AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Apr 2007
Case ReportsDural arteriovenous fistulas with cortical venous drainage: incidence, clinical presentation, and treatment.
Our purpose was to report our experience with intracranial dural arteriovenous fistulas (DAVFs) with cortical venous drainage during a 12-year period. ⋯ Most DAVFs with cortical venous drainage have an aggressive clinical course. Treatment by a neurovascular team by using surgery, embolization, or a combination resulted in cure in all cases, with a very low complication rate.
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AJNR Am J Neuroradiol · Apr 2007
Lower cervical nerve root block using CT fluoroscopy in patients with large body habitus: another benefit of the swimmer's position.
We describe a method of performing lower cervical nerve root block (CNRB) with CT fluoroscopy in patients with large body habitus using the swimmer's position. This approach reduces image noise with acceptable visualization of vital structures and improved foraminal/root access. Anticipated use of the swimmer's position coupled with minimally modified radiation exposure parameters can limit radiation dose to operator/patient and reduce procedure time to match that of CNRB using CT fluoroscopy in typical patients.
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AJNR Am J Neuroradiol · Apr 2007
Vertebroplasty for osteoporotic fractures with spinal canal compromise.
Percutaneous vertebroplasty can aggravate spinal canal narrowing, especially in patients with preoperative retropulsion. The purpose of this study was to evaluate changes in spinal canal dimension during percutaneous vertebroplasty for osteoporotic fractures with retropulsion. ⋯ Vertebroplasty can be performed safely in patients with spinal canal compromise. This procedure can reduce pain, increase vertebral body height, and decrease wedge angle without worsening of retropulsion.
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AJNR Am J Neuroradiol · Mar 2007
Review Case ReportsSpinal arteriovenous malformations associated with Klippel-Trenaunay-Weber syndrome: a literature search and report of two cases.
Patients with Klippel-Trenaunay-Weber syndrome present with venous varices, cutaneous capillary malformations, and tissue hypertrophy, usually involving an extremity. A small but important subset also harbors arteriovenous malformations (AVMs) of the spine. ⋯ These cases and our review of the literature emphasize the importance of screening the spine for AVMs. In addition, it is also important to investigate for the presence of multiple spinal AVMs.
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AJNR Am J Neuroradiol · Mar 2007
Comparative StudyStereotactic comparison among cerebral blood volume, methionine uptake, and histopathology in brain glioma.
Vascularity, metabolism, and histologic grade are related in gliomas but the exact determinants of these relationships are not fully defined. We used image coregistration and stereotactic biopsies to regionally compare cerebral blood volume (CBV) and (11)C-methionine (MET) uptake measurements in brain gliomas and to assess their relationship by histopathologic examination. ⋯ Within glial tumors, there is a local relationship between CBV and MET uptake measurements. Both provide indices of focal malignant activity.