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  • Diagnosis
  • CT scans of the head can confirm a diagnosis of skull fracture or brain bleeding, but even in the emergency room such things are uncommon and not minor injuries so CT of the head is usually not necessary. (wikipedia.org)
  • rare
  • It must be removed to be cured.Definitions: A rare, biphasic, neuroblastic, and pigmented epithelial neoplasm of craniofacial sites, usually involving the oral cavity or gums. (wikipedia.org)
  • cranial
  • This is distinctly different from an encephalocele, which is a herniation of brain tissue and/or leptomeninges, that develops through a defect in the skull, where there is a continuity with the cranial cavity. (wikipedia.org)
  • parts
  • If there is an excess of cerebrospinal fluid (CSF), light is scattered to different parts of the skull, producing patterns characteristic to hydrocephalus. (wikipedia.org)
  • brain
  • An altered level of consciousness can result from a variety of factors, including alterations in the chemical environment of the brain (e.g. exposure to poisons or intoxicants), insufficient oxygen or blood flow in the brain, and excessive pressure within the skull. (wikipedia.org)
  • symptoms
  • If there is concern about a skull fracture, focal neurological symptoms present or worsening symptoms, then CT imaging may be useful. (wikipedia.org)
  • leptomeninges
  • This is distinctly different from an encephalocele, which is a herniation of brain tissue and/or leptomeninges, that develops through a defect in the skull, where there is a continuity with the cranial cavity. (wikipedia.org)
  • effects
  • These effects depend on skull-specific parameters and can lead to patient-specific thermal responses to the same transducer power. (stanford.edu)
  • The authors then validate and compare the predicted skull efficiencies to an experimental metric based on the subject thermal responses during tcMRgFUS treatments in a dataset of seventeen human subjects.Seventeen human head CT scans were used to create tissue acoustic models, simulating the effects of reflection, absorption, and scattering of the acoustic beam as it propagates through a heterogeneous skull. (stanford.edu)
  • cause
  • In transcranial magnetic resonance-guided focused ultrasound (tcMRgFUS) treatments, the acoustic and spatial heterogeneity of the skull cause reflection, absorption, and scattering of the acoustic beams. (stanford.edu)
  • head
  • Magnetic resonance imaging (MRI) of the head showed a fairly large mass with mixed signal intensity of the skull vault within homogenous contrast enhancement involving the scalp of bifrontal supraorbital compartment. (nnjournal.net)