craniosynostoses is defined as a condition of premature fusion in one or more cranial sutures leading to a number of significant complications, mainly raised intracranial pressure which can itself cause other neurodevelopmental complications. copper beaten skull appearance is a well-known presentation of craniosynostoses made by the strong impression of the brain’s gyri on the inner layer of th...

several lesions (inflammatory, neoplastic and congenital) can involve in the skull base. the role of imaging is to detect the location and extension of lesion, determine mass and mass like lesions, differentiate benign from malignant tumors, detect invasion to adjacent structures and make decision in surgical planning. skull base divides to anterior, middle and posterior cranial fossa and some ...

Domestic rabbits (Oryctolagus cuniculus) are increasingly popular as household pets; therefore, veterinarians need to be familiar with the most common diseases afflicting rabbits including dental diseases. Diagnostic approaches for dental disease include gross oral examination, endoscopic oral examination, skull radiography, and computed tomography (CT). CT overcomes many limitations of standar...

A 25-yr-old Iranian woman with incomplete abortion who was diagnosed and scheduled for dilatation and curettage procedures under general anesthesia. After premedication with Fentanyl 50µg and midazolam 2mg and enough pre-oxygenation, anesthesia was induced by sodium thiopental 250 mg and succynilcholine 60 mg with mask ventilation. After completion of procedure, the patient had a period o...

Magnetoencephalography (MEG) signals are influenced by skull defects. However, there is a lack of evidence of this influence during source reconstruction. Our objectives are to characterize errors in source reconstruction from MEG signals due to ignoring skull defects and to assess the ability of an exact finite element head model to eliminate such errors. A detailed finite element model of the...

In this paper we propose a method to include skull inhomogeneities in the EEG forward/inverse calculation by parcellating the skull based on a combination of skull anatomy and thickness. We show that it is enough to determine a few skull parameters (4 6) in the inverse search to capture the skull inhomogeneities if we also include the thickness. The validity of the linear relation between skull...

Cephalometric lateral radiography is an important paraclinical tool in diagnosing and treatment design of skeletaldental malocclusions. Objective of this study is to determine accuracy amount of measurements of cephalometry in two types of digital and ordinary graphy to specify the more beneficial method having more accuracy. In this descriptive-analytical study samples include digital and ordi...

Objectives: To examine presentations and prevalence of head injury among elder victims of blunt trauma and to estimate the prevalence of occult injuries associated with a normal level of consciousness, absence of neurologic deficit, and no evidence of significant skull fracture. Methods: The study population consisted of all patients aged 65 years or older enrolled in the National Emergency X-R...

OBJECTIVE To investigate the contribution of alcohol ingestion to the radiological workload of an inner city accident and emergency (A&E) department. METHODS A prospective survey of patients presenting to A&E who required radiographs was performed over a seven day period. The A&E clinician questioned patients about alcohol intake during the six hours before the onset of the presenting complai...

We used computer simulations to investigate finite element models [1] of the human skull in EEG source analysis. In the first part, we present a systematic investigation on the accuracy of different ways to account for the layered skull structure. We investigated local models, where each skull location was modeled differently, and global models, where the skull was assumed to be homogeneous, bo...