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MRA findings (MIP of 3D-TOF) of a non-heated vs heated face. (A) Non-heated face without previous infrared exposure. (B) Heated face with previous infrared exposure. The Infrared-exposure results in a far better visualization of all facial vessels, with a larger caliber of the arteries and a higher visual signal. MRA, magnetic resonance angiography; MIP, maximum intensity projection; TOF, time of flight.
