse
Affiliation(s)
- Martin Krämer
- Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University Jena, Germany.
| | - Benedikt Herzau
- Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University Jena, Germany
| | - Jürgen R Reichenbach
- Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University Jena, Germany
| |
Collapse
|
27
|
Frank K, Gotkin RH, Pavicic T, Morozov SP, Gombolevskiy VA, Petraikin AV, Movsisyan TV, Koban KC, Hladik C, Cotofana S. Age and Gender Differences of the Frontal Bone: A Computed Tomographic (CT)-Based Study. Aesthet Surg J 2019; 39:699-710. [PMID: 30325412 DOI: 10.1093/asj/sjy270] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Age-related changes of the frontal bone in both males and females have received limited attention, although understanding these changes is crucial to developing the best surgical and nonsurgical treatment plans for this area. OBJECTIVES To investigate age-related and gender-related changes of the forehead. METHODS Cranial computed tomographic images from 157 Caucasian individuals were investigated (10 males and 10 females from each of the following decades: 20-29 years, 30-39 years, 40-49 years, 50-59 years, 60-69 years, 70-79 years, 80-89 years, and of 8 males and 9 females aged 90-98 years). Frontal bone thickness and forehead distance measurements were carried out to analyze age and gender differences. RESULTS With increasing age, the size of a male forehead reduces until no significant differences to a female forehead is present at old age (P = 0.307). The thickness of the frontal bone of the lower forehead (≤4 cm cranial to the nasal root) increased slightly in both genders with increasing age. In the upper forehead (≥4 cm cranial to the nasal root), frontal bone thickness decreased significantly (P = 0.002) in males but showed no statistically significant change in thickness in females (P = 0.165). CONCLUSIONS The shape of the frontal bone varies in young individuals of different genders and undergoes complex changes with age because of bone remodeling. Understanding these bony changes, in addition to those in the soft tissues, helps physicians choose the best surgical and nonsurgical treatment options for the forehead. LEVEL OF EVIDENCE: 4
Collapse
Affiliation(s)
- Konstantin Frank
- Department of Hand, Plastic, and Aesthetic Surgery, Maximilian University Munich, Ludwig, Germany
| | | | | | - Sergey P Morozov
- Department of Health Care of Moscow, Research and Practical Center of Medical Radiology, Moscow, Russia
| | - Victor A Gombolevskiy
- Department of Health Care of Moscow, Research and Practical Center of Medical Radiology, Moscow, Russia
| | - Alexey V Petraikin
- Department of Health Care of Moscow, Research and Practical Center of Medical Radiology, Moscow, Russia
| | - Tigran V Movsisyan
- Department of Health Care of Moscow, Research and Practical Center of Medical Radiology, Moscow, Russia
| | - Konstantin C Koban
- Department of Hand, Plastic, and Aesthetic Surgery, Maximilian University Munich, Ludwig, Germany
| | | | | |
Collapse
|
28
|
Cotofana S, Lachman N. Anatomie der Fettkompartimente des Gesichts und ihre Bedeutung für die ästhetische Chirurgie. J Dtsch Dermatol Ges 2019; 17:399-415. [PMID: 30958928 DOI: 10.1111/ddg.13737_g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 07/03/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Sebastian Cotofana
- Department of Medical Education, Albany Medical College, Albany, New York, USA
| | - Nirusha Lachman
- Department of Anatomy and Department of Surgery, Division of Plastic Surgery, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota, USA
| |
Collapse
|
29
|
Nawayseh N, Sinan HA, Alteneiji S, Hamdan S. Effect of gender on the biodynamic responses to vibration induced by a whole-body vibration training machine. Proc Inst Mech Eng H 2019; 233:383-392. [PMID: 30887901 DOI: 10.1177/0954411919830122] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Whole-body vibration training machines are used by both male and female users. However, studies investigating the biodynamic responses to vibration during training have used either mixed-gender subjects or male subjects. No study has investigated the effect of gender on the biodynamic responses under vibration training conditions. The objective of this study is to investigate the effect of gender on the apparent mass and the vibration of the head of standing people during exposure to vibration. A total of 40 subjects (20 females and 20 males) were exposed to vertical vibration at six frequencies in the range 20-45 Hz and vibration acceleration in the range 10.8-20.9 m/s2 (peak). The subjects stood on a force platform mounted on the vibrating plate of the machine adopting an upright standing posture with their knees unlocked and their arms straight along their bodies. The vertical acceleration and force at the interface between the vibrating plate and the feet were measured and used to calculate the apparent mass. The accelerations of the head in the x-, y- and z-directions were also measured and used to calculate the transmissibility to the head. The apparent mass of males was found higher than that of females. The transmissibility to the head in all directions was found higher in females than males. The differences in the biodynamic responses between males and females were attributed to the differences in body properties and structure of the two genders. The results of this study imply the need for gender-specific vibration training programmes.
Collapse
Affiliation(s)
- Naser Nawayseh
- 1 Department of Mechanical Engineering, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Hawra Al Sinan
- 1 Department of Mechanical Engineering, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Shamma Alteneiji
- 1 Department of Mechanical Engineering, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Sadeque Hamdan
- 2 Sustainable Engineering Asset Management (SEAM) Research Group, University of Sharjah, Sharjah, United Arab Emirates
| |
Collapse
|
30
|
Cotofana S, Lachman N. Anatomy of the Facial Fat Compartments and their Relevance in Aesthetic Surgery. J Dtsch Dermatol Ges 2019; 17:399-413. [DOI: 10.1111/ddg.13737] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 07/03/2018] [Indexed: 01/27/2023]
Affiliation(s)
- Sebastian Cotofana
- Department of Medical EducationAlbany Medical College Albany New York USA
| | - Nirusha Lachman
- Department of Anatomy and Department of SurgeryDivision of Plastic SurgeryMayo Clinic College of Medicine and ScienceMayo Clinic Rochester Minnesota USA
| |
Collapse
|
31
|
Robertson JM, Kingsley BE. Sexually Dimorphic Faciometrics in Black Racial Groups From Early Adulthood to Late Middle Age. EVOLUTIONARY PSYCHOLOGY 2018; 16:1474704918811056. [PMID: 30458649 PMCID: PMC10480802 DOI: 10.1177/1474704918811056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 10/03/2018] [Indexed: 01/15/2023] Open
Abstract
An increasing body of research focusing on gender-related traits has utilized faciometrics in order to consider sexual dimorphism: Aspects as diverse as social heuristics, facial attractiveness, sexual orientation, aggression, and trustworthiness have all been investigated. However, the majority of these studies have tended to focus on White or Caucasian student populations and have paid little regard to either older populations or racial background. The current study therefore investigated sexual dimorphism in 450 participants (225 women) from a Black population across four age groups (20s, 30s, 40s, and 50s). In line with much previous research using White or Caucasian faces, the expected sexual dimorphism was seen in the younger age-group in three of the four indices (cheekbone prominence, facial width to lower facial height, and lower face height to full face height). However, consistent with more recent literature, the facial width to height ratio (fWHR) was not found to be significantly different between men and women in this age-group. Contrary to previous research, when considering broader age groups, the three established measures of facial sexual dimorphism, when looked at independently, remained static over time, but this was not true for fWHR. It is concluded that facial structure does not follow the same aging trajectory in all populations and care should be taken in choice of facial metric, depending on the nature of the sample under investigation.
