MRI Contrast Media: How Harmful is Gadolinium?

Was standing: 12.11.2019 17: 35 Clock Enlarge image An MRI scan can detail organs and other tissues. Imaging techniques such as magnetic resonance imaging (MRI) require contrast agents to visualize poorly visible organ structures and other body tissue. Contrast agents are therefore often indispensable in the diagnosis. Gadolinium-containing contrast media have been around for some 30 years. They are injected before an MRI scan to visualize abnormal tissue or bone changes. Hidden sites of inflammation, for example in multiple sclerosis, or metastases in cancer can be better detected with their help. MRI Contrast Media: How Harmful is Gadolinium? Visit – 12. (****************************************************************): (*******************) Clock Author: Anna Schubert Imaging techniques such as MRI use gadolinium contrast agents in certain cases. The heavy metal can accumulate in the body and possibly lead to side effects. Gadolinium is still detectable in the body for months The heavy metal gadolinium is just as toxic as lead or mercury. In the contrast agent, the gadolinium is chemically bound, in so-called chelates. Physicians assumed that gadolinium is excreted unchanged by the kidneys within a few hours after admission. In fact, gadolinium can still be detected in the body for up to one and a half years after administration – in the skin, in the bones and also in the brain. Certain contrast agents with gadolinium are prohibited There are two groups of gadolinium-containing contrast agents: The use of linear contrast agents with gadolinium has been banned since the beginning 2018 by the Federal Institute for Drugs and Medical Devices in Germany. Furthermore, the so-called macrocyclic contrast media are approved. In them the gadolinium should be better bound than in linear means. However, after the application of macrocyclic contrast agents, residues of gadolinium in the brain can also be detected. Criticism of authorization procedures for contrast media Before medical substances are approved for human use, they undergo elaborate and lengthy approval procedures. Critics point out that the approval of the contrast agent was made only by testing a single dose, but not for multiple applications to a person. But especially people with cancer or multiple sclerosis are often examined at close intervals with contrast agents to control a possible progression of the disease. Health damage by gadolinum not recognized Damage to health caused by deposited gadolinium in healthy people has not yet been confirmed. But again and again sufferers report after gadolinium-containing contrast agents about: kidney problems skin changes neurological disorders such as headache, dizziness and emotional disorders muscle pain is known that contrast agents with gadolinium in kidney patients tissue trimmings (fibrosis) can trigger. Application only after careful consideration Whether a contrast-enhanced MRI examination is necessary, only a doctor can decide individually. The guidelines of the professional associations stipulate that the administration of contrast agents is only justified if contrast-free imaging is not sufficient. If contrast agent is used, then always in as low a dose as possible. additional Information Radiologists: extra profit with contrast agents The first: Panorama For the first time, confidential accounts show how cheap radiologists buy contrast media and what high profits they can make with it. An ex-BGH judge considers this practice “punishable”. more Experts on the topic Prof. Dr. Olav JansenDirector of the Department of Radiology and NeuroradiologyUKSH Campus KielArnold-Heller-Straße 324105 Kiel www.uksh.deProf. Dr. Matthias TaupitzRadiologistCharité University Medicine BerlinHindenburgdamm 3012203 Berlinradiologie.charite.deDr. Susanne WagnerControl Media Researcher
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