Contrast Allergy and SI joint injection

I have a patient with a true allergy to contrast. I'm planning to perform an SI joint injection for her. What would you guys do: a) Do injection without contrast and utilize AP / lateral views with fluoro for needle confirmation? b) Have her undergo pre-treatment for a contrast allergy prior to injection and then perform injection c) Other My gut say to just do it without contrast but I am interested in others thoughts/ experiences.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums