Results 71 to 80 of about 17,215,497 (295)

The effect of anatomical variables and use of the Lifts system on hearing outcomes after implantation of an active transcutaneous bone conduction device in bilateral congenital conductive hearing loss

Journal of Otolaryngology - Head and Neck Surgery, 2020
Background Malformations of the temporal bone present different challenges to the implantation of a transcutaneous active bone conduction device, such as Bonebridge (Med-el, Innsbruck, Austria). This study aims to describe the benefits of high-resolution
Jinsong Yang, Chunli Zhao, Yujie Liu, Mengdie Gao, Ran Ren, Danni Wang, Zhigang Huang, Shouqin Zhao   +7 more
doaj   +1 more source

Comparing cranial biomechanics between Barbourofelis fricki and Smilodon fatalis: Is there a universal killing‐bite among saber‐toothed predators?

The Anatomical Record, EarlyView.
Abstract Saber‐tooths, extinct apex predators with long and blade‐like upper canines, have appeared iteratively at least five times in the evolutionary history of vertebrates. Although saber‐tooths exhibit a relatively diverse range of morphologies, it is widely accepted that all killed their prey using the same predatory behavior. In this study, we CT‐
Borja Figueirido, Shane Tucker, Stephan Lautenschlager   +2 more
wiley   +1 more source

Growing sabers: Mandibular shape and biomechanical performance trajectories during the ontogeny of Smilodon fatalis

The Anatomical Record, EarlyView.
Abstract The evolution of organisms can be studied through the lens of developmental systems, as the timing of development of morphological features is an important aspect to consider when studying a phenotype. Such data can be challenging to obtain in fossil amniotes owing to the scarcity of their fossil record. However, the numerous remains of Rancho
Narimane Chatar, Romain Boman, Valentin Fischer, Valentina Segura, Clara Julémont, Z. Jack Tseng   +5 more
wiley   +1 more source

Morphometric study of the mastoid process and its role in sex differentiation: A nigerian computed tomography study

Journal of Forensic Science and Medicine
Background: The mastoid process can be utilized in forensic identification due to its resistance to alterations and population variations in its morphology.
Beryl Shitandi Ominde, John N Igabari, Joyce Ekeme Ikubor   +2 more
doaj   +1 more source

MASTOID PROCESS MORPHOMETRY ON DRY SKULLS

Kırıkkale Üniversitesi Tıp Fakültesi Dergisi, 2020
Objective: Mastoid process is the downward projection from the mastoid part of the temporal bone located posteroinferior to external auditory meatus. Mastoid process is a palpable bony structure which enables to determine the location of asterion. The aim of this study is to define details of mastoid process anatomy to enlighten surgeons, anatomists ...
Selma ÇALIŞKAN, Sinem AKKAŞOĞLU, Mustafa Fevzi SARGON, Mehmet Deniz DEMİRYÜREK   +3 more
openaire   +3 more sources

Myological and osteological approaches to gape and bite force reconstruction in Smilodon fatalis

The Anatomical Record, EarlyView.
Abstract Masticatory gape and bite force are important behavioral and ecological variables. While much has been written about the highly derived masticatory anatomy of Smilodon fatalis, there remains a great deal of debate about their masticatory behaviors.
Ashley R. Deutsch, Arin Berger, Lara L. Martens, Benjamin R. Witt, Rachel L. J. Smith, Adam Hartstone‐Rose   +5 more
wiley   +1 more source

Exposed weapons: A revised reconstruction of the facial anatomy and life appearance of the saber‐toothed cat Megantereon (Felidae, Machairodontinae)

The Anatomical Record, EarlyView.
Abstract Megantereon was a widespread saber‐toothed felid from the Pliocene and Pleistocene of the Old World and North America, but its rarity in the fossil record makes it complicated to restore its life appearance. Lack of complete specimens makes it necessary to combine information from fossils of different individuals to reconstruct their facial ...
Mauricio Antón, Gema Siliceo, Juan Francisco Pastor, Qigao Jiangzuo, Manuel J. Salesa   +4 more
wiley   +1 more source

Morphological and Morphometric Analysis of Carotid Canal Apertures in the Nigerian Population

The Annals of African Surgery
Background: The external opening of the carotid canal (EOCC), the entry point of the internal carotid artery into the skull, varies across populations. This study characterized the EOCC with the mastoid process (shortest distance from the EOCC to the tip
Moses Adetona, Rotimi Ajani, Abiodun Olowo, Christopher Ofuadarho   +3 more
doaj   +1 more source

Segmentation of cortical bone, trabecular bone, and medullary pores from micro‐CT images using 2D and 3D deep learning models

The Anatomical Record, EarlyView.
Abstract Computed tomography (CT) enables rapid imaging of large‐scale studies of bone, but those datasets typically require manual segmentation, which is time‐consuming and prone to error. Convolutional neural networks (CNNs) offer an automated solution, achieving superior performance on image data.
Andrew H. Lee, Julian M. Moore, Brandon Vera Covarrubias, Leigha M. Lynch   +3 more
wiley   +1 more source

Computed Tomography Study of the Retrosigmoid Craniotomy Keyhole Approach Using Surface Landmarks

International Journal of Clinical Practice, 2023
Background. Due to a lack of accessibility and individual differences in surgical procedures, many previous studies on keyholes are not practical. Objective.
Wei Hu, Jiang Zhou, Zheng-Min Liu, Ye Li, Qing-Feng Cai, Xiao-Ming Hu, Yan-Bing Yu   +6 more
doaj   +1 more source