Neurosurgery
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Cerebrospinal fluid leakage and ventricular compression during open surgery may lead to brain deformation called brain shift. Brain shift may affect intraoperative navigation that is based on image-based preoperative planning. Tools to correct or predict these anatomic modifications can be important to maintain precision during open guided neurosurgery. ⋯ CBCT, cone-beam computed tomographyHU, Hounsfield units.
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Basilar fenestration aneurysms are rare, challenging intracranial vascular lesions with atypical anatomy. The posterior circulation represents a difficult therapeutic dilemma because of the close proximity of crucial life-sustaining brainstem structures. The use of flow diverter technology has been very limited in posterior circulation vessels. ⋯ AA, arachnoid acidADP, adenosine diphosphateFD, flow diverterMRA, magnetic resonance angiogramPED, Pipeline embolization deviceVBJ, vertebrobasilar junction.
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Multiple methods for minimally invasive (MIS) thoracic and lumbar pedicle screw placement exist. The guide wire is almost universally used for most insertion techniques; however, its use is not without complication and potentially prolongs surgical procedures. ⋯ MIS, minimally invasive spineTP, transverse process.