Metallic stents: evaluation of MR imaging safety.
نویسندگان
چکیده
منابع مشابه
MR safety and imaging of neuroform stents at 3T.
The Neuroform stent is a self-expanding nitinol stent designed for use in wide-necked intracranial aneurysms. Heating and imaging artifacts were evaluated by using a porcine carotid artery aneurysm model in a 3T MR system. A suspended Neuroform stent was tested for deflection. No heating was measured, and no evidence of deflection of the stent was found. Imaging artifacts were minimal. MR imagi...
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Magnetic resonance (MR) imaging has become a commonly accepted medical procedure. Manufacturers of medical implant devices are submitting claims that their devices are safe and effective in a MR environment. This paper concentrates on the issue of heating of patients due to the interaction of metallic implants with the strong radiofrequency (RF) magnetic field produced by the MR scanner. The co...
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Relapsing polychondritis is a rare multisystem disease. We describe the presentation and treatment of a patient with relapsing polychondritis and review the literature. This patient had involvement of the tracheobronchial tree requiring insertion of metallic stents.
متن کاملEndoscopic removal of metallic airway stents.
BACKGROUND Complications of metallic airway stents include granulation tissue formation, fracture of struts, migration, and mucous plugging. When these complications result in airway injury or obstruction, it may become necessary to remove the stent. There have been few reports detailing techniques and complications associated with endoscopic removal of metallic airway stents. We report our exp...
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BACKGROUND AND PURPOSE Platybasia, or abnormal obtuseness of the basal angle, was first measured on plain skull images. At present, evaluation of the brain and skull more commonly involves CT and MR imaging. We evaluated a new MR imaging method of evaluating platybasia. METHODS We retrospectively evaluated midline sagittal MR images in 200 adults and 50 children. The basal angle of the skull ...
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ژورنال
عنوان ژورنال: American Journal of Roentgenology
سال: 1999
ISSN: 0361-803X,1546-3141
DOI: 10.2214/ajr.173.3.10470877