Collapse
|
32
|
Cotofana S, Gotkin RH, Ascher B, Morozov SP, Gombolevsky VA, Laipan AS, Pyatintsky IA, Movsisyan TV, Koban KC, Hladik C, Frank K. Calvarial Volume Loss and Facial Aging: A Computed Tomographic (CT)-Based Study. Aesthet Surg J 2018; 38:1043-1051. [PMID: 29635393 DOI: 10.1093/asj/sjy096] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Our understanding of the aging changes involving the cranium and its impact on the overlying soft tissues is limited. OBJECTIVES This study was designed to look at the changes that occur in the cranium with aging and to propose an additional mechanism for loss of support for overlying soft tissues. METHODS One hundred and fifty-seven white individuals (10 males and 10 females in each decade: 20-29 years, 30-39 years, 40-49 years, 50-59 years, 60-69 years, 70-79 years, 80-89 years, and 8 males and 9 females aged 90-98 years) were investigated. Computed tomographic (CT) multiplanar scans with standardized measurements of cranial thickness were performed for the frontal bone, nasion, vertex, pterion, lambda, calvarial and midfacial height, and sagittal and transverse diameter. RESULTS Increasing age correlated with a decrease in sagittal diameter in both males (rp = -0.201) and females (rp = -0.055) but with an increase in transverse diameter in both males (rp = 0.233) and females (rp = 0.207). Frontal bone thickness decreased in males -1.57mm/-18.14%, whereas it increased slightly in females +0.26mm/+3.04%. At the pterion, bone thickness increased significantly in both genders. Calvarial volume decreased with increased age in both males and females: -70.2 ml/-5.35% and -61.4 ml/-5.10%, respectively. CONCLUSIONS The lateral expansion of the skull may favor a skeletonized appearance of the face in elderly individuals. The computed volume of the calvaria decreased with advancing age in both genders, providing an additional element in the multifactorial model for facial soft-tissue laxity. LEVEL OF EVIDENCE 2
Collapse
Affiliation(s)
- Sebastian Cotofana
- Department of Medical Education, Albany Medical College, Albany, NY, USA
| | | | - Benjamin Ascher
- Plastic and Reconstructive Surgeon, Iena Plastic Surgery Clinic, Paris, France
| | - Sergey P Morozov
- Research and Practical Center of Medical Radiology, Department of Health Care of Moscow, Moscow, Russia
| | - Victor A Gombolevsky
- Research and Practical Center of Medical Radiology, Department of Health Care of Moscow, Moscow, Russia
| | - Albina S Laipan
- Research and Practical Center of Medical Radiology, Department of Health Care of Moscow, Moscow, Russia
| | - Ilya A Pyatintsky
- Research and Practical Center of Medical Radiology, Department of Health Care of Moscow, Moscow, Russia
| | - Tigran V Movsisyan
- Research and Practical Center of Medical Radiology, Department of Health Care of Moscow, Moscow, Russia
| | - Konstantin C Koban
- Division of Hand, Plastic and Aesthetic Surgery, Ludwig, Germany and Maximilian University Munich, Munich, Germany
| | - Casey Hladik
- Department of Medical Education, Albany Medical College, Albany, NY, USA
| | - Konstantin Frank
- Division of Hand, Plastic and Aesthetic Surgery, Ludwig, Germany and Maximilian University Munich, Munich, Germany
| |
Collapse
|
33
|
Afacan G, Onal T, Akansel G, Arslan A. Is the lateral angle of the internal acoustic canal sexually dimorphic in non-adults? An investigation by routine cranial magnetic resonance imaging. HOMO-JOURNAL OF COMPARATIVE HUMAN BIOLOGY 2017; 68:393-397. [DOI: 10.1016/j.jchb.2017.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 08/09/2017] [Indexed: 11/28/2022]
|
34
|
Robertson JM, Kingsley BE, Ford GC. Sexually Dimorphic Faciometrics in Humans From Early Adulthood to Late Middle Age: Dynamic, Declining, and Differentiated. EVOLUTIONARY PSYCHOLOGY 2017; 15:1474704917730640. [PMID: 28901197 PMCID: PMC10480910 DOI: 10.1177/1474704917730640] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 07/03/2017] [Indexed: 09/09/2023] Open
Abstract
Faciometrics have widely been used in contemporary studies on gender-related behavioral traits, for example, perceived and actual aggression, co-operation and trustworthiness, prejudicial beliefs, unethical behavior, and achievement drive, as well as, but to a lesser degree, in nonhuman primates. For the large part, these studies have focused primarily on "student-aged" populations with little empirical scrutiny regarding the efficacy of applying these measures with older participants. This study therefore investigated sexual dimorphism across four age-groups (20s, 30s, 40s, and 50s) in 444 participants (225 men). The expected sexual dimorphism was seen in the youngest age group in three of the four indices. The facial width to height ratio, however, although most commonly used empirically, was not found to be significantly different between men and women, consistent with more recent literature. Importantly, as age increased, sexual dimorphism decreased, but this was not consistent across all measures of it. Rather, it is evident that differing measures of sexual dimorphism follow distinct developmental trajectories. The only single marker which remained significantly different across all age-groups was cheekbone prominence. Sexual dimorphic faciometrics are therefore dynamic, declining, and differentiated through adulthood. Consequently, it is concluded that care should be taken in using faciometrics in studies involving older populations and that more research is needed to understand the impact of these distinct faciometric trajectories in gender- and masculinity-related studies.
