AJNR. American journal of neuroradiology
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Soft tissue perineuriomas are an unusual type of peripheral nerve sheath tumors distinct from schwannomas and neurofibromas, with interesting histologic findings. They are not well characterized on radiographic examination. We report this case of a patient with sinonasal perineurioma to help define the imaging and pathologic features of this rare head and neck tumor.
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AJNR Am J Neuroradiol · Feb 2009
Fate of manuscripts previously rejected by the American Journal of Neuroradiology: a follow-up analysis.
This is a follow-up article to "Fate of Submitted Manuscripts Rejected from the American Journal of Neuroradiology: Outcomes and Commentary." The purpose of this study was to quantify differences in citation frequency between manuscripts published in the American Journal of Neuroradiology (AJNR) and those published after AJNR rejection and to understand citation frequency differences among rejected manuscripts. ⋯ Results from this study suggest that publications initially rejected from AJNR have a significantly lower citation frequency than those accepted by AJNR. Among rejected manuscripts, citations frequencies were highest in technical reports and among journals close to the neuroradiologic discipline.
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AJNR Am J Neuroradiol · Jan 2009
Normal thickness and appearance of the prevertebral soft tissues on multidetector CT.
Analysis of the prevertebral soft tissue (PVST) is helpful in detecting osseous and ligamentous injuries of the cervical spine. Because the standard of care has shifted from radiographs to multidetector CT (MDCT), a re-examination of the PVST on MDCT images is needed to establish normal values for thickness appropriate for this imaging technique. ⋯ The thickness of the PVST is important in the detection of underlying injuries to the cervical spine. We propose the obtained values as the upper limits of normal for PVST thickness on MDCT images in the adult population.
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AJNR Am J Neuroradiol · Jan 2009
Embolization of intracranial arteriovenous malformations with ethylene-vinyl alcohol copolymer (Onyx).
Endovascular therapy of intracranial arteriovenous malformations (AVMs) is increasingly used. However, it is still under discussion which embolic material is optimal. We report our experience in the treatment of AVMs with ethylene-vinyl alcohol copolymer (Onyx). ⋯ The overall initial complete obliteration rate of intracranial AVMs with Onyx embolization is relatively high, compared with other embolic agents, with evidence of stability with time. Morbidomortality rates due to AVM embolization as a single treatment method or as a part of a multimodality treatment should be further assessed regarding the natural course of the disease.
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AJNR Am J Neuroradiol · Jan 2009
Malignant fibrous histiocytoma of the head and neck: CT and MR imaging findings.
Malignant fibrous histiocytoma (MFH) is uncommon in the head and neck. The purpose of this study was to investigate CT and MR imaging features of 13 cases of MFH of this area. ⋯ Although rare, MFH of the head and neck is an aggressive tumor that arises most commonly in the sinonasal tract and is frequently associated with soft-tissue invasion and bone destruction on CT and MR images.