AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · May 1993
Comparative StudyExtended preoperative polyvinyl alcohol microembolization of intracranial meningiomas: assessment of two embolization techniques.
To evaluate the efficacy of preoperative meningioma devascularization with small polyvinyl alcohol (PVA) particles. ⋯ Extended microembolization with 50- to 150-microns PVA particles improves the surgical treatment of meningiomas, as compared with larger particle embolization. It may also be the only treatment required in older or high-risk patients. The protective effect of steroid medication before the endovascular treatment of meningiomas is suggested by our study.
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AJNR Am J Neuroradiol · May 1993
Case Reports Comparative StudyComparison of dynamic CT and stable xenon CT in ischemic cerebrovascular disease.
To investigate a new hemodynamic parameter that can be obtained by dynamic CT and that reflects cerebral blood flow (CBF), in patients with ischemic cerebrovascular disease. ⋯ This parameter (f) is thought to represent a relative CBF and it can be used in evaluation of the hemodynamic status in ischemic cerebrovascular disease.
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AJNR Am J Neuroradiol · May 1993
Microanatomy of the excised human spinal cord and the cervicomedullary junction examined with high-resolution MR imaging at 9.4 Tesla.
To study in detail the MR anatomy of the spinal cord and the cervicomedullary junction that could serve as a reference for clinical MR studies. ⋯ Although cellular details are still beyond the limits of this investigation, the images at 9.4 T show the spinal cord and cervicomedullary junction with detail comparable to low-power microscopic images of fixed sections, especially with respect to distinguishing gray and white matter, nuclei, tracts, and angioarchitecture.