Christine Chappard

Region-specific patterns of sexual shape variation in the human bony labyrinth: 3D geometric morphometric analysis of a sample with known genomic sex

Lumila Paula Menéndez, María Clara López‐Sosa, Gustavo Daniel Montiel Hernandez, Wara Siles et autres

ABSTRACT The human bony labyrinth has attracted increasing interest because of its taxonomic, evolutionary, and functional significance. Although sexual dimorphism has been reported in several aspects of the temporal bone, the extent to which sex, age, size, and allometry contribute to labyrinth …

de, at, mx, ar, gb, es, br, cl, fr (code pays fourni par la source)

Longitudinal 3D quantification of joint space from CT images: Semi-automatic segmentation and feasibility of nnU-Net automation

Jean Baptiste Deloges, Stéphanie Uk, Jordan Cohen, Marianne Bourguignon et autres

OBJECTIVES: The most commonly imaging techniques used in knee osteoarthritis (OA) of the are Xrays and MRI. Computed tomography (CT) however, has his own advantages, especially three-dimensional high-resolution representation of subchondral bone and epiphyseal bone structure. Addition of a method allowing 3D …

fr (code pays fourni par la source)

Ultrasound Imaging of Cortical Bone: Cortex Geometry and Measurement of Porosity Based on Wave Speed for Bone Remodeling Estimation

Amadou Sall Dia, Guillaume Renaud, Christine Chappard, Quentin Grimal

fr (code pays fourni par la source)

Cortical bone parameters measured at the one-third distal radius obtained with axial transmission and HR-pQCT compared with anthropometric data in a representative population

Jean-Gabriel Minonzio, Donatien Ramiandrisoa, Sylvie Fernandez, Christine Chappard et autres

cl, fr (code pays fourni par la source)

Gyroid‐Structured Scaffolds Guide Uniform Ossification and Modulate Vascular Morphology During Rat Calvarial Bone Defect Regeneration

Guoyan Xian, Baptiste Charbonnier, Morad Bensidhoum, Esther Potier et autres

Bone repair procedures rely on osteoconductive material scaffolds that guide and promote bone ingrowth through their architecture. This study investigated how the bone formation and vascularization are modulated within gyroid macroporous scaffolds during the regeneration of rat calvarial bone defects. It compared …

fr, cn (code pays fourni par la source)

Ultrasound imaging of cortical bone: cortex geometry and measurement of porosity based on wave speed for bone remodeling estimation

Amadou Sall DIA, Guillaume Renaud, Christine Chappard, Quentin Grimal

Intracortical US imaging extends B-mode imaging into bone using a dedicated image reconstruction algorithm that corrects for refraction at the bone-soft tissue interfaces. It has shown promising results in a few healthy, predominantly young adults, providing anatomical images of the cortex (periosteal …

Cell quantification at the osteochondral interface from synchrotron radiation phase contrast micro-computed tomography images using a deep learning approach

Hao Xu, Cécile Olivier, Hajar Sajidy, Stéphane Pallu et autres

Osteochondral interface consists of two tissues: the calcified cartilage (CC) containing chondrocytes, and subchondral bone (SCB) containing osteocytes that interact with each other. In this study, we propose a new method for the three-dimensional (3D) segmentation of chondrocyte and osteocyte lacunae in …

fr, cn (code pays fourni par la source)

Mesures quantitatives tridimensionnelles issues de la segmentation semi-automatique de l’espace articulaire à 36 mois d’intervalle à partir d’images tomodensitométriques

Stéphanie Uk, Michel Bourguignon, Jérémie F. Cohen, Jean-Denis Larédo et autres

fr (code pays fourni par la source)

3-D Transcranial Ultrasound Localization Microscopy Reveals Major Arteries in the Sheep Brain

Antoine Coudert, Louise Denis, Arthur Chavignon, Sylvain Bodard et autres

Cerebral circulation ensures the proper functioning of the entire human body, and its interruption, i.e., stroke, leads to irreversible damage. However, tools for observing cerebral circulation are still lacking. Although MRI and computed tomography (CT) scans serve as conventional methods, their accessibility …

fr (code pays fourni par la source)

Marker‐based C‐arm self‐calibration with unknown calibration pattern

Odran Pivot, Sandrine Voros, Christine Chappard, Guillaume Bernard et autres

BACKGROUND: Accurate tomographic reconstructions require the knowledge of the actual acquisition geometry. Many mobile C-arm CT scanners have poorly reproducible acquisition geometries and thus need acquisition-specific calibration procedures. Most of geometric self-calibration methods based on projection data either need prior information or …

fr (code pays fourni par la source)

QUANTIFICATION OF CARTILAGE AND SUBCHONDRAL BONE CYSTS ON KNEE SPECIMENS BASED ON SPECTRAL PHOTON-COUNTING COMPUTED TOMOGRAPHY

Juan Abascal, Cécile Olivier, Suzanne Bussod, Françoise Peyrin et autres

fr (code pays fourni par la source)

3D Transcranial ultrasound localization microscopy reveals major arteries in the sheep brain

Antoine Coudert, Louise Denis, Arthur Chavignon, Sylvain Bodard et autres

Abstract Objective Stroke, a leading cause of mortality and disability globally, demands swift and accurate diagnosis for effective treatment. Although MRI and CT scans serve as conventional methods, their accessibility remains a challenge, prompting exploration into alternative, portable, and non-ionizing imaging solutions …

fr (code pays fourni par la source)