What causes headache after having an MRI?
Oct 12, 2022
Source: Cainiu Health
Dr. Yang Jun
Introduction
Headache after undergoing MRI may be caused by claustrophobia, hypertension, or allergic reaction to MRI contrast agents. Patients with claustrophobia may experience headaches due to the confined space of the MRI scanner. Headaches may also occur post-MRI in individuals with hypertension. Some individuals may develop headaches as a result of an allergic reaction to the MRI contrast agent.
Headaches after undergoing MRI may be caused by claustrophobia, hypertension, or an allergic reaction to the MRI contrast agent.
1. Claustrophobia: Claustrophobia is usually related to genetic and personality factors. The main symptoms include dizziness, difficulty breathing, and rapid heartbeat in enclosed spaces. Because the MRI scanner has a confined space, patients may experience headaches. Symptoms can be alleviated by relaxing the mind and resting appropriately, as advised by a physician.
2. Hypertension: The exact pathogenesis of hypertension is unclear and is generally associated with physiological and pathological factors. Symptoms such as dizziness, headache, and fainting may occur. Headaches following an MRI may result from elevated blood pressure. According to medical advice, medications such as nifedipine controlled-release tablets or irbesartan tablets can be used to manage and relieve symptoms.
3. Allergic reaction to MRI contrast agent: While standard MRI imaging is typically performed without contrast, some patients with specific conditions require injection of the contrast agent gadopentetate dimeglumine to achieve clearer images. Some individuals may be allergic to this contrast agent, experiencing symptoms such as vomiting, nausea, dizziness, and headache.
