Results 21 to 30 of about 208,038 (337)

In vivo Adaptive Focusing for Clinical Contrast-Enhanced Transcranial Ultrasound Imaging in Human [PDF]

, 2022
Imaging the human brain vasculature with high spatial and temporal resolution remains challenging in the clinic today. Transcranial ultrasound is scarcely used for cerebrovascular imaging, due to low sensitivity and strong phase aberrations induced by the skull bone that only enable major brain vessel imaging, even with ultrasound contrast agent ...
arxiv   +1 more source

Spatio-temporal structure of cell distribution in cortical Bone Multicellular Units: a mathematical model [PDF]

Bone 48 (2011) 918-926, 2010
Bone remodelling maintains the functionality of skeletal tissue by locally coordinating bone-resorbing cells (osteoclasts) and bone-forming cells (osteoblasts) in the form of Bone Multicellular Units (BMUs). Understanding the emergence of such structured units out of the complex network of biochemical interactions between bone cells is essential to ...
arxiv   +1 more source

Breast Cancer Induced Bone Osteolysis Prediction Using Temporal Variational Auto-Encoders [PDF]

arXiv, 2022
Objective and Impact Statement. We adopt a deep learning model for bone osteolysis prediction on computed tomography (CT) images of murine breast cancer bone metastases. Given the bone CT scans at previous time steps, the model incorporates the bone-cancer interactions learned from the sequential images and generates future CT images.
arxiv  

Bone refilling in cortical bone multicellular units: Insights into tetracycline double labelling from a computational model [PDF]

Biomech Model Mechanobiol (2014) 13:185-203, 2012
Bone remodelling is carried out by `bone multicellular units' (BMUs) in which active osteoclasts and active osteoblasts are spatially and temporally coupled. The refilling of new bone by osteoblasts towards the back of the BMU occurs at a rate that depends both on the number of osteoblasts and on their secretory activity.
arxiv   +1 more source

Chondroblastoma of the temporal bone

Acta Oto-Laryngologica, 2011
Chondroblastomas are highly destructive tumors that are derived from immature cartilage cells. The occurrence of this tumor in the temporal bone or skull base is uncommon. Approximately 70 cases have previously been reported, several of which have involved the temporomandibular joint (TMJ).
Hatano M, De Donato G, Falcioni M, SANNA, Mario   +3 more
openaire   +3 more sources

Otological manifestations of temporal bone fractures

Journal of Medical and Scientific Research
Background: Temporal bone fractures are caused by high intensity trauma and can result in various facial and cochleovestibular sequelae, which can affect the quality of life.
Ravindran D, Dev SS, Sindhu BS
doaj   +1 more source

Effectiveness of Temporal Augmentation Using a Calvarial Onlay Graft during Pterional Craniotomy

Archives of Plastic Surgery, 2016
Temporal hollowing occurs to varying degrees after pterional craniotomy. The most common cause of temporal hollowing is a bony defect of the pterional and temporal regions due to the resection of the sphenoid ridge and temporal squama for adequate ...
Yoon Soo Kim, Hyung Suk Yi, Han Kyu Kim, Yea Sik Han   +3 more
doaj   +1 more source

Facial nerve palsy as the presenting feature of metastatic prostatic cancer in the temporal bone

Acta Oto-Laryngologica Case Reports, 2021
Metastasis of malignant tumors to the temporal bone is relatively rare. We report a case of facial nerve palsy due to the metastatic prostatic cancer to the temporal bone with favorable and functional results.
Daichi Fujii, Hikari Shimoda, Natsumi Uehara, Takeshi Fujita, Masanori Teshima, Hirotaka Shinomiya, Akinobu Kakigi, Tomoaki Terakawa, Masato Fujisawa, Ken-ichi Nibu   +9 more
doaj   +1 more source

Towards a New Spatial Representation of Bone Remodeling [PDF]

, 2011
Irregular bone remodeling is associated with a number of bone diseases such as osteoporosis and multiple myeloma. Computational and mathematical modeling can aid in therapy and treatment as well as understanding fundamental biology. Different approaches to modeling give insight into different aspects of a phenomena so it is useful to have an arsenal ...
arxiv   +1 more source

On Stress Driven Diffusion in Bone -- An Experimental Study [PDF]

arXiv, 2021
Abstract The transport of nutrients or signal constituents that stimulate growth of bone tissue is supposed to be affected by a static mechanical load. It follows from basic thermodynamical principles that constituents causing volumetric change are dragged along the gradients of hydrostatic stress.
arxiv