Vascular contrast media
No patient should be exposed to unnecessary risks, and this is the responsibility of the radiologist.
Intravenous contrast injection is a frequent activity in daily practice, so we believe it is essential that the radiologist be informed about the different types of contrast, their indications and contraindications, adverse effects and their usefulness and contribution to the diagnosis of various lesions.
First, both the physician and the radiology technician are responsible for conducting a thorough interview to rule out risk factors such as a history of adverse reactions to contrast media, asthma, atopy, etc., and also to assess renal function , which is crucial since it often precludes the injection of contrast and sometimes necessitates post-procedure treatment. If a study cannot be performed because it is absolutely contraindicated, the physician must be aware of and offer alternative diagnostic options.
The patient must be clearly informed of the risks, the most frequent and most serious adverse reactions, as well as the necessity of the contrast injection to assess the pathology being studied. The patient always has the final say, provided they are properly informed and the procedure has been clearly explained to them. Simply handing them a document to sign is insufficient; they must be given a verbal explanation of what the document means and the risks and benefits involved.
Secondly, the console physician must know how to respond to each type of adverse reaction, as the patient’s life is their responsibility in that situation. Therefore, they must ensure they have the necessary medication and all other supplies they deem appropriate.
Third, the radiologist must be familiar with the pathologies being studied and the contribution of the contrast agent to each, as well as the dosages and acquisition phases. If they believe the contrast agent will not contribute to the diagnosis, they can explain this either to the patient or to the physician who ordered the study.
No patient should be exposed to unnecessary risks, and this is the responsibility of the radiologist.
You can consult here the latest ACR Manual on Contrast Media (2026), where you will find information and numerous bibliographic citations to study the subject.
You can also consult the following article on the subject: Management and Prevention of Hypersensitivity Reactions toRadiocontrast Media: A Consensus Statement from the AmericanCollege of Radiology and the American Academy of Allergy,Asthma & Immunology.
For any comments or suggestions: radiologyzones@gmail.com
This material was automatically translated from medicosradiologos.com.ar
