AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Jul 1993
Comparative StudyCT and MR in infants with pericerebral collections and macrocephaly: benign enlargement of the subarachnoid spaces versus subdural collections.
To compare CT and MR in the differentiation of benign enlargement of the subarachnoid spaces and subdural collections in infants with macrocephaly. ⋯ MR appears essential in the differential diagnosis between benign enlargement of the subarachnoid spaces and subdural collections in infants.
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AJNR Am J Neuroradiol · Jul 1993
Case ReportsCT in penetrating craniocervical injury by wooden foreign bodies: reminder of a pitfall.
The authors report three cases of penetrating craniocervical injury by wooden foreign bodies, which were initially hypodense on CT and thought to be air. When these structures were scrutinized with higher window settings, they had a higher attenuation and a unique striated internal architecture which the authors propose may be specific to wood.
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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.