Collapse
Affiliation(s)
- Julia M. Robertson
- Buckinghamshire New University, High Wycombe, Buckinghamshire, United Kingdom
| | - Barbara E. Kingsley
- Buckinghamshire New University, High Wycombe, Buckinghamshire, United Kingdom
| | - Gina C. Ford
- Buckinghamshire New University, High Wycombe, Buckinghamshire, United Kingdom
| |
Collapse
|
35
|
Nganvongpanit K, Buddhachat K, Kaewmong P, Cherdsukjai P, Kittiwatanawong K. What the skull and scapular morphology of the dugong (Dugong dugon) can tell us: sex, habitat and body length? Sci Rep 2017; 7:1964. [PMID: 28512319 PMCID: PMC5434023 DOI: 10.1038/s41598-017-01899-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 04/06/2017] [Indexed: 11/09/2022] Open
Abstract
The dugong (Dugong dugon, Müller) is an endangered marine mammal species. We examined the relationship between sex, habitat and body length based on the skull and scapular morphology and morphometrics of 81 dugong samples in Thailand. A total of 58 parameters from the skull and scapula (25 from the cranium, 23 from the mandible and 10 from the scapula) as well as tusks were used in this study. Data were analyzed by univariate analysis, followed by discriminant analysis and multivariate linear regression. Here we show, 100% and 98.5% accuracy rates for sexing using large tusks and the skull, respectively. Scapular morphology using the caudal border tubercle and coracoid process showed 91.30% and 96.15% accuracy rates for identifying males and females. Skull morphometrics could categorize dugong habitat, i.e. living in the Andaman Sea or Gulf of Thailand, with 100% accuracy. Moreover, our model could be used to estimate body length with coefficient of determination (R 2) of 0.985. The results of our study showed that skull morphology and morphometric measurements could be used as a tool for sex identification, location identification and estimation of body length. But scapular morphology is the best tool for sex identification in dugongs.
Collapse
Affiliation(s)
- Korakot Nganvongpanit
- Excellence Center in Veterinary Bioscience, Chiang Mai University, Chiang Mai, 50100, Thailand.
- Animal Bone and Joint Research Laboratory, Department of Veterinary Biosciences and Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand.
| | - Kittisak Buddhachat
- Excellence Center in Veterinary Bioscience, Chiang Mai University, Chiang Mai, 50100, Thailand
- Animal Bone and Joint Research Laboratory, Department of Veterinary Biosciences and Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand
- Department of Biology, Faculty of Science, Naresuan University, Phitsanulok, 65000, Thailand
| | | | | | | |
Collapse
|
36
|
Franklin D, Swift L, Flavel A. ‘Virtual anthropology’ and radiographic imaging in the Forensic Medical Sciences. EGYPTIAN JOURNAL OF FORENSIC SCIENCES 2016. [DOI: 10.1016/j.ejfs.2016.05.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
37
|
Rangel de Lázaro G, de la Cuétara JM, Píšová H, Lorenzo C, Bruner E. Diploic vessels and computed tomography: Segmentation and comparison in modern humans and fossil hominids. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 159:313-24. [DOI: 10.1002/ajpa.22878] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/10/2015] [Accepted: 09/21/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Gizéh Rangel de Lázaro
- Área de Prehistoria; Universitat Rovira I Virgili; Tarragona Spain
- Institut Català De Paleoecologia Humana I Evolució Social (IPHES); Tarragona Spain
| | | | - Hana Píšová
- Antropologické Oddělení; Univerzita Karlova and Národní Muzeum; Prague Czech Republic
| | - Carlos Lorenzo
- Área de Prehistoria; Universitat Rovira I Virgili; Tarragona Spain
- Institut Català De Paleoecologia Humana I Evolució Social (IPHES); Tarragona Spain
| | - Emiliano Bruner
- Grupo de Paleobiología; Centro Nacional De Investigación Sobre La Evolución Humana (CENIEH); Burgos Spain
| |
Collapse
|