What Student Need to Know about Safe Use of Contrast Media In RadioDiagnosis

The rapid increase in the use of medical imaging during the last few decades has resulted in a substantial increase in the use of radiologic contrast media. Half of the approximately 76 million computed tomographic (CT) and 34 million magnetic resonance (MR) imaging examinations performed each year include the use of intravenous contrast agents. Iodinated and gadolinium-based contrast media are used on a daily basis in most radiology practices. These agents often are essential to providing accurate diagnoses, and are nearly always safe and effective when administered correctly. Although the prevalence of these reactions is low for both CT and MR imaging , reactions to contrast media do occur, and rapid evaluation and treatment of them requires designated and well-trained personnel and appropriate, readily available equipment and medications. Gadolinium chelates, approved for intravascular use for MR imaging since the late 1980s, are extremely well tolerated. Most reactions are mild and transient, with