Radiographic Contrast Agents — A Perspective

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Abstract
Contrast agents have been used in radiologic procedures for more than 60 years. Those currently in widest use have been available for nearly 40 years and are among the most commonly used and the safest of drugs. Concern about their safety persists, however — in part because, unlike most drugs, contrast agents are used exclusively for diagnostic rather than therapeutic purposes. The article by Lasser et al.1 in this issue of the Journal addresses several questions that have become particularly pressing with the introduction of three new contrast agents over the past two years. The first question is, Can the . . .