Results 71 to 80 of about 29,521 (263)

Automated placement of stereotactic injections using a laser scan of the skull [PDF]

open access: yesarXiv, 2014
Stereotactic targeting is a commonly used technique for performing injections in the brains of mice and other animals. The most common method for targeting stereoscopic injections uses the skull indentations bregma and lambda as reference points and is limited in its precision by factors such as skull curvature and individual variation, as well as an ...
arxiv  

In vivo evaluation of wearable head impact sensors [PDF]

open access: yes, 2015
Inertial sensors are commonly used to measure human head motion. Some sensors have been validated with dummy or cadaver experiments, but methods to evaluate sensors in vivo are lacking. Here we present an in vivo method using high speed video to evaluate teeth-mounted (mouthguard), soft tissue-mounted (skin patch), and headgear-mounted (skull cap ...
arxiv   +1 more source

Primary Non-Hodgkin's Malignant Lymphoma of the Sinonasal Tract [PDF]

open access: yes, 2009
Primary non-Hodgkin’s lymphomas (NHL) of the sinonasal tract are rather uncommon entities. Morphologically and radiographically, sinonasal lymphomas are difficult to distinguish from other malignant neoplasms or non- neoplastic processes.
Bhagat, Sanjeev   +4 more
core  

Natural History of Acute Subdural Hematoma [PDF]

open access: yes, 2017
Although guidelines for surgical decision-making in patients with acute subdural hematomas (ASDHs) are widely available, the evidence supporting these guidelines is weak, and management of these patients must often be individualized.
Valadka, Alex B., Vega, Rafael A.
core   +2 more sources

Bone fusion in normal and pathological development is constrained by the network architecture of the human skull [PDF]

open access: yesarXiv, 2016
The premature fusion of cranial bones, craniosynostosis, affects the correct development of the skull producing morphological malformations in newborns. To assess the susceptibility of each craniofacial articulation to close prematurely, we used a network model of the skull to quantify the link reliability (an index based on stochastic block modeling ...
arxiv  

Intracranial transplantation of the tumor induced by adenovirus type 12 in Syrian hamster--an experimental brain tumor model [PDF]

open access: yes, 1971
A method of intracranial transplantation of the tumor induced by adenovirus type 12 in syrian hamster has been described. The incidence of intracranial tumor development was 86 (90.5 %) out of 95 animals and the average survival time and tumor size at ...
Tabuchi, Kazuo
core   +1 more source

Skull base chordomas review of current treatment paradigms

open access: yesWorld Journal of Otorhinolaryngology-Head and Neck Surgery, 2020
Background: Chordomas are locally invasive neoplasms, arising from notochordal remnants and can appear anywhere along the axial skeleton. Local recurrences are common, and distant metastases may occur years after the initial presentation.
Dan Yaniv   +4 more
doaj  

Research on mouse brain tissue optical model based on Monte Carlo [PDF]

open access: yesarXiv, 2020
We studied the transmission of photons in mouse brain in both with and without intact skull states using Monte Carlo method. Photon track, optical absorption density and fluence rate were used as indicators for analysis. We found that, the photon distribution without intact skull goes farther in both longitudinal and transverse directions compared with
arxiv  

Heterogeneous Angular Spectrum Approach for Trans-skull Imaging and Focusing [PDF]

open access: yes, 2019
Ultrasound, alone or in concert with circulating microbubble contrast agents, has emerged as a promising modality for therapy and imaging of brain diseases. While this has become possible due to advancements in aberration correction methods, a range of applications, including adaptive focusing and tracking of the microbubble dynamics through the human ...
arxiv   +1 more source

Sellar region extramedullary plasmacytoma – A rare skull base tumour

open access: yesInterdisciplinary Neurosurgery, 2020
Plasma cell neoplasms can present either as multiple myeloma, or in
Yan Zheng Ho   +2 more
doaj  

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