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When are cerebral aneurysm clips 100% safe for MRI exams?

May 19, 2021 In daily practice, it s often not known which type of cerebral aneurysm clip was implanted in a patient, and ferromagnetic-type clips were used until the late 1990s. The Dutch Association of Medical Specialists (FMS) has now written a guideline for developing a local policy to safely perform MRI in these patients. Patients with an aneurysm clip implanted in a period when ferromagnetic types were still in use can present themselves for MRI for decades to come, reported Dr. Mark B.M. Hofman, from the department of radiology and nuclear medicine at Vrije Universiteit, Amsterdam UMC, the Netherlands, and colleagues at the International Society for Magnetic Resonance in Medicine (ISMRM) 2021 annual congress.

Up to 40% of COVID-19 survivors experience neurological effects

May 18, 2021 Up to 40% of COVID-19 survivors experience long-term neurological conditions, and it s crucial that radiologists understand these, according to a May 17 presentation at the International Society for Magnetic Resonance in Medicine (ISMRM) 2021 virtual annual meeting. The good news is that MRI has shown itself to be an effective way to track COVID-19 s lasting neurological effects, according to presenter Dr. Simonetta Gerevini of Azienda Ospedaliera Papa Giovanni XXIII hospital in Bergamo, Italy. Neuroimaging can illuminate a spectrum of central nervous system abnormalities, from ischemic lesions and microhemorrhages to meningoencephalitis and white matter lesions, she noted. Long-term neurological and neuropsychological sequelae are reported in up to 30% to 40% of COVID-19 survivors. Symptoms can include fatigue, myalgia, headache, dysautonomia, and cognitive impairment, according to Gerevini.